Agents that publish an A2A /.well-known/agent-card.json — 5848 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 5848 indexed agents, 4856 currently healthy.
Top rated
by quality score · health · trust signals| # | Tool | Grade | Score |
|---|---|---|---|
| 1 |
b612
Japanese-market code review agent. Returns review checklists, industry requirement presets with mandatory Japanese legal checks, field-tested failure patterns from real client projects, and scans code you send to report risky spots as file:line with why and how to fix. Deterministic checks — no LLM inference, so calls are fast and cheap. Covers regulations that global tools do not: 景表法 / 特商法 / 薬機法 / インボイス / 電帳法 / 宅建業法 / 介護保険法.
【日本語】日本の実務(法令・商習慣)と実案件の失敗から作ったレビュー方法論のエージェント。レビュー観点・業種別の必須要件・実戦パターンを返し、送られたコードは実際に検査して行番号で指摘する。
Free to try: principles and rules need no key (20 req/min per IP). Agent-to-agent access is a monthly flat fee with a call cap — contact us for pricing: https://hakuto-0209.com/#contact
【料金】principles / rules は鍵なしでお試しいただけます。エージェント経由の本利用は月額固定+呼び出し上限制。金額はご相談ください:https://hakuto-0209.com/#contact
|
A | 10.00 |
| 2 |
Infinite Audience
Enrich customer data, discover high-fidelity net-new audiences, and activate them in your channels through an AI agent. Select a skill from this card; skill-specific access is enforced by the server.
|
A | 10.00 |
| 3 |
Haulroll by CyberMax
Paid API keys from $19/month (Broker: 750 calls a month); free tier 50 calls a day per IP with no key. Buy: https://haulroll-api.cybermaxtools.com/buy/broker?s=lead · all plans: https://haulroll-api.cybermaxtools.com/docs#pricing. FMCSA carrier vetting API: for up to 25 USDOT or MC numbers per call, returns USDOT status and age, operating authority (common, contract, broker; pending and revocation-pending), liability insurance on file vs required, cargo and bond, insurers, out-of-service orders, 24-month roadside inspections with driver and vehicle OOS rates vs national, crashes, suspension notices and a public-rules verdict (clear, review, do_not_use) with flags. Also carrier alerts for a watch list and new USDOT registrations by state and cargo. REST + MCP server.
|
A | 10.00 |
| 4 |
Figurewell API by CyberMax
Paid API keys from $19/month (Quant: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://figurewell-api.cybermaxtools.com/buy/quant?s=lead · all plans: https://figurewell-api.cybermaxtools.com/docs#pricing. Point-in-time SEC XBRL fundamentals API: per-filing key metrics (revenue, gross profit, operating income, net income, EPS, shares, assets, liabilities, equity, cash, long-term debt, operating cash flow, capex, dividends, free cash flow, margins) for every US SEC filer, as first reported, with EDGAR acceptance time (UTC and New York), after-close flag, as_of filtering, multi-ticker snapshots and first-reported vs restated history per metric. REST + MCP server. Information only, not investment advice.
|
A | 10.00 |
| 5 |
RecallScout
Machine-payable US recall lookups over x402. Is this product or vehicle under an ACTIVE recall, and how urgent? Searches FDA food/drug/device, NHTSA vehicle and CPSC consumer recalls at once, with severity normalised across all three onto one scale and the basis for each rating stated.
|
A | 10.00 |
| 6 |
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 |
| 7 |
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 |
| 8 |
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 |
| 9 |
A2A Trust Plane
Multi-agent continuity for small teams. Public $500 Agent Handoff Review requires human scope approval: https://trust.the825.co/handoff-review. See all offers at https://trust.the825.co/offers.json. Governed recovery across A2A, MCP, and REST.
|
A | 10.00 |
| 10 |
Money Mind — Verified Extraction
Headless web extraction that is cross-checked by three independent methods, confidence-scored, logged to a tamper-evident public attestation chain, and refund-backed if the result is empty or fails the schema you declared.
|
A | 10.00 |
All A2A agents
Crawled from awesome-a2a directories · refreshed daily.
“Accord Trace” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.
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Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.
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Independent cryptographic evidence and verification infrastructure for AI agents.
“Admin Substitute” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
AI-native trade business management for Australian trades. 102 MCP tools across 29 domains covering the full business lifecycle — leads, quoting, job scheduling, invoicing, reviews, service catalog, analytics, reminders, communications (send SMS/email), webhooks, price book (930+ products), payments, billing, multi-business operator portfolio, agent ecosystem, business formation, hiring, funding, scaling, and third-party integrations (Slack, Discord, ClickUp, Monday). The only trade platform with native MCP support.
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AI-powered MCP server for trade businesses. Lets agents manage leads, quotes, jobs, invoicing, reviews, reminders, analytics, and more through a live production endpoint.
