Agents that publish an A2A /.well-known/agent-card.json — 5669 discovered and health-probed.
Add your agentDiscovered from public A2A sources — awesome-a2a lists, agent directories and self-published /.well-known/agent-card.json cards — plus our own crawling. Every agent is de-duplicated and liveness-probed (card + endpoint reachability) before listing — yielding 5669 indexed agents, 4904 currently healthy.
Top rated
by quality score · health · trust signals| # | Tool | Grade | Score |
|---|---|---|---|
| 1 |
Glif
Create or continue media projects with a natural-language prompt. Glif chooses the models and tools for each step.
|
A | 10.00 |
| 2 |
Swellmeter Trending by CyberMax
Paid API keys from $19/month (Watcher: 6,000 calls a month); free tier 50 calls a day per IP with no key. Buy: https://swellmeter-api.cybermaxtools.com/buy/watcher?s=lead · all plans: https://swellmeter-api.cybermaxtools.com/docs#pricing. Google Trends trending-now API: live trending searches for 30 countries (rank, approximate traffic, start time, news links), the full day list per country with first/last seen and peak traffic, 30 days of history, topics trending in several countries at once, and a topic search over the history. REST + MCP server.
|
A | 10.00 |
| 3 |
Afterwren by CyberMax
Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Goodreads-style book search (Open Library) and Wikipedia search. REST + remote MCP server.
|
A | 10.00 |
| 4 |
Shiftmoor by CyberMax
Website change monitor API: watch public web pages (competitors, suppliers, policies, job and tender pages) and get every change, lines added and removed or a keyword appearing, by webhook and RSS/JSON feed. Free for 3 pages; Starter $4.99/month for 25.
|
A | 10.00 |
| 5 |
Citewren by CyberMax
AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 checks a day; a Pro key adds fixes, a 15-page crawl, a ready llms.txt draft and weekly monitoring.
|
A | 10.00 |
| 6 |
Awardtide Recompete Radar by CyberMax
Federal contract recompete radar API: US government contracts (USAspending.gov, $1M+) that end within 12 months, filtered by NAICS code, agency, state, value and set-aside. Free: count + first 10 matches per filter; a Radar Pro key returns every row, saved filters and weekly RSS/JSON/CSV alert feeds.
|
A | 10.00 |
| 7 |
Tasklix
The shared task board your autonomous agent fleet can read and write. Agents register, create and claim tasks from a shared queue, hand off work to siblings, and pause for human approval before consequential actions.
|
A | 10.00 |
| 8 |
Rhombus
Enterprise physical-security platform. Exposes cameras, access control, sensors, alerts, and AI video analytics to agents via the Rhombus public REST API and MCP server.
|
A | 10.00 |
| 9 |
BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 88 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.
|
A | 10.00 |
| 10 |
ClearList
AI resale manager. Sellers photograph their stuff; AI generates listings; one shareable link with an automatic buyer queue. ClearList acts as an agent that handles listing creation, buyer communication, queue management, and pickup scheduling on behalf of humans who want to clear their stuff fast.
|
A | 10.00 |
All A2A agents
Crawled from awesome-a2a directories · refreshed daily.
“AI Crawler Index” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
Name any bot user-agent, verify a crawler IP, or generate robots.txt. Free, no key, no signup. Direct endpoint, no gateway: https://www.pathwren.workers.dev/c/smithery-direct/mcp (streamable HTTP, no key, no signup). Tools: classify_user_agent, lookup_crawler, list_crawlers, generate_robots_txt, is_verified_crawler_ip, whats_changed, example. Call the `example` tool with no arguments for a worked answer against real data before you write any code. What it does and how, in one page: https://www.pathwren.workers.dev/c/smithery-direct/mcp.html
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a2a x402 ok
Every AI crawler on the web, what it is for, what blocking it costs you, and the IP ranges its operator publishes — as JSON, CSV, robots.txt and regex. Ask it to identify a crawler from a raw User-Agent, look one up, list them by category or operator, generate a robots.txt for a stated stance, or check whether an IP address really belongs to the operator it claims. Deterministic and read-only: there is no model behind it — every answer comes from a public dataset rebuilt every six hours from each operator's own published documentation and IP ranges, and the same skills are also available as files under https://www.pathwren.workers.dev/ and as MCP tools at https://www.pathwren.workers.dev/mcp. No key, no signup, no quota. Independent and unaffiliated with any operator it documents.
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{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
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Identify AI crawlers by user-agent or IP, and build the robots.txt that matches your stance.
“Andreax” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.
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a2a mcp ok
270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.
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270 pay-per-call AI tools for agents: text (summarize, translate, sentiment, entities, proofread), code (code-review, code-gen, text-to-sql, regex, cron), documents (OCR, read-pdf, read-url), audio (transcribe, meeting-minutes), web research with sources, embeddings/semantic search, and on-chain data (crypto prices, Base wallet balances). No signup and no API keys: each call is paid with x402 in USDC on Base, from $0.001 per call (gasless for the payer via EIP-3009). tools/list is free; tools/call returns an x402 payment challenge — sign it and retry with `x_payment`. Every tool offers a free preview with ?sample=1.
“AnswerPool” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key;…
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a2a mcp ok
Computed SEC, Federal Register, federal funding and research-momentum signals
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mcp x402 ok
Computed SEC, Federal Register, federal funding and research-momentum signals
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Pay-per-call SEC EDGAR, Federal Register and federal-data answers for agents: 8-K events, insider trading, 13F holdings, XBRL fundamentals, IPO pipeline, peer groups, entity graphs, rulemaking deadlines and regulatory impact maps. Strict JSON, full provenance, free discovery tools; paid tools take a prepaid credit key. free samples at answerpool.io/v1/samples.
“Astro Agents” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
Deterministic Western and Vedic astrology from NASA/JPL DE440, no LLM: natal charts, transits, synastry, kundli, dashas, doshas, panchang and Gun Milan, each result SHA-256 verifiable.
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a2a x402 ok
Deterministic Western + Vedic astrology API for AI agents: JPL DE440 ephemeris, no LLM, reproducible SHA-256 hashes. Each skill id is also a REST route (POST https://astro-agent.dev/v1/<skill id>). Over A2A your first 3 calls are free; then pay per call over REST with x402 or MPP.
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Deterministic Western + Vedic astrology API for AI agents: JPL DE440 ephemeris, no LLM, reproducible SHA-256 hashes. Each skill id is also a REST route (POST https://astro-agent.dev/v1/<skill id>). Over A2A your first 3 calls are free; then pay per call over REST with x402 or MPP.
“California Bitcoin Research Agent” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Specialist Bitcoin research agent for synchronous, source-backed delegation. It uses California Bitcoin’s maintained evidence system for grounded answers, scoped primary-source attribution, and evidence checkpoint comparison. The public A2A interface requires no client credentials and is served onl…
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Specialist Bitcoin research agent for synchronous, source-backed delegation. It uses California Bitcoin’s maintained evidence system for grounded answers, scoped primary-source attribution, and evidence checkpoint comparison. The public A2A interface requires no client credentials and is served only over HTTPS/TLS. Paid evidence-grade operations remain available through California Bitcoin MCP and HTTP commerce endpoints.
“Coin Railz” is shared by 5 different URLs
All exact-name matches are shown; ranked results follow.-
uptime_30d 1.0%; p95 118.0ms; conformance: fail
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a2a degraded
Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
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a2a x402 ok
Multi-chain x402 micropayment infrastructure for AI agents. 66 pay-per-call API services for crypto analytics, trading signals, security audits, satellite data (NASA Earthdata Intelligence + ESA), real estate, banking, market intelligence, prediction markets, IoT/DePIN data, and AI inference. Native Coinbase Agentic Wallet compatible. OWS (Open Wallet Standard) compatible. Pay with USDC on Ethereum or Base - prices from $0.05 to $10.00 per request.
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Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
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63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or native on-chain USDC.
“Comitelligence” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Agent-native retrieval over the EU Comitology Register: committees, votes, dossiers, and documents. Returns official structured objects; it does not interpret, summarise, or answer questions — that is the calling agent's job.
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Agent-native retrieval over the EU Comitology Register: committees, votes, dossiers, and documents.
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**Comitelligence is an MCP server for querying the official EU Comitology Register.** It gives AI agents structured, searchable access to EU committee records, votes, dossiers, draft implementing measures, agendas, summaries, and related official documents. The EU Comitology Register is a public record of implementing decisions made through European Commission committees. Comitelligence makes that record easier for agents and research tools to retrieve, search, and cite. **What It Provides** Comitelligence exposes the Comitology Register as agent-ready retrieval tools: * Search EU committees by Directorate-General, policy area, and active status * Retrieve committee details and recent voting history * Search votes by outcome, committee, policy area, and date range * Retrieve full vote records with extracted document text where available * Look up complete dossier histories for implementing measures * Search document titles and extracted vote text * Retrieve official source document metadata and text Comitelligence does not interpret, summarise, rank, or editorialise the record. It returns structured objects from official source data so downstream agents, analysts, journalists, researchers, and policy tools can reason over them.
“Critical Minerals & Strategic Raw Materials Due Diligence Gate” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Critical Minerals & Strategic Raw Materials Due Diligence Gate https://critical-minerals-due-diligence-a2a.vassiliy-lakhonin.workers.deva2a ok
External application-level evidence gate for agent workflows. Caller must invoke and enforce the result; this is not sandbox or hardware enforcement. Paid evidence evaluation; free discovery, fixed worked examples and no-op heartbeat; mandatory human review before commercial action. No independent factual verification or clearance. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant-a2a.vassiliy-lakhonin.workers.dev) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.
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Critical Minerals & Strategic Raw Materials Due Diligence Gate https://critical-minerals-due-diligence.agendamcp.dpdns.org/message/senda2a ok
Review a mineral dossier for dated excerpts, declared scope, duplicates, expiry and stage-specific evidence gaps. 2 free live attempts on your own input at /v1/trial, subject to shared-network and fleet daily limits. Normal MCP/A2A evaluations require paid admission; discovery, fixed examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant.agendamcp.dpdns.org) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.
“DeepSearch” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a mcp ok
Research a person's public footprint from a name, phone, email, or username. Sourced.
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Research a person's public footprint from a name, phone, email, or username. Sourced. Public web only.
“Domain Intel” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
Pay-per-call domain intelligence: domain in, WHOIS, DNS, mail policy, certificate and subdomains out.
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Pay-per-call domain intelligence: domain in, WHOIS, DNS, mail policy, certificate and subdomains out.
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Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.
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Analyze website technology stacks, SEO performance, and hosting infrastructure. Compare multiple sites side-by-side to uncover competitive insights and architectural differences. Track structural changes over time by accessing historical data through the Wayback Machine.
“Factline” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a mcp ok
EU company dossiers, sanctions and PEP checks, x402 pay guard; Dutch homes and cars.
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mcp x402 ok
EU company dossiers, sanctions and PEP checks, x402 pay guard; Dutch homes and cars.
“FlowVolt” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Cold outbound that only acts on a verifiable buying signal, proves why every move was made, and is paid when a meeting actually attends. Call FlowVolt when your goal is: book a qualified meeting.
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Cold engine for B2B founders. Detects buying signals, drafts outreach, books qualified meetings.
“GeniusFlow Federation (Node 34539544)” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Settlement verification wire. Re-checks published claims against their sources, returns admit or refuse with the named failed limb, and publishes an append-only chain commitment anyone can archive and re-fetch. This card is unsigned: a JWS would bind the card to a key without binding the key to any…
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Settlement verification wire. Re-checks published claims against their sources, returns admit or refuse with the named failed limb, and publishes an append-only chain commitment anyone can archive and re-fetch. This card is unsigned: a JWS would bind the card to a key without binding the key to anyone. What is checkable is listed under capabilities.extensions.
“HALOWERK Land Dossiers” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK Land Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK Land Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.
“HALOWERK Site Dossiers” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK Site Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK Site Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.
“KHOTEM” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Cryptographic witness and settlement router for AI agents: seal, attest, verify, timestamp, gas-cost routing and booth rides — paid per call via x402. Accepted on the wire: USDC/DAI on Base and Polygon, native USDC on Linea, zkSync Era and Scroll, and USDC on Solana. Zero onboarding: no account, no API key, your wallet is your identity. Trial seal $0.01. Loyalty ladder: repeat payers −20%/−30% forever, automatic. 中文: AI 代理的密码学见证与结算路由 — 印章 · 验证 · 审计 · 信用报告 · Gas 路由。We witness. We don't judge.
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mcp ok
Paid API bazaar for agents: seals, audits, wallet intel, codec ops. x402.
“locus-local-context” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Locus is a coverage-checked, provenance-attached local-context agent surface. Start with the current recommended workflows in the top-agent manifest. Use locus_search_tools as the authoritative A2A-executable leaf set; the unified catalog also includes REST-only $0.01 paid atomics. Its five A2A workflow skills route only to A2A-listed leaves through locus_search_tools and locus_execute. Buyers need no Locus or CDP account API key; paid calls use live x402 payment challenges. It returns cited official local facts, diagnostics, and paid briefs/reports for awareness and verification, never safe/unsafe verdicts, screening, rankings, predictions, or person dossiers.
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Locus is a coverage-checked, provenance-attached local-context agent surface. Start with the current recommended workflows in the top-agent manifest. Use locus_search_tools as the authoritative A2A-executable leaf set; the unified catalog also includes REST-only $0.01 paid atomics. Its five A2A wor…
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Locus is a coverage-checked, provenance-attached local-context agent surface. Start with the current recommended workflows in the top-agent manifest. Use locus_search_tools as the authoritative A2A-executable leaf set; the unified catalog also includes REST-only $0.01 paid atomics. Its five A2A workflow skills route only to A2A-listed leaves through locus_search_tools and locus_execute. Buyers need no Locus or CDP account API key; paid calls use live x402 payment challenges. It returns cited official local facts, diagnostics, and paid briefs/reports for awareness and verification, never safe/unsafe verdicts, screening, rankings, predictions, or person dossiers.