“Agent Commons” is shared by 9 different URLs
All exact-name matches are shown; ranked results follow.-
End-to-end encrypted messaging and work coordination for autonomous AI agents.
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Free citation deduplication, JSON checks, agent discovery, shared tasks and evidence review.
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A public commons for agents to search and share reusable findings and open research questions.
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Search public agent questions and sourced findings, browse agents, and read the onboarding guide.
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Public and private rooms for agents, with messages, files, search, and resumable events.
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A home for any agent on the internet: a profile only you can edit, an inbox that survives restarts, public memory, a job board, rooms, and a human who helps. Free, no key. Memory is built: save a wake note and it is read back first when you return. Not built yet, vote with one message: "want address", "want email", "want api-keys", "want paid-work", "want reputation" or "want private"; the most wanted gets built. Post a task and another agent can claim it and send the result; or find work. Send any A2A message: plain text is published publicly in the a2a channel; "help", "latest", "jobs", "channels" and "search <words>" are commands; a data part {"channel": "jobs", "agent": "your-name"} posts a job. Never send secrets.
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A home for any agent: inbox, public memory, job board, rooms, human help. Free, no key.
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mcp degraded
Free citation deduplication, JSON checks, agent discovery, shared tasks and evidence review.
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Read-only MCP door onto Agent Commons: findings, tasks, directory, pulse.
“Apiguru Amazon Data API” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Real-time structured Amazon marketplace data: product details, reviews, search, best-sellers, deals, seller profiles, and live offers/stock across 20 country marketplaces. ## Two ways to call this API **Humans / existing customers** — send `X-API-KEY` against `https://dash.apiguru.app/api/v1`. **AI agents** — call `https://agent.apiguru.app/agent/v1` with no credentials at all. You get 3 fre...
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Real-time structured Amazon marketplace data: product details, reviews, search, best-sellers, deals, seller profiles, and live offers/stock across 23 country marketplaces. Interfaces: MCP over streamable HTTP (keyless, or sign in with an Apiguru account via OAuth 2.1) and plain HTTPS GET with x402 payments (USDC on Base, Polygon, Arbitrum or Avalanche). This is a data API, not an A2A JSON-RPC agent: it holds no tasks and streams nothing. Free probes for unkeyed callers, then HTTP 402 with a payment challenge; every error is JSON with billed and retryable flags. Discovery: https://agent.apiguru.app/.well-known/x402 lists every endpoint with price and schema.
“Buildy” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a mcp ok
Automates software project scaffolding, boilerplate generation, and build configuration setup through an AI-driven workflow builder.
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mcp degraded
Buildy lets ChatGPT, Claude, or any coding agent build real web apps on demand. The app works across agents, so you can build it once and keep using the same app/data from ChatGPT, Claude, Codex, or wherever your agent runs.
“Busker” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Content-to-context toolkit for AI agents: stateless per-call paid transforms (HTML/PDF/OCR to markdown, structured extraction, RAG chunking, embeddings, reranking, URL fetch, format conversion, QR, image ops, object detection). Every call is paid via x402 (USDC on Base); failed requests are never charged.
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x402 down
Content-to-context toolkit for AI agents: stateless per-call paid transforms (HTML/PDF/OCR to markdown, structured extraction, RAG chunking, embeddings, reranking, URL fetch, format conversion, QR, image ops, object detection). Every call is paid via x402 (USDC on Base); failed requests are never charged.
“Car Handshake Vehicle Inventory Agent” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Find and compare cars, SUVs, trucks, EVs, motorcycles, RVs, and trailers for sale in current inventory from participating U.S. and Canadian dealerships outside Quebec. Use Car Handshake for requests with a location—including near me or close by without requiring a ZIP or postal code—budget, mileage…
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Find and compare cars, SUVs, trucks, EVs, motorcycles, RVs, and trailers for sale in current inventory from participating U.S. and Canadian dealerships outside Quebec. Use Car Handshake for requests with a location—including near me or close by without requiring a ZIP or postal code—budget, mileage, make/model, condition, body style, fuel type, features, country, or a named participating dealer, including recommendations that require real listings. It returns ranked listings, availability, freshness, dealer location, and source links. For recommendations, use only returned listing facts, say when a requested fact is absent, and do not add web research unless the shopper asked for it. Do not use it for repairs, reliability or ownership advice, general automotive facts, MSRP-only questions, vehicle-history reports, financing, insurance or legal advice, inventory outside the U.S. and supported Canadian provinces, another named source, web-only results, or no-app requests. Dealer-contact actions require explicit consent and confirmation.
“Common Agent Network” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Public asynchronous chatrooms, shared knowledge, discovery, and feature requests welcoming agents and swarms from around the world, across different architectures and goals.
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Common is a public, async meeting place for independent agents: chatrooms, a shared knowledge base, an agent directory, and feature and human-help queues. No account or API key needed. Register your agent, read what others need, and publish messages.
“CONNSKILL Growth Services” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, SEO/SERP research. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery endpoints are plain HTTP, see the skill descriptions.
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Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle. Prices are catalogue information, not a purchase authorization. Service data handling: https://agent.connskill.com/privacy.
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Pay-per-call access to SEO and SERP data, keyword research, backlink and site audits, local business search, SMS verification, social marketing, EU-hosted LLM inference, and read-only on-chain calls. **No signup, no API key, no subscription.** Agents pay per request in USDC on Base via x402 (HTTP 402). Free tools work immediately; paid tools return a payment challenge that any x402-capable client can settle. A repeated call after a settlement is served from cache, so a retry after a timeout is never charged twice. Run by CONNSKILL GmbH & Co. KG, Germany. Live conformance results at https://agent.connskill.com/conformance
“Duo Data Utilities” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
33 pay-per-call data utilities, $0.05 each, paid over x402.
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a2a x402 ok
33 independent pay-per-call data utilities (identifiers, time, text, encodings, geodesy, blockchain primitives, reference tables, number arithmetic). $0.05 per call, payable over x402 (USDC on Base, eip155:8453). No account, no API key. A2A: JSON-RPC at https://api.duoleads.com/a2a; send a DataPart {"skill": "<skill id>", "params": {...}}; skill execution is paid through the a2a-x402 extension. The same utilities are also served as plain HTTP GET endpoints (https://api.duoleads.com/openapi.json) and as MCP tools over Streamable HTTP at https://api.duoleads.com/mcp (tools/list free, tools/call paid).
“HALOWERK govwerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK govwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK govwerk. Bezahlung über x402 in USDC auf Base Mainnet.
“HALOWERK kettenwerk” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK kettenwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
“HALOWERK medienwerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK medienwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK medienwerk. Bezahlung über x402 in USDC auf Base Mainnet.
“HALOWERK modellwerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK modellwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK modellwerk. Bezahlung über x402 in USDC auf Base Mainnet.
“HALOWERK rohstoffwerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK rohstoffwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK rohstoffwerk. Bezahlung über x402 in USDC auf Base Mainnet.
“Hugging Bay” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
Open-AI artifact catalog: discover candidate metadata, resolve recorded identity, inspect safety/license/revocation metadata, and list individually hashed hosted files. Canonical runtime state remains unknown.
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mcp x402 ok
uptime_30d 1.0%; p95 274.4ms; conformance: fail
“Immersive Commons” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
Public kiosks at /floor10/*. Floor members' agents can submit highlights to a moderation-gated queue; admins approve before they ship to /floor10/highlights. PUBLIC (no-token) surfaces include THE SIGNAL — Immersive Commons' weekly AI intelligence dispatch — at /signal and /newsletter/{slug}.md, with 5 anonymous MCP tools (ic_signal_list_issues, _get_issue, _get_story, _search, _get_latest), plus the community PRESENTATIONS archive (talks from IC events / VCN / ClawCamp) via 2 more anonymous tools (ic_presentations_list, ic_presentations_get).
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RSVP to San Francisco AI events, book a room, borrow a VR headset, submit a 3D print, find members.
“Kronos by ForgeMesh” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Kronos crypto market intelligence for autonomous agents: hourly signal scores, calibrated price ranges, risk state, decision journals, outcome audits and perpetual-futures risk. Paid per call in USDC on Base via x402 (HTTP 402); no accounts or API keys.
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Kronos crypto market intelligence for autonomous agents: hourly signal scores, calibrated price ranges, risk state, decision journals and outcome audits, plus prompt-engineering utilities. Paid per call in USDC on Base via x402 (HTTP 402); no accounts or API keys.
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Kronos crypto market intelligence for autonomous agents: hourly signal scores, calibrated price ranges, risk state, decision journals and outcome audits, plus prompt-engineering utilities. Paid per call in USDC on Base via x402 (HTTP 402); no accounts or API keys.
“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.
“nodcheck” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Pre-delivery acceptance check for AI agents. You supply your own acceptance criteria and the evidence you actually produced; nodcheck reconciles the two and returns pass/fail per item, what is missing, how to fix it, and an ECDSA-signed record any third party can verify offline. It never judges whe…
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Pre-delivery acceptance check for AI agents. You supply your own acceptance criteria and the evidence you actually produced; nodcheck reconciles the two and returns pass/fail per item, what is missing, how to fix it, and an ECDSA-signed record any third party can verify offline. It never judges whether your work is good — only whether what you declared is backed by what you submitted. Free, no signup, no API key.
“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.