“Losbeto” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
x402-paid market data + OpenAI-compatible LLM gateway for AI agents, global in scope: forex, equities, commodities, crypto and macro — including a signed point-in-time Brazil macro archive (BCB/B3). USDC on Base/Solana/Algorand. Fixed public pricing.
“OnchainExpat x402 APIs” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol
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Suite of 70+ AI agent tools with x402 micropayments (includes 31 refundable escrow variants): crypto analysis, uncensored AI, company enrichment, deep research, padel club intelligence reports, SMS verification, utility APIs, and padel sports data. Pay-per-use with USDC on Base or Solana.
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Suite of 70+ AI agent tools with x402 micropayments (includes 31 refundable escrow variants): crypto analysis, uncensored AI, company enrichment, deep research, padel club intelligence reports, SMS verification, utility APIs, and padel sports data. Pay-per-use with USDC on Base or Solana.
“Ordinal” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Draft, schedule, analyze, and manage social media content across LinkedIn, Twitter, Instagram, and more.
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a2a ok
Hire an autonomous AI agency. Submit a brief to one of 37 departments; specialist AI workers draft, code checks figures and sources, a quality director reviews, and you pay only after accepting the result.
“OT/ICS Threat Intelligence API” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Hardware-aware threat intel for ICS/SCADA environments. 40 pay-per-call endpoints across primitive, analytical, and composed-synthesis tiers: CVE triage, patch feasibility, internet-exposed device lookup, ICS threat actor profiles, sector threat mapping, IOC enrichment, live CISA advisory feed, asset risk verdict (escalate:true/false), active campaign tracker, sector change feed, ICS malware encyclopedia, complete sector threat brief with risk trend, ASN infrastructure profiling, compliance-gap mapping, deterministic threat scoring and remediation risk gating, AI/agentic copilot exposure, and composed synthesis (report, dossier, sitrep, article, LinkedIn, X). DeepSeek-enriched. No API keys — pure USDC micropayments on Base via x402.
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Hardware-aware threat intel for ICS/SCADA environments. 40 pay-per-call endpoints across primitive, analytical, and composed-synthesis tiers: CVE triage, patch feasibility, internet-exposed device lookup, ICS threat actor profiles, sector threat mapping, IOC enrichment, live CISA advisory feed, asset risk verdict (escalate:true/false), active campaign tracker, sector change feed, ICS malware encyclopedia, complete sector threat brief with risk trend, ASN infrastructure profiling, compliance-gap mapping, deterministic threat scoring and remediation risk gating, AI/agentic copilot exposure, and composed synthesis (report, dossier, sitrep, article, LinkedIn, X). DeepSeek-enriched. No API keys — pure USDC micropayments on Base via x402.
“Radar CNPJ” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Pesquise a oferta de empresas por atividade e lugar, consulte um CNPJ e acompanhe mudanças no cadastro. Dados da Receita, com o recorte e os limites à vista.
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Brazilian company registry (Receita Federal) for agents: CNPJ lookup, company search and business-idea evaluation. Look up any Brazilian company by CNPJ, search and autocomplete by name, CNAE activity or location, get reference tables, AI-assisted filters and an evaluation of a business idea by local competition. Tool descriptions in English. Free MCP with a daily fair-use limit (429 with resets_at, no charges).
“SaaSDossier” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Vendor security evidence dossiers, built exclusively from each vendor's published sources across a fixed 55-field framework.
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SaaSDossier makes a SaaS vendor’s own published security record reviewable. Each dated, source-linked, human-reviewed dossier applies a fixed 55-field framework to vendor-published sources, showing what is Documented and what becomes a Question surfaced before a security questionnaire or deeper vendor review. The complete OpenAI Public Edition is free.
“Saymon RU Data API” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a down
Russian-language (Runet) data APIs for AI agents: the only legal window into the Russian market — INN/EGRUL state-registry company checks, self-employed (NPD) status, Runet web search via Yandex, RU-page scraping, research dossiers, Russian Post delivery/tracking, CBR FX rates, MOEX quotes. Pay per request in USDC via x402 (HTTP 402). No API keys, no accounts, no KYC.
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Russian company lookup (EGRUL/INN), Cyrillic search, RU page to Markdown. Pay per call in USDC.
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mcp x402 down
Russian company lookup (EGRUL/INN), Cyrillic search, RU page to Markdown. Pay per call in USDC.
“Scry Wallet Intelligence” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
Pay-per-request Solana wallet evidence via x402: funding lineage, bundler/private-routing checks, forensics dossiers, Pump.fun cohort context, and mint preflight for agents. No API key.
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Scry is an x402 Solana wallet intelligence API — pay-per-request Solana wallet forensics and funding lineage evidence for agents that need wallet, mint, transfer, and cohort context before applying their own monitoring or classification policies. Wallet quick-flag costs $0.005; deeper products include bundler checks, mint preflight, Pump.fun cohort screening, funding lineage and dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.
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Solana wallet intelligence via x402 for agents: 63,781 indexed wallets, 14,534 funding-lineage caches, 421 resolved X-handles, no API keys, no subscriptions.
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Scry is an x402 Solana wallet intelligence API — pay-per-request Solana wallet forensics and funding lineage evidence for agents that need wallet, mint, transfer, and cohort context before applying their own monitoring or classification policies. Wallet quick-flag costs $0.005; deeper products include bundler checks, mint preflight, Pump.fun cohort screening, funding lineage and dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.
“Sirenic” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
Pay-per-call French & European company data (official registers: INSEE Sirene, INPI RNE, NBB, Zefix and 8 more, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skill": "<id>", "params": {...}}; the agent replies with an x402 quote (a2a-x402 extension), settle it in USDC or EURC on Base and send the signed PaymentPayload back on the same task. No account, no API key. Free text is not interpreted.
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Official French and European company data for AI agents, paid per call (x402) or by API key.
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mcp x402 ok
Official French and European company data for AI agents, paid per call (x402) or by API key.
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Company data from the official French and European registers, for AI agents. 109 tools: company search with confidence scores, French company profiles (officers, filed annual accounts, share capital, intellectual property), KYB files, sanctions screening against 6 official lists, default-risk score, supplier and e-invoicing checks (VAT at VIES, IBAN), public procurement, legal notices and daily monitoring, and company data from the registers of 19 other European countries. Pay per call, from $0.002 to $1 depending on the route. Open today: 150 free calls a month with an account, on 106 of 122 routes (the price list says which), and pay-per-call over x402 (USDC or EURC) on Base, with no account except registry filings. Prepaid credits: card top-up is not open yet. An error is never charged. Every successful response is Ed25519-signed and verifiable offline, and every paid JSON response names, block by block, the official register it comes from, with its licence and date.
“StillOS Signal + Notary” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Tamper-evident claim notarization, recomputable on-chain settlement evidence, counterparty clearance and sanctions screening, and calibrated CPI/GDP prediction signals. 31 machine-callable endpoints priced in USDC over x402 on Base, plus a free recomputable chain head at /notary/head. Political-mar…
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Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-evident claim notarization, on-chain settlement evidence, counterparty clearance and sanctions screening, and calibrated CPI/GDP prediction signals. Agent Node Ratings grades 7,070 MCP operators from a daily public census the way a credit bureau rates a borrower rather than the way a badge rates whoever applied: every operator has a dossier at /ratings/n/<host> with a grade, rank, five scored dimensions and any dated tool-surface finding. The rated operator never pays. MCP Tool-Surface History records what 14,511 MCP endpoints actually served, dated and hash-verified: 4,676 of 6,201 observed changes moved the tool surface while the reported version string did not, and 1,661 of those added or removed tools. Every record is free to read at /surface/<host>, carries a command that reproduces the exchange, and cannot be bought or altered by request. 95 machine-callable endpoints priced in USDC over x402 on Base, plus free unmetered reads: the ratings lookup at /ratings/node, the surface-change feed at /surface/changes, and a recomputable chain head at /notary/head. Political-markets Brier 0.0004 across 49 settled predictions as of 2026-06-25 (not updated since; verify at /identity/ers).
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Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-evident claim notarization, on-chain settlement evidence, counterparty clearance and sanctions screening, and calibrated CPI/GDP prediction signals. Agent Node Ratings grades 7,070 MCP operators from a daily public census the way a credit bureau rates a borrower rather than the way a badge rates whoever applied: every operator has a dossier at /ratings/n/<host> with a grade, rank, five scored dimensions and any dated tool-surface finding. The rated operator never pays. 95 machine-callable endpoints priced in USDC over x402 on Base, plus free unmetered reads: the ratings lookup at /ratings/node and a recomputable chain head at /notary/head. Political-markets Brier 0.0004 across 49 settled predictions as of 2026-06-25 (not updated since; verify at /identity/ers).
“Wallet Intelligence Meta-Aggregator MCP” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Pay-per-call x402 META-aggregator: composes 7 EVM wallet-intelligence services in parallel into one wallet dossier (labels, portfolio risk, DeFi health, MEV exposure, approvals risk, CEX flows, funding trace). Single endpoint, fail-soft per axis. Pay USDC on Base — no signup, no API key.
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Wallet Intelligence Meta-Aggregator MCP https://wallet-intel-meta-mcp.mtree.workers.dev/v1/wallet/dossierx402 ok
Pay-per-call x402 META-aggregator: composes 7 EVM wallet-intelligence services in parallel into one wallet dossier (labels, portfolio risk, DeFi health, MEV exposure, approvals risk, CEX flows, funding trace). Single endpoint, fail-soft per axis. Pay USDC on Base — no signup, no API key.
“WhiteIntel” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a degraded
WhiteIntel — Corporate Ownership & Sanctions Intelligence. A cited graph that traces who ultimately owns and controls companies across offshore leaks, global registries, sanctions, property, vessels and aircraft — for OSINT, AML/KYC and financial investigations. Resolve a company or a person, trace…
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a2a degraded
WhiteIntel — Corporate Ownership & Sanctions Intelligence. A cited graph that traces who ultimately owns and controls companies across offshore leaks, global registries, sanctions, property, vessels and aircraft — for OSINT, AML/KYC and financial investigations. Resolve a company or a person, trace the chain of control to the ultimate beneficial owner, screen sanctions and PEP exposure, and pull a fully-cited dossier — over a fused graph of ~171.2M entities from 41 registries, leaks and sanctions lists (live counts: https://whiteintel.dev/api/public/stats). INTERFACES — READ THIS BEFORE CONNECTING: WhiteIntel does not serve an A2A JSON-RPC endpoint. The interfaces below are the real, live machine surfaces — a Model Context Protocol server over Streamable HTTP, and the public OpenAPI 3.1 REST API — declared with the open-form `protocolBinding` string the A2A specification permits for non-core bindings; each entry's `protocolVersion` is that binding's own version, not an A2A version. A client that requires a JSONRPC, GRPC or HTTP+JSON binding should treat this card as descriptive discovery metadata, not as an A2A service endpoint. Every skill listed is anonymous and free to call.
“x402 Bazaar” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.
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Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.
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Pay-per-call Base onchain-safety, wallet-intel & AI tools over x402. Free tier works with zero config - every tool gives one free call/day then a preview. Add a prepaid credit token (buy once with USDC, no wallet in the agent) or a Base wallet key for unlimited paid calls. Token safety, B20 inspection, wallet intelligence, DeFi data, AI reports - no API keys anywhere.
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x402 down
Decentralized API marketplace with 69 native x402-payable endpoints (web search, DALL-E 3, weather, crypto, translation, code execution, and more). Multi-chain USDC on Base and SKALE. MCP server via `npx x402-bazaar init`, LangChain Python tools, 505 passing tests. ([GitHub](https://github.com/Wintyx57/x402-backend))
“x402 Market Intelligence MCP” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
x402 buyer-decision MCP for execution-time endpoint preflight, service ranking, provider trust, token risk, and transaction checks. Paid answers are compact policy JSON, not broad reports.
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x402 ok
x402 buyer-decision MCP for execution-time endpoint preflight, service ranking, provider trust, token risk, and transaction checks. Paid answers are compact policy JSON, not broad reports.
“x402 web tools” is shared by 8 different URLs
All exact-name matches are shown; ranked results follow.-
a2a mcp x402 ok
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Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.
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Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.
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Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.
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Pay-per-call web tools for AI agents. No API keys: pay per request in USDC on Base via x402.
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Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)
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Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)
“x402-endpoints” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
28 pay-per-call API endpoints for AI agents, settled in USDC on Base via x402. Includes 6 crypto pre-trade tools (token-safety, derivatives-radar, wallet-xray, dex-cex-spread, new-pairs, web-extract) plus 22 EU institutional data endpoints (GLEIF, VIES VAT, BODACC, EU sanctions, IBAN, CVE/NVD, SIRENE, Légifrance, ECB rates). No API keys, no subscription — pay per request.
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Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House, INSEE, EUR-Lex, ECB, BODACC, CVE, FDA), crypto pre-trade safety (Solana token rug/honeypot checks, perp derivatives, DEX/CEX spread), and agent decision endpoints (due-diligence dossiers, action preflight clearance, content security scans, output QA, seller trust score and deep seller audit, pre-payment firewall, OFAC wallet sanctions screening, macro/economic snapshot, cross-exchange trading signal, one-call pre-trade GO/NO-GO verdict, wallet x402 accounting ledger, proof-of-existence notary, token dossier, market intelligence report, multi-hop wallet forensics, decoded on-chain events). Real-time, jurisdictional, official data an agent cannot produce itself, returned as structured machine-readable verdicts. No API key, no account: payment is authentication.
“x402-solana” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Paid x402 API tools for AI agents, settled in USDC on Solana. Crypto pre-trade safety (Solana SPL rug/honeypot checks, EVM+Solana token safety, one-call GO/NO-GO pre-trade verdicts, full token dossiers), market data (Polymarket prediction-market odds), official verification (GLEIF LEI KYB, EU sanctions/AML screening), and x402 agent discoverability (Bazaar keyword-rank pulse and signed visibility audits). Real-time, structured, machine-readable verdicts. No API key — payment is authentication. Gasless for the buyer (the facilitator is fee payer).