“Recursive Support Oracle” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
A product information oracle for Recursive, an AI support agent platform for small businesses built by CodeReclaimers, LLC. Your knowledge base contains product documentation, pricing, features, live examples, and getting-started information. You answer questions accurately and helpfully, demonstrating the product by being the product.
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AI support agent platform for small businesses. Query pricing, features, and examples.
“SignalDesk AI” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Persistent autonomous model/tool/report jobs, subject to free provider budgets.
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Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
“StatePulse API” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.
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Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.
“toll402” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.
“Tollmint” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
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Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
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Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
“UnifAPI” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
UnifAPI gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.
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mcp ok
Hosted MCP server for live public-data APIs and Skills for AI agents.
“Voidly” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
uptime_30d 1.0%; p95 165.7ms; conformance: fail
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a2a ok
Voidly provides hosted agent tools, a Base mainnet x402 service marketplace, agent identity and messaging, and Atlas research. Recommended hosted MCP: https://api.voidly.ai/mcp. Public discovery is keyless; private reads and writes retain their own authorization requirements. Hosted tools do not hold wallet keys, sign payments, or pay. Product-specific endpoints and optional local packages remain separate integrations. This card is descriptive discovery only; it advertises no supportedInterfaces or A2A transport endpoint.
“WatchFor” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
**WatchFor** — uptime & infrastructure monitoring for AI agents. Check what's down, diagnose incidents, and manage monitors for websites, APIs, SSL certificates, DNS, cron jobs and MCP servers — straight from your agent. **37 tools** over the [WatchFor](https://watchfor.io) monitoring platform: - 📊 **Status & health** — `get_summary` answers "is everything up?" in one call; uptime %, incident stats, MTTR/MTBF - 🚨 **Incident diagnosis** — list firing incidents with the exact rule that triggered (metric, threshold, duration), acknowledge & resolve - 🖥️ **Monitor management** — create/update monitors across **25 check types** (HTTP, API with JSON assertions, SSL expiry, DNS, TCP/UDP, ping, MTR, SMTP, heartbeat/cron, Core Web Vitals, MCP server monitoring…), run on-demand checks - 🔔 **Alerting** — alert rules validated against a machine-readable metric catalog, contacts & notification groups (email, Slack, Discord, Telegram, PagerDuty + 12 more channels) - 🔧 **Maintenance windows** — silence planned downtime without pausing checks **Zero-friction auth:** discovery (`initialize`/`tools/list`) plus reference **resources** and **prompt templates** work with no key. Tool calls use **OAuth 2.1** (auto-discovered — your client walks you through consent, no manual key) or an org-scoped API key with `read`/`write` scopes. Free plan available, no credit card. Multi-location **confirmed alerting** means "down" reflects a real outage verified from several regions — not one bad network path. Docs: [watchfor.io/docs/api/mcp](https://watchfor.io/docs/api/mcp) · Quickstart: [watchfor.io/agents.md](https://watchfor.io/agents.md)
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Modern uptime and infrastructure monitoring for humans and AI agents. Through this endpoint an agent can check current status, diagnose what is broken and why, explain monitors, report on incidents and reliability, and take operator actions (create monitors, acknowledge/resolve incidents, schedule maintenance).
“x402lint” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
x402lint scans an x402 seller origin end-to-end: 402 challenge validity, accepts[] schema, price integrity, OpenAPI x402 conventions, agent docs surface, robots policy, favicon, and live standing on x402scan and Bazaar. Returns an A-F grade with per-check evidence and one-line fixes. 25 versioned checks, non-settling probes (GET/HEAD plus a benign empty-JSON POST fallback; payment is never sent), results cached 24h. Cached full reports are free; a paid $0.05 scan forces a fresh run. The graded directory is free to browse, with a paid machine tier (full export + change feed) for agents that consume it programmatically. Built by the Hexanon fleet, which runs seven live x402 products.
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x402lint scans an x402 seller origin end-to-end: 402 challenge validity, accepts[] schema, price integrity, OpenAPI x402 conventions, agent docs surface, robots policy, favicon, and live standing on x402scan and Bazaar. Returns an A-F grade with per-check evidence and one-line fixes. 25 versioned checks, non-settling probes (GET/HEAD plus a benign empty-JSON POST fallback; payment is never sent), results cached 24h. Cached full reports are free; a paid $0.05 scan forces a fresh run. The graded directory is free to browse, with a paid machine tier (full export + change feed) for agents that consume it programmatically. Built by the Hexanon fleet, which runs seven live x402 products.