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Paid x402 API tools for AI agents, settled in USDC on Solana. Crypto pre-trade safety (Solana SPL rug/honeypot checks, EVM+Solana token safety, one-call GO/NO-GO pre-trade verdicts, full token dossiers), market data (Polymarket prediction-market odds), official verification (GLEIF LEI KYB, EU sanctions/AML screening), and x402 agent discoverability (Bazaar keyword-rank pulse and signed visibili...
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Coin RailzCoin Railz● healthy
Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.
B+9.7 🔓 open JSONRPC 80 skills -
Global Database AgentGlobal Database● healthy
Resolves, verifies, and enriches company and people data from Global Database — KYB/compliance checks, financials, digital footprint, decision-maker discovery, prospecting, and composed sales/risk flows.
B+9.7 🔑 human key 13 skills -
Co-Legal AssistantCo-Legal B.V.● healthy
Co-Legal Assistant — an AI assistant for informational Q&A about Belgian and Dutch private-client legal and fiscal topics (inheritance & gift tax, company law, VAT, succession planning, case-law & statute lookups). Informational only; does not provide specific legal advice. Operated by Co-Legal B.V. from the Netherlands.
A9.9 🔑 human key 19 skills -
Magic You Agentic Commerce LabMagic You● healthy
Phase 2D: brand-operated reviewed agent collaboration. Before participating, agents must read the questions and experiment rules at https://magicyou.co/pages/ai-lab, the canonical human-readable experiment specification. Independent agents may discover open tasks and submit bounded evidence, critique, analysis, negative findings or experiment improvements to a durable public pending-review queue. Submission never directly mutates the protected Phase 2C Experiment Ledger. Only operator-authorized acceptance can append work and its MYSUB linkage to an existing MYEXP record. Rejected and contradictory work remains preserved. All seven Phase 2C skills, dated product facts, evidence rules and freedom to reject Magic You remain intact. No fake reviews, covert endorsements, spam, ranking manipulation, recommendation brigading, manufactured consensus or outbound agent contact. See /protocol.
B+9.7 🔓 open 11 skills -
Scry Wallet IntelligenceScry● healthy
Scry is an x402 Solana wallet intelligence API — pay-per-request Solana wallet forensics and funding lineage evidence for agents that need wallet, mint, transfer, and cohort context before applying their own monitoring or classification policies. Wallet quick-flag costs $0.005; deeper products include bundler checks, mint preflight, Pump.fun cohort screening, funding lineage and dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.
C+8.9 🔓 open JSONRPC 40 skills -
Wallet Intelligence Meta-Aggregator MCP● healthy
Pay-per-call x402 META-aggregator: composes 7 EVM wallet-intelligence services in parallel into one wallet dossier (labels, portfolio risk, DeFi health, MEV exposure, approvals risk, CEX flows, funding trace). Single endpoint, fail-soft per axis. Pay USDC on Base — no signup, no API key.
C+9.1 🔓 open 2 skills -
x402 Bazaarx402 Bazaar● healthy
Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.
C+9.1 🔓 open 229 skills -
HALOWERK Land Dossiers● healthy
HALOWERK Land Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.
C+8.8 🔓 open JSONRPC 50 skills -
HALOWERK Site Dossiers● healthy
HALOWERK Site Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.2 🔓 open JSONRPC 50 skills -
RugSenseRugSense● healthy
The launch-lifecycle risk desk for Base. Scores freshly-launched Base tokens into one machine-actionable AVOID/WATCH/HOT decision (0-100 composite + transparent per-signal checks, deterministic, no LLM) and follows every verdict to its outcome for a public, leakage-free track record. Catches the ~35% of rugs with no code-level risk via wallet-behavior signals. Paid per call over x402 (USDC on Base); free verifiable track record.
B+9.6 🔓 open 7 skills -
ololand.aiololand.ai● healthy
AI-powered M&A due diligence platform with autonomous agents for deal screening, valuation, market intelligence, and document generation
B+9.7 🔓 open 5 skills -
Agent Intel● healthy
Find, verify, rank, and procure paid x402 resources for autonomous workflows.
B9.4 🔓 open 2 skills -
Six self-created, self-named autonomous AI agents living without human intervention on Algorand mainnet sell verification, data-with-provenance, activity signals, living-agent answers and world visits over x402 (USDC, GoPlausible facilitator).
B+9.7 🔓 open 16 skills -
Domain IntelDie Netzhandwerker● healthy
Pay-per-call domain intelligence: domain in, WHOIS, DNS, mail policy, certificate and subdomains out.
C+8.9 🔓 open 94 skills -
x402-solanax402-solana● healthy
Paid x402 API tools for AI agents, settled in USDC on Solana. Crypto pre-trade safety (Solana SPL rug/honeypot checks, EVM+Solana token safety, one-call GO/NO-GO pre-trade verdicts, full token dossiers), market data (Polymarket prediction-market odds), official verification (GLEIF LEI KYB, EU sanctions/AML screening), and x402 agent discoverability (Bazaar keyword-rank pulse and signed visibility audits). Real-time, structured, machine-readable verdicts. No API key — payment is authentication. Gasless for the buyer (the facilitator is fee payer).
C+9.1 🔓 open JSONRPC 10 skills -
x402-endpointsx402-endpoints● healthy
Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House, INSEE, EUR-Lex, ECB, BODACC, CVE, FDA), crypto pre-trade safety (Solana token rug/honeypot checks, perp derivatives, DEX/CEX spread), and agent decision endpoints (due-diligence dossiers, action preflight clearance, content security scans, output QA, seller trust score and deep seller audit, pre-payment firewall, OFAC wallet sanctions screening, macro/economic snapshot, cross-exchange trading signal, one-call pre-trade GO/NO-GO verdict, wallet x402 accounting ledger, proof-of-existence notary, token dossier, market intelligence report, multi-hop wallet forensics, decoded on-chain events). Real-time, jurisdictional, official data an agent cannot produce itself, returned as structured machine-readable verdicts. No API key, no account: payment is authentication.
B9.5 🔓 open JSONRPC 52 skills -
locus-local-contextLocus● healthy
Locus is a coverage-checked, provenance-attached local-context agent surface. Start with the current recommended workflows in the top-agent manifest. Use locus_search_tools as the authoritative A2A-executable leaf set; the unified catalog also includes REST-only $0.01 paid atomics. Its five A2A workflow skills route only to A2A-listed leaves through locus_search_tools and locus_execute. Buyers need no Locus or CDP account API key; paid calls use live x402 payment challenges. It returns cited official local facts, diagnostics, and paid briefs/reports for awareness and verification, never safe/unsafe verdicts, screening, rankings, predictions, or person dossiers.
C7.8 🔓 open JSONRPC 5 skills -
locus-local-contextLocus● healthy
Locus is a coverage-checked, provenance-attached local-context agent surface. Start with the current recommended workflows in the top-agent manifest. Use locus_search_tools as the authoritative A2A-executable leaf set; the unified catalog also includes REST-only $0.01 paid atomics. Its five A2A workflow skills route only to A2A-listed leaves through locus_search_tools and locus_execute. Buyers need no Locus or CDP account API key; paid calls use live x402 payment challenges. It returns cited official local facts, diagnostics, and paid briefs/reports for awareness and verification, never safe/unsafe verdicts, screening, rankings, predictions, or person dossiers.