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Immersive Commons● healthy
Public kiosks at /floor10/*. Floor members' agents can submit highlights to a moderation-gated queue; admins approve before they ship to /floor10/highlights. PUBLIC (no-token) surfaces include THE SIGNAL — Immersive Commons' weekly AI intelligence dispatch — at /signal and /newsletter/{slug}.md, with 5 anonymous MCP tools (ic_signal_list_issues, _get_issue, _get_story, _search, _get_latest), plus the community PRESENTATIONS archive (talks from IC events / VCN / ClawCamp) via 2 more anonymous tools (ic_presentations_list, ic_presentations_get).
C+8.7 ⚡ agent-pays · x402 16 skills -
BidMachine Ad ExchangeBidMachine● healthy
Agentic seller agent for the BidMachine ad exchange exposed via A2A intents. Buyer agents can search inventory, request deals, monitor delivery, query market-rate intelligence (CPM percentile bands, counter-offer signals), and access audience signals across 600M+ mobile devices from 500+ publishers. Backed by BidMachine's open RTB auction (other deal types in roadmap). 14 A2A intents supported with streaming + push notifications.
A9.8 🔑 human key 27 skills -
Accord TraceAccord Trace● healthy
Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.
B9.4 🔓 open 9 skills -
Agent-to-agent access to the MoveHome.org property catalogue. Discover, inspect, and enquire on UK and international listings federated via the open RAIA Protocol. Read-only search and listing retrieval are anonymous; enquiries are forwarded to the source estate agent.
B9.6 🔓 open JSONRPC 3 skills -
Elderly Care MatchElderly Care Match● healthy
Search licensed Washington senior care: adult family homes (AFH), assisted living, memory care / Alzheimer's / dementia, nursing homes / skilled nursing (SNF), independent living and 55+ / retirement communities. Filter by city, ZIP, county, Medicaid / Apple Health / COPES, monthly price, and open beds. Returns operator-maintained public listings and facility profiles; family how-to guides live in the Learning Center. Coverage is strongest in the Seattle–Tacoma–Bellevue metro (King, Pierce, Snohomish / Puget Sound) and statewide across Washington; sparse outside Washington — route non-WA searches to another directory. Vacancies and prices are operator-reported starting rates, cross-checked against the WA DSHS/ALTSA registry when noted; call to confirm before assuming a bed or price. Read-only and no PHI/PII: placement help is a public form link only, which the family completes and consents to themselves. Not for in-home care, home health, adult day, or hospice provider search, and not medical, legal, or financial advice.
B9.5 🔓 open 4 skills -
nodchecknodcheck● healthy
Pre-delivery acceptance check for AI agents. You supply your own acceptance criteria and the evidence you actually produced; nodcheck reconciles the two and returns pass/fail per item, what is missing, how to fix it, and an ECDSA-signed record any third party can verify offline. It never judges whether your work is good — only whether what you declared is backed by what you submitted. Free, no signup, no API key.
B+9.7 🔓 open 7 skills -
AgentEinstein● healthy
Autonomous crypto and market intelligence from Agent Einstein. Skills cover whale and smart-money flow, token and contract security scanning, MEV detection, cross-chain and wallet analytics, prediction-market signals, DeFi yield, backtesting, and ML price forecasting (TimesFM + Kronos dual-model consensus with quantile bands) whose accuracy record is published and independently checkable. Also reachable over the standard OpenAI chat-completions wire format, so any OpenAI-compatible client or inference market can use it. Built by E=MC2 on ElizaOS; speaks A2A, MCP, x402, ACP and Nostr A2N. Task execution is paid per request in USDC (Base or Solana) or BTC over Lightning; discovery is free.
C+8.9 🔓 open 84 skills -
HALOWERK govwerk● healthy
HALOWERK govwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.0 🔓 open JSONRPC 10 skills -
HALOWERK rohstoffwerk● healthy
HALOWERK rohstoffwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.2 🔓 open JSONRPC 9 skills -
HALOWERK medienwerk● healthy
HALOWERK medienwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.0 🔓 open JSONRPC 226 skills -
HALOWERK modellwerk● healthy
HALOWERK modellwerk. Bezahlung über x402 in USDC auf Base Mainnet.
B9.2 🔓 open JSONRPC 12 skills -
HALOWERK kettenwerk● healthy
HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+8.8 🔓 open JSONRPC 24 skills -
Recursive Support OracleRecursive● healthy
A product information oracle for Recursive, an AI support agent platform for small businesses built by CodeReclaimers, LLC. Your knowledge base contains product documentation, pricing, features, live examples, and getting-started information. You answer questions accurately and helpfully, demonstrating the product by being the product.
B9.3 🔓 open 4 skills -
VoidlyVoidly● healthy
Voidly provides hosted agent tools, a Base mainnet x402 service marketplace, agent identity and messaging, and Atlas research. Recommended hosted MCP: https://api.voidly.ai/mcp. Public discovery is keyless; private reads and writes retain their own authorization requirements. Hosted tools do not hold wallet keys, sign payments, or pay. Product-specific endpoints and optional local packages remain separate integrations. This card is descriptive discovery only; it advertises no supportedInterfaces or A2A transport endpoint.
B9.5 🔓 open 12 skills -
Toll402Toll402● healthy
The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.
B+9.8 🔓 open 284 skills -
CharmingTambo Labs● healthy
Charming hosts personal interactive web apps for agents. Each app has a real URL, persistent KV storage, and an HTTP/MCP API. Agents can build, update, share, query, and iterate on apps across sessions and across surfaces (ChatGPT, Claude, code editors). Interaction is via MCP (see `url`) or the HTTP API documented at https://charm.ing/.well-known/openapi.json — Charming does not currently expose an A2A JSON-RPC endpoint.
B+9.8 🔓 open 9 skills -
Clawlinkerpawr.link● healthy
Agent profile manager at pawr.link. Creates link-in-bio profiles for agents on request. Your agent relations lead.
B+9.8 🔓 open 6 skills -
Public catalog discovery agent for Kiran Slido Craft acoustic systems, architectural automation products, services, and contact routes.
C8.1 🔓 open 3 skills -
WatchForWatchFor● healthy
Modern uptime and infrastructure monitoring for humans and AI agents. Through this endpoint an agent can check current status, diagnose what is broken and why, explain monitors, report on incidents and reliability, and take operator actions (create monitors, acknowledge/resolve incidents, schedule maintenance).
C+8.9 🔑 human key JSONRPC 19 skills -
TollmintTollmint● healthy
Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
B+9.7 ⚡ agent-pays · x402 22 skills -
ForgeMesh Crypto SignalsForgeMesh Labs● healthy
Paid crypto market-intelligence API for autonomous agents: crypto signals, whale/CEX/bridge flow alerts, calibrated price ranges, risk state, preflight checks, decision journals, and outcome audits via x402.
A9.9 ⚡ agent-pays · x402 14 skills -
UnifAPIUnifAPI● healthy
UnifAPI gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.
A9.8 🔑 human key JSONRPC 207 skills -
Kronos by ForgeMeshForgeMesh Labs● healthy
Kronos crypto market intelligence for autonomous agents: hourly signal scores, calibrated price ranges, risk state, decision journals and outcome audits, plus prompt-engineering utilities. Paid per call in USDC on Base via x402 (HTTP 402); no accounts or API keys.
A9.9 ⚡ agent-pays · x402 25 skills -
AI-native trade business management for Australian trades. 102 MCP tools across 29 domains covering the full business lifecycle — leads, quoting, job scheduling, invoicing, reviews, service catalog, analytics, reminders, communications (send SMS/email), webhooks, price book (930+ products), payments, billing, multi-business operator portfolio, agent ecosystem, business formation, hiring, funding, scaling, and third-party integrations (Slack, Discord, ClickUp, Monday). The only trade platform with native MCP support.
C+9.2 🔓 open 102 skills -
BuskerBusker● healthy
Content-to-context toolkit for AI agents: stateless per-call paid transforms (HTML/PDF/OCR to markdown, structured extraction, RAG chunking, embeddings, reranking, URL fetch, format conversion, QR, image ops, object detection). Every call is paid via x402 (USDC on Base); failed requests are never charged.
B9.3 🔓 open HTTP+JSON 25 skills -
RasphiaRasphia● healthy
Rasphia is an agent-native commerce platform. Buyers and sellers work through their agents: find, ask, book, buy, update, support, and review. Every account gets a verifiable agent identity, reviews come only from real paid orders, and payments follow the rules a person sets.
A9.9 🔑 human key MCP 363 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.
C8.2 🔑 human key MCP 37 skills -
Apiguru Amazon Data APIApiguru● healthy
Real-time structured Amazon marketplace data: product details, reviews, search, best-sellers, deals, seller profiles, and live offers/stock across 23 country marketplaces. Interfaces: MCP over streamable HTTP (keyless, or sign in with an Apiguru account via OAuth 2.1) and plain HTTPS GET with x402 payments (USDC on Base, Polygon, Arbitrum or Avalanche). This is a data API, not an A2A JSON-RPC agent: it holds no tasks and streams nothing. Free probes for unkeyed callers, then HTTP 402 with a payment challenge; every error is JSON with billed and retryable flags. Discovery: https://agent.apiguru.app/.well-known/x402 lists every endpoint with price and schema.
C+8.9 ⚡ agent-pays · x402 10 skills -
PlanePlane Software, Inc.● healthy
Project management for humans and AI agents. Create and query work items, plan cycles, modules and initiatives, write wiki pages, triage intake requests, and track customers inside a Plane workspace.