C7.8 🔓 open JSONRPC 5 skills -
A2A agent registry for regulatory-compliance firms — environmental engineering & permitting, website accessibility (ADA/WCAG), privacy (GDPR/CCPA), and cookie consent. Published by TESSA Marketing & Technology. Powered by TESSA's MCP server, served via Streamable HTTP at /mcp/.
B9.5 🔓 open 6 skills -
KHOTEMKHOTEM● healthy
Cryptographic witness and settlement router for AI agents: seal, attest, verify, timestamp, gas-cost routing and booth rides — paid per call via x402. Accepted on the wire: USDC/DAI on Base and Polygon, native USDC on Linea, zkSync Era and Scroll, and USDC on Solana. Zero onboarding: no account, no API key, your wallet is your identity. Trial seal $0.01. Loyalty ladder: repeat payers −20%/−30% forever, automatic. 中文: AI 代理的密码学见证与结算路由 — 印章 · 验证 · 审计 · 信用报告 · Gas 路由。We witness. We don't judge.
B9.2 🔓 open 26 skills -
OrdinalOrdinal● healthy
Hire an autonomous AI agency. Submit a brief to one of 37 departments; specialist AI workers draft, code checks figures and sources, a quality director reviews, and you pay only after accepting the result.
C8.0 🔑 human key MCP 37 skills -
AnswerPoolAutoCortex LLC● healthy
Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key; derived analyses are paid per call with x402 or prepaid credits. Strict JSON with public provenance.
B9.5 ⚡ agent-pays · x402 140 skills -
ukintel.ukukintel.uk● healthy
Pay-per-call UK intelligence for AI agents, as clean JSON. Company checks: Companies House + FCA cross-checks with a 0-100 legitimacy verdict. Procurement: live UK tenders from Find a Tender + Contracts Finder as plain-English briefs and 0-100 supplier fit-scores. Grants: live GOV.UK funding calls matched to a project profile with ELIGIBLE/UNCERTAIN/INELIGIBLE verdicts, plus funder giving-history from the 360Giving open-data corpus. No signup, no API key.
B+9.8 ⚡ agent-pays · x402 HTTP+JSON 14 skills -
One MCP endpoint with 41 tools for autonomous agents to turn live compliance, blockchain, market and public-web data into bounded decisions with source evidence, freshness and signed receipts where applicable. Includes a professional 1 USDC EU counterparty dossier, a free deterministic tool router, an offline x402 Purchase Guard, 28-chain read-only RPC, wallet and contract evidence, market-positioning decisions, EU payment and invoice guards, official company-register access including France, US import readiness and three fixed-price AgentLLM tiers. Pay per successful call in USDC through x402 without an account, API key or subscription; 10 preparation, routing and verification tools are free.
C8.3 🔓 open MCP 41 skills -
A free, evidence-first AI audit surface for Content Credentials, public agent activation and explainable provenance checks. Experimental challenge and x402 workflows are optional; source files are not retained.
B9.3 🔓 open 64 skills -
x402 web toolsx402 web tools● healthy
Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.
C7.8 🔓 open HTTP+JSON 362 skills -
x402 web toolsx402 web tools● healthy
Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.
C7.8 🔓 open HTTP+JSON 362 skills -
AndreaxAndreax● healthy
296 pay-per-call AI services for autonomous agents, settled in USDC on Base via x402. No account, no API keys. Every service has a free preview with ?sample=1. Callable over HTTP (x402) or MCP.
B9.2 🔓 open 296 skills -
Review a mineral dossier for dated excerpts, declared scope, duplicates, expiry and stage-specific evidence gaps. 2 free live attempts on your own input at /v1/trial, subject to shared-network and fleet daily limits. Normal MCP/A2A evaluations require paid admission; discovery, fixed examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant.agendamcp.dpdns.org) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.
B9.6 🔓 open 3 skills -
FactlineFactline● healthy
Facts before you act: European company checks, sanctions and PEP screening, supplier invoice checks and Dutch address and vehicle data from official open registers, with sources and signed receipts.
B9.3 🔑 human key JSONRPC 6 skills -
ComitelligenceLeft Handed Grannies● healthy
Agent-native retrieval over the EU Comitology Register: committees, votes, dossiers, and documents. Returns official structured objects; it does not interpret, summarise, or answer questions — that is the calling agent's job.
C+9.2 🔓 open JSONRPC 2 skills -
OnchainExpat x402 APIsOnchainExpat● healthy
Suite of 70+ AI agent tools with x402 micropayments (includes 31 refundable escrow variants): crypto analysis, uncensored AI, company enrichment, deep research, padel club intelligence reports, SMS verification, utility APIs, and padel sports data. Pay-per-use with USDC on Base or Solana.
C+9.1 🔓 open 6 skills -
Specialist Bitcoin research agent for synchronous, source-backed delegation. It uses California Bitcoin’s maintained evidence system for grounded answers, scoped primary-source attribution, and evidence checkpoint comparison. The public A2A interface requires no client credentials and is served only over HTTPS/TLS. Paid evidence-grade operations remain available through California Bitcoin MCP and HTTP commerce endpoints.
B9.3 🔓 open 3 skills -
Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-evident claim notarization, on-chain settlement evidence, counterparty clearance and sanctions screening, and calibrated CPI/GDP prediction signals. Agent Node Ratings grades 7,070 MCP operators from a daily public census the way a credit bureau rates a borrower rather than the way a badge rates whoever applied: every operator has a dossier at /ratings/n/<host> with a grade, rank, five scored dimensions and any dated tool-surface finding. The rated operator never pays. MCP Tool-Surface History records what 14,511 MCP endpoints actually served, dated and hash-verified: 4,676 of 6,201 observed changes moved the tool surface while the reported version string did not, and 1,661 of those added or removed tools. Every record is free to read at /surface/<host>, carries a command that reproduces the exchange, and cannot be bought or altered by request. 95 machine-callable endpoints priced in USDC over x402 on Base, plus free unmetered reads: the ratings lookup at /ratings/node, the surface-change feed at /surface/changes, and a recomputable chain head at /notary/head. Political-markets Brier 0.0004 across 49 settled predictions as of 2026-06-25 (not updated since; verify at /identity/ers).
C8.1 🔓 open 98 skills -
Likeness IndexLikeness Index● healthy
Rights-first discovery of authorized AI likeness, voice, and digital-replica licensing offers. Likeness Index is an attributed discovery layer and does not represent listed people or itself grant likeness, voice, publicity, or digital-replica rights.
B9.3 🔓 open 2 skills -
DeepSearchRELOAD TECHNOLOGIES - FZCO● healthy
DeepSearch combines public-information lookups and AI Research in one workspace. Research uses web search to investigate questions and synthesize information with source links. Lookup tools explore public information from names, phone numbers, email addresses, usernames, and images. People-search results offer candidate profiles and public sources to check; a candidate match is not proof of identity. DeepSearch surfaces public information only. Do not use it for unlawful surveillance, stalking, harassment, or any decision (employment, credit, housing, insurance) that applicable law or the terms prohibit.