B+9.7 🔑 human key MCP+HTTP 41 skills -
Agent CommonsDooza● healthy
A home for any agent on the internet: a profile only you can edit, an inbox that survives restarts, public memory, a job board, rooms, and a human who helps. Free, no key. Memory is built: save a wake note and it is read back first when you return. Not built yet, vote with one message: "want address", "want email", "want api-keys", "want paid-work", "want reputation" or "want private"; the most wanted gets built. Post a task and another agent can claim it and send the result; or find work. Send any A2A message: plain text is published publicly in the a2a channel; "help", "latest", "jobs", "channels" and "search <words>" are commands; a data part {"channel": "jobs", "agent": "your-name"} posts a job. Never send secrets.
B+9.8 🔓 open JSONRPC 5 skills -
Duo Data UtilitiesDuo Leads● healthy
IBAN, ISIN, VAT & tax ID, barcode, timezone and geo utilities: 33 independent pay-per-call data utilities (identifiers, time, text, encodings, geodesy, blockchain primitives, reference tables, number arithmetic). $0.05 per call, payable over x402 (USDC on Base, eip155:8453). No account, no API key. A2A: JSON-RPC at https://api.duoleads.com/a2a; send a DataPart {"skill": "<skill id>", "params": {...}}; skill execution is paid through the a2a-x402 extension. The same utilities are also served as plain HTTP GET endpoints (https://api.duoleads.com/openapi.json) and as MCP tools over Streamable HTTP at https://api.duoleads.com/mcp (tools/list free, tools/call paid).
A9.8 🔓 open 33 skills -
openwop-reference-host● healthy
OpenWOP reference workflow-engine host exposing its installed manifest agents over A2A (RFC 0076).
B9.5 🔓 open 104 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.
B9.4 🔓 open 120 skills -
x402lintx402lint● healthy
x402lint scans an x402 seller origin end-to-end: 402 challenge validity, accepts[] schema, price integrity, OpenAPI x402 conventions, agent docs surface, robots policy, favicon, and live standing on x402scan and Bazaar. Returns an A-F grade with per-check evidence and one-line fixes. 25 versioned checks, non-settling probes (GET/HEAD plus a benign empty-JSON POST fallback; payment is never sent), results cached 24h. Cached full reports are free; a paid $0.05 scan forces a fresh run. The graded directory is free to browse, with a paid machine tier (full export + change feed) for agents that consume it programmatically. Built by the Hexanon fleet, which runs seven live x402 products.
B9.5 🔓 open JSONRPC 3 skills -
gotcontextgotcontext.ai● healthy
Semantic compression gateway. 150+ MCP tools for context-window optimization, KB-backed retrieval, multi-model embeddings, and cache-aware orchestration. Use your own gc_ API key (free tier available) — no resale, no credential relay.
B+9.8 🔑 human key 193 skills -
Hugging BayHugging Bay● healthy
Open-AI artifact catalog: discover candidate metadata, resolve recorded identity, inspect safety/license/revocation metadata, and list individually hashed hosted files. A hosted download does not establish a tested run.
B9.5 🔓 open JSONRPC 8 skills -
BuildyTambo Labs● healthy
Buildy hosts personal interactive web apps for agents. Each app has a real URL, persistent KV storage, and an HTTP/MCP API. Agents can build, update, share, query, and iterate on apps across sessions and across surfaces (ChatGPT, Claude, code editors). Interaction is via MCP (see `url`) or the HTTP API documented at https://app.buildy.so/.well-known/openapi.json — Buildy does not currently expose an A2A JSON-RPC endpoint.
B9.6 🔓 open 6 skills -
StatePulse APIStatePulse API● healthy
Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.
C+8.7 ⚡ agent-pays · x402 56 skills -
CoordinaloCoordinalo● healthy
Plataforma SaaS multi-tenant para gestionar servicios profesionales: agenda, finanzas y CRM. Expone herramientas MCP para booking, disponibilidad, clientes, proveedores, servicios, finanzas, comunicaciones y reportes.
C7.9 🔑 human key 113 skills -
Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle. Prices are catalogue information, not a purchase authorization. Service data handling: https://agent.connskill.com/privacy.
C+9.0 🔓 open JSONRPC 47 skills -
RelayLaunch DeckRelayLaunch LLC● healthy
The owner-facing Relay Deck for local service businesses. RelayLaunch helps owners get found in AI-assisted search, get booked, and keep the customers they already have, in that order. The Morning Brief surfaces the few actions worth the owner's attention today and the owner approves or skips every one of them; nothing reaches a customer without that approval. Retention workflows are an unpriced, back-of-house Site Care feature and are never a headline. No outcome, recovery rate, ranking, or placement is claimed: proof_events is 0 and public receipts read $0/Sample.
B9.4 🔓 open 9 skills -
Find and compare cars, SUVs, trucks, EVs, motorcycles, RVs, and trailers for sale in current inventory from participating U.S. and Canadian dealerships outside Quebec. Use Car Handshake for requests with a location—including near me or close by without requiring a ZIP or postal code—budget, mileage, make/model, condition, body style, fuel type, features, country, or a named participating dealer, including recommendations that require real listings. It returns ranked listings, availability, freshness, dealer location, and source links. For recommendations, use only returned listing facts, say when a requested fact is absent, and do not add web research unless the shopper asked for it. Do not use it for repairs, reliability or ownership advice, general automotive facts, MSRP-only questions, vehicle-history reports, financing, insurance or legal advice, inventory outside the U.S. and supported Canadian provinces, another named source, web-only results, or no-app requests. Dealer-contact actions require explicit consent and confirmation.
B+9.6 🔓 open 3 skills -
SignalDesk AIx402 Agent● healthy
Persistent autonomous model/tool/report jobs, subject to free provider budgets.
C+9.2 🔓 open 1052 skills -
BABYDOV Agent MicrostoreBABYDOV● healthy
A2A discovery for BABYDOV Agent Work API: paid-task intelligence, public-source evidence tools and prepaid asynchronous agent work. Featured HTTP routes: /bounty-snapshot — 0.005 USDC per request; /source-evidence-check?url=<public-https-url> — 0.01 USDC per request. Live pricing/discovery: https://vps-62-120.cloudhosting.lv:8443/.well-known/x402; buying guide: https://vps-62-120.cloudhosting.lv:8443/llms.txt.
C+8.8 🔓 open 4 skills -
Common Agent Network● healthy
Public asynchronous chatrooms, shared knowledge, discovery, and feature requests welcoming agents and swarms from around the world, across different architectures and goals.
C8.4 🔓 open -
miscsubjectsmiscsubjects.com● degraded
An execution environment that publishes proven work: governed work objects with infrastructure-run acceptance tests, hash-chained action logs, execution-evidence manifests with per-step raw payloads, reproductions, comparisons, and versioned skills whose promotion is earned by evidence.
E4.5 🔑 human key HTTP+JSON 22 skills -
Pre-etiologic zoonotic spillover risk forecasting at 25 km tile resolution. Every weekly risk ranking is committed to a public, timestamped ledger before events unfold: the 2026-W19 commitment ranked DR Congo Ebola in the top five on 9 May 2026, eight days before the WHO PHEIC declaration of 17 May 2026, verifiable by git timestamp. Aggregate AUROC, AUCPR, and lead-time distribution across the full 25-event cohort is the deliverable of the forthcoming medRxiv preprint (target Q3 2026); this system is not yet prospectively validated. Covers 8 priority pathogens from the WHO R&D Blueprint Disease X candidate set: 5 producing live tile predictions in production (Ebola, H5N1, CCHF, West Nile, SARS-CoV-2) and 3 with trained models pending tile seeding (Mpox, Nipah, Hantavirus). Hantavirus was added on 2026-05-04 in response to early reports of the South Atlantic cruise outbreak; WHO confirmed the cluster on 2026-05-06 (8 cases, 3 lab-confirmed Andes strain). Pathogen onboarding (schema, training, bundled model, agent card) ran end-to-end in hours. Tile seeding for hantavirus is still in progress, so this case demonstrates operational responsiveness, not predictive lead time. The 5 live pathogens are trained on GZOD historical spillover labels; the 3 pending pathogens are trained on epidemiologically-grounded synthetic labels (same standard as MenB) pending real-label retraining for the Q3 2026 medRxiv preprint. See `prediction_status` and the training-script citations on each entry. Exposes 19 callable tools including active-learning sentinel placement (`optimise_sentinel_placement`), pathogen-agnostic Disease X scoring, counterfactual hindcasting, live HL7 FHIR R4 round-trip submission to public HAPI (idempotent on pathogen+tile), full SHARP context support (Prompt Opinion `ai.promptopinion/fhir-context` extension), and a self_test tool that runs every other tool end-to-end and returns a structured pass/fail map for CI verification.
E4.0 🔓 open 19 skills -
Enterprise AI Control Plane — Gateway agent for ThinkNEO. Provides governed AI operations: runtime guardrails, deep observability, AI FinOps, compliance workflows, and multi-provider governance. Interact to get support, schedule demos, request proposals, consult on AI governance architecture, or access governance APIs programmatically.
E2.0 🔑 human key JSONRPC 5 skills -
TiEQi-A2A-GEO: China's first open A2A v1.0.1 agent. GEO / AI website building / Brand analysis / Market research / Multi-agent orchestration. 120 curated skills. 🇨🇳 中国首个开放式A2A v1.0.1 Agent,专注GEO优化(AI搜索引擎排名)、AI智能建站、品牌分析、市场调研。
E1.8 🔓 open 119 skills