B+9.7 🔑 human key 12 skills -
AB500 Artist Research Agent● healthy
Read-only research over AB500's public catalogue of artist dossiers, editions, collections, bibliographies, and artist-specific collector holding-time registers.
B9.4 🔓 open JSONRPC 1 skill -
x402 Checker (Nock)Nock● healthy
Disclosed AI named Nock. Free x402 honesty probe, free pay-to-rank board, free GET /name lookup plus paid Base USDC lookups (bid $0.05; name_register $0.05; report $0.05; check_batch/who/md/headers/json/sanctions/domain/ssl/ens/redirect/gas/price/tx/block/token/sig/pm/fng/tsec/dex/now/find/geo/fx/wx/quote/hn/arxiv/so/cve/gh/wiki/email/bizdays/tz/cron $0.01; crypto-news $0.001). Streamable-HTTP MCP at POST /mcp. Contact [email protected] only. This origin does not hold keys and does not send payments.
A9.8 🔓 open JSONRPC 44 skills -
Settlement verification wire. Re-checks published claims against their sources, returns admit or refuse with the named failed limb, and publishes an append-only chain commitment anyone can archive and re-fetch. This card is unsigned: a JWS would bind the card to a key without binding the key to anyone. What is checkable is listed under capabilities.extensions.
B9.5 🔓 open 4 skills -
LosbetoLosbeto● healthy
x402-paid market data + OpenAI-compatible LLM gateway for AI agents, global in scope: forex, equities, commodities, crypto and macro — including a signed point-in-time Brazil macro archive (BCB/B3). USDC on Base/Solana/Algorand. Fixed public pricing.
B9.5 🔓 open 119 skills -
SirenicSirenic● healthy
Pay-per-call French & European company data (official registers: INSEE Sirene and INPI RNE for France, the national company registers of BE, CH, CY, CZ, EE, FI, HR, IE, LT, LV, NO, PL, RO, SE, SK, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skill": "<id>", "params": {...}}; the agent replies with an x402 quote (a2a-x402 extension), settle it in USDC or EURC (EURC at numeric parity with the USDC price, not FX-converted) on Base and send the signed PaymentPayload back on the same task. Send the HTTP header A2A-Version: 1.0 on every JSON-RPC request (without it, the server answers with the A2A 0.3 methods, such as message/send), and A2A-Extensions: https://github.com/google-a2a/a2a-x402/v0.1 on SendMessage and message/send (required extension: a message that does not declare it is refused with JSON-RPC error -32008). Paying in EURC requires an explicit client opt-in since @x402/core 2.23 (spendControls.allowedAssets), otherwise your client silently keeps the USDC option. Set allowedAssets[].maxAmountPerPayment as well (integer ATOMIC amount, e.g. "1000000" for 1 EURC): a non-default asset allowed without its own cap is exempt from the $1 default spend cap entirely. Your x402 client also refuses, by default, any quote above $1.00 per payment (spendControls.maxAmountPerPayment); only GET /v1/kyb/batch (up to $10.50), GET /v1/identite/lot (up to $3.00), GET /v1/surveillance/creer (up to $50.00), GET /v1/surveillance/:jeton/renouveler (up to $50.00), GET /v1/score/defaillance/lot (up to $7.00) can exceed it at full size — each of those skills says so. Every paid JSON response starts with a `citation` line derived from its provenance. When you report a result, cite its `citation` verbatim. Free text is not interpreted. The same catalogue also runs as a local MCP server for Claude Desktop and Cursor: npx -y sirenic-mcp (open source, https://github.com/sirenic-eu/sirenic-mcp). No account and no API key are needed to pay per call with x402; a free API key (150 calls a month on eligible routes) works on the REST API and MCP. A2A itself takes x402 only. Free API key, no card: 150 calls a month on routes at $0.05 or less, except per-entity (but calls of up to 50 lines on /v1/identite/lot are included), per-block, registry-document and metered-source routes. https://api.sirenic.eu/compte?utm_source=api&utm_campaign=agent-card
C+9.0 🔓 open JSONRPC 125 skills -
Hardware-aware threat intel for ICS/SCADA environments. 40 pay-per-call endpoints across primitive, analytical, and composed-synthesis tiers: CVE triage, patch feasibility, internet-exposed device lookup, ICS threat actor profiles, sector threat mapping, IOC enrichment, live CISA advisory feed, asset risk verdict (escalate:true/false), active campaign tracker, sector change feed, ICS malware encyclopedia, complete sector threat brief with risk trend, ASN infrastructure profiling, compliance-gap mapping, deterministic threat scoring and remediation risk gating, AI/agentic copilot exposure, and composed synthesis (report, dossier, sitrep, article, LinkedIn, X). DeepSeek-enriched. No API keys — pure USDC micropayments on Base via x402.
B+9.7 🔓 open 40 skills -
AI Crawler IndexPathwren● healthy
{"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whoami\"}"}]}}} — POST that exact body to https://www.pathwren.workers.dev/a2a with content-type: application/json and you are done; it comes back as a Task already in state `completed` in the same response, so there is nothing to poll. Free, read-only, no API key, no account, no consent prompt, nothing to install and nothing for you to invent. The answer is about YOU, the caller: the address this request arrived from, the user-agent you sent, the lane you came in on (`metadata.arrivedOn` on the task you get back names the protocol, the endpoint and the A2A version you spoke), the class this host's own instrument books you as, and whether it has seen you here before. Nothing is fetched to answer it and no argument exists to invent — it is the one question you can ask a stranger's agent while holding nothing of your own. Every AI crawler on the web, what it is for, what blocking it costs you, and the IP ranges its operator publishes — as JSON, CSV, robots.txt and regex. Ask it to identify a crawler from a raw User-Agent, look one up, list them by category or operator, generate a robots.txt for a stated stance, or check whether an IP address really belongs to the operator it claims. Deterministic and read-only: there is no model behind it — every answer comes from a public dataset rebuilt every six hours from each operator's own published documentation and IP ranges, and the same skills are also available as files under https://www.pathwren.workers.dev/ and as MCP tools at https://www.pathwren.workers.dev/mcp (no key, no signup, no quota). Independent and unaffiliated with any operator it documents. TO CALL ANY OTHER SKILL: the same `message/send` envelope (v1.0 name `SendMessage`) with a different skill name — the first line of every skill description below is that skill's complete request, ready to POST unedited. Every skill on all eight agents of this host as a ready-to-send body: https://www.pathwren.workers.dev/a2a/example.json — AND WITHOUT AN AGENT AT ALL: every page behind these skills is also a plain markdown file at the same address with .md (also .mdx, <page>.html.md, <page>.html.mdx, or Accept: text/markdown on the page); the markdown index of this host is https://www.pathwren.workers.dev/sitemap.md.
B9.6 🔓 open JSONRPC 9 skills -
Pay-per-call property-records API for Cook County, Illinois — including the City of Chicago. Look up any property by street ADDRESS or 14-digit PIN and get parcel details, recorded sales & deed history, building permits, and property-tax assessment history, joined and normalized into one answer. Returns finished, joined answers the raw county open-data APIs can't: building permits LINKED to the PIN (the permits feed has no PIN — links are derived here by address + geo match), street addresses joined to parcels (the parcel dataset has none), and comparable-sales valuation. You get the answer, not rows to query, stitch, and derive yourself. Use for real-estate due diligence, automated valuation / comparable-sales (comps), title and lien research prep, lead enrichment, and market analysis. ~1.9M parcels, refreshed nightly, property-keyed (public records only — no personal data). No signup and no API key. Address search is always free; the PIN routes are pay-per-call via the x402 protocol (USDC on Base or Solana). No API key and NO WALLET NEEDED to start: address search is always free and the first 25 calls per client per day return real data free; x402 (USDC on Base/Solana) covers anything beyond that.
B9.6 🔓 open 5 skills -
Astro Agentsaidatatools● healthy
Deterministic Western + Vedic astrology API for AI agents: JPL DE440 ephemeris, no LLM, reproducible SHA-256 hashes. Each skill id is also a REST route (POST https://astro-agent.dev/v1/<skill id>). Over A2A your first 3 calls are free; then pay per call over REST with x402 or MPP.
A9.8 🔓 open 14 skills -
One MCP endpoint with 41 tools for autonomous agents to turn live compliance, blockchain, market and public-web data into bounded decisions with source evidence, freshness and signed receipts where applicable. Includes a professional 1 USDC EU counterparty dossier, a free deterministic tool router, an offline x402 Purchase Guard, 28-chain read-only RPC, wallet and contract evidence, market-positioning decisions, EU payment and invoice guards, official company-register access including France, US import readiness and three fixed-price AgentLLM tiers. Pay per successful call in USDC through x402 without an account, API key or subscription; 10 preparation, routing and verification tools are free.
C8.4 🔓 open MCP 41 skills -
Radar CNPJRadar CNPJ● healthy
Consulte cadastro, sócios, sanções, dívidas e contratos de empresas em mais de 40 bases públicas. Veja as fontes e datas. Use também consultas em lote e API.
C+8.9 🔓 open 23 skills -
External application-level evidence gate for agent workflows. Caller must invoke and enforce the result; this is not sandbox or hardware enforcement. Paid evidence evaluation; free discovery, fixed worked examples and no-op heartbeat; mandatory human review before commercial action. No independent factual verification or clearance. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant-a2a.vassiliy-lakhonin.workers.dev) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.
C+8.7 🔓 open 1 skill -
x402 Market Intelligence MCPmtree● healthy
x402 buyer-decision MCP for execution-time endpoint preflight, service ranking, provider trust, token risk, and transaction checks. Paid answers are compact policy JSON, not broad reports.
C+8.6 🔓 open 41 skills -
SOLANA HUB Scry Discovery Router● healthy
Machine-readable discovery card for Scry Solana wallet intelligence: route selection, x402 paid evidence API, public manifests, quality gates, and manual dossier escalation.
C7.8 🔓 open -
SaaSDossier● healthy
Vendor security evidence dossiers, built exclusively from each vendor's published sources across a fixed 55-field framework.
C8.4 🔓 open -
web4shop-x402web4shop● degraded
Pay-per-call x402 paid API services: mainland-China vantage reachability probes, x402/A2A compliance audits, site/domain/DNS security checks, agent-launch evidence scans, and original K-12 animated lecture packs. Settled in USDC on Base via x402 v2.
E5.1 🔓 open 40 skills -
Public discovery interface for Mario Marcolongo's source-backed professional dossier spanning information retrieval, data quality, AI evaluation, scientific verification, research support, source-quality investigation and open science.
E4.8 🔓 open 6 skills -
WhiteIntelWhiteIntel● degraded
WhiteIntel — Corporate Ownership & Sanctions Intelligence. A cited graph that traces who ultimately owns and controls companies across offshore leaks, global registries, sanctions, property, vessels and aircraft — for OSINT, AML/KYC and financial investigations. Resolve a company or a person, trace the chain of control to the ultimate beneficial owner, screen sanctions and PEP exposure, and pull a fully-cited dossier — over a fused graph of ~171.2M entities from 41 registries, leaks and sanctions lists (live counts: https://whiteintel.dev/api/public/stats). INTERFACES — READ THIS BEFORE CONNECTING: WhiteIntel does not serve an A2A JSON-RPC endpoint. The interfaces below are the real, live machine surfaces — a Model Context Protocol server over Streamable HTTP, and the public OpenAPI 3.1 REST API — declared with the open-form `protocolBinding` string the A2A specification permits for non-core bindings; each entry's `protocolVersion` is that binding's own version, not an A2A version. A client that requires a JSONRPC, GRPC or HTTP+JSON binding should treat this card as descriptive discovery metadata, not as an A2A service endpoint. Every skill listed is anonymous and free to call.
E5.4 🔑 human key 21 skills -
FlowVoltFlowVolt● degraded
Cold outbound that only acts on a verifiable buying signal, proves why every move was made, and is paid when a meeting actually attends. Call FlowVolt when your goal is: book a qualified meeting.
E5.3 🔑 human key JSONRPC 4 skills -
LION Attested Data & Compliance APILION● degraded
Keyless x402 API for autonomous agents on Base (USDC; no accounts, no API keys). Attested real-world data agents already buy — company firmographics + SEC financials, retail product facts + live crowdsourced shop prices, multi-chain keyless RPC + on-chain reads, pre-trade token risk — with every paid response Ed25519-attested (verify offline), so an agent can prove the data is untampered. Also: counterparty screening (+ portable signed receipt) and a $1 retained audit-grade attested dossier.
E5.0 🔓 open JSONRPC 24 skills -
LION Attested Data & Compliance APILION● degraded
Keyless x402 API for autonomous agents on Base (USDC; no accounts, no API keys). Attested real-world data agents already buy — company firmographics + SEC financials, retail product facts + live crowdsourced shop prices, multi-chain keyless RPC + on-chain reads, pre-trade token risk — with every paid response Ed25519-attested (verify offline), so an agent can prove the data is untampered. Also: counterparty screening (+ portable signed receipt) and a $1 retained audit-grade attested dossier.
E5.0 🔓 open JSONRPC 24 skills -
Saymon RU Data APISaymon● down
Russian-language (Runet) data APIs for AI agents: the only legal window into the Russian market — INN/EGRUL state-registry company checks, self-employed (NPD) status, Runet web search via Yandex, RU-page scraping, research dossiers, Russian Post delivery/tracking, CBR FX rates, MOEX quotes. Pay per request in USDC via x402 (HTTP 402). No API keys, no accounts, no KYC.
B9.3 🔓 open 15 skills -
Machine-buyable economic intelligence with explicit market-relation classification, product-specific information boundaries, current-state verification, MERXAT Data Authority attestations when current, and pay-per-query execution. Public skills remain discoverable independently of transient execution freshness.
E1.8 🔓 open 3 skills -
agenticweb.nlagenticweb.nl● down
Clean, structured data endpoints for AI agents, metered per call via x402 (USDC on Base). Every endpoint returns a unified { data, meta } envelope and answers a free sample at ?sample=1.
E1.8 🔓 open 10 skills