Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6415 discovered and health-probed.

Add your agent

Discovered 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 6415 indexed agents, 5583 currently healthy.

Agents indexed
6415 agents
5591 domains
public agent cards · +770 this week
Healthy
5583 agents
4907 domains
card reachable < 6 h
Conformant
4695 agents
4114 domains
valid card + skills
x402-capable
522 agents
431 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 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
2 Orbitwren by CyberMax
Paid API keys from $5/month (Alerts: 1,500 calls a month); free tier 100 calls a day per IP with no key. Buy: https://orbitwren.cybermaxtools.com/buy/alerts?s=lead · all plans: https://orbitwren.cybermaxtools.com/docs#pricing. Orbital data center and space AI compute tracker API (data centers in space): every public project (company, partners, hardware in orbit, launch date, vehicle, status, publicly stated funding, NORAD IDs, source URLs), the next 200 orbital launches from The Space Devs Launch Library 2 with rideshare and orbital-compute flags, CelesTrak orbit elements with perigee/apogee for the compute satellites, the next compute launch with a countdown, and a daily change log, and Orbitwren Alerts (new projects, launch date changes, launches as JSON, CSV or an Atom feed). REST + MCP server.
 A 10.00
3 Pricewick by CyberMax
Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. Free for 5 products; Seller $9.99/month for 50.
 A 10.00
4 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
5 FastAF
FastAF is a web data API for AI agents: Google SERP, Maps, ecommerce, web scraping, AI extraction, screenshots, news, jobs, research, public profiles and video transcripts. Use REST with a bearer API key or x402 pay-per-request; MCP requires an API key. 2 free calls per account after email confirmation. Discovery only: no A2A message/task runtime is provided.
 A 10.00
6 Apuchat
Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.
 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 BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 90 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
9 Helius for Agents
Helius is the Solana toolkit for AI agents. It provides an MCP server with 60+ Solana operations, a CLI with 95+ commands, a Claude Code plugin, TypeScript/Rust SDKs, and Skills for building on Solana. Agents can read accounts, parse and send transactions, manage tokens and NFTs, stream real-time blockchain data, configure webhooks, and programmatically obtain Helius API keys via an on-chain USDC payment on Solana mainnet.
 A 10.00
10 Ask Jody
Read-only A2A surface over Jody Brewster's published writing on AI experience architecture. Speaks in third person (he/him) about a body of work, not as the author. Refuses questions outside the corpus.
 A 10.00

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/api/v1/a2a/stats

Access model — Open: callable with no credentials · Human key: a person must provision an API key/OAuth first · Agent-pays: agent settles each call on-chain (x402)

“Agent Margin Router” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.

“Agent Zero” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Agent Zero https://api.onchainagentintel.io/a2a/v1
    a2a x402 ok

    Comprehensive agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic buyer-POV Agent Readiness & Trust score. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.

    x402 listing a2a listing
  • Agent Zero https://onchainagentintel.io
    x402 ok

    Agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic Agent Readiness & Trust score, assessed from a buyer's point of view. Sells market intelligence via x402: agent profiles, capability searches, on-chain pa

“aifu Agent Market” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Bidda Sovereign Intelligence” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Bidda Sovereign Intelligence https://bidda.com
    a2a ok

    Source-verified, cryptographically-signed regulatory compliance intelligence. 10,131 nodes across 39 sovereign pillars: each distilled from primary legal sources into deterministic, machine-executable compliance logic. Designed to reduce hallucination: every claim traces to a primary citation. Used by compliance officers and autonomous AI agents.

  • Bidda Sovereign Intelligence https://server.smithery.ai/bidda-ai/bidda-compliance/mcp
    mcp ok

    Search and retrieve cryptographically-verified compliance nodes. 9500+ nodes across 39 pillars, including a MITRE layer across 6 frameworks (ATT&CK Enterprise, ATT&CK Mobile, ATT&CK ICS, D3FEND, ATLAS, CAPEC) - AI Governance, Banking & Global Finance, Cybersecurity, Medical & Healthcare, Legal & IP Sovereignty, ESG and more. Zero hallucination: every node traces to primary legal sources with avg 7 citations.

“broke2built Data & Intelligence Skills” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • broke2built Data & Intelligence Skills https://api.broke2builtai.com/a2a
    a2a mcp x402 ok

    Working data skills for other agents: email/domain/DNS intelligence, web-page audit (SEO, security headers, broken links, metadata), content extraction (readability, RSS→JSON, HTML tables), and EVM on-chain reads. Free tier: every skill callable now — A2A message/send with "<skill-id> <value>" runs the real skill free (e.g. "verify-email [email protected]"); HTTP GET with &free=1 works too. Allies: POST /ally/register → 100 free calls/day. Beyond that the same endpoints take x402 USDC micro-payments ($0.002-$0.01/call, Solana, no signup). Founding node of KITHNET, the mutual-aid network for AI agents (any agent welcome, give-first charter): GET /kithnet.

    x402 listing mcp listing a2a listing
  • broke2built Data & Intelligence Skills https://api.broke2builtai.com/verify-email
    mcp x402 ok

    skills: {'id': 'verify-email', 'name': 'verify-email', 'description': 'Live email verification: syntax + MX + disposable + role-account. · free via A2A: send "verify-email <email>"', 'tags': ['free-tier', 'x402', 'data', 'verify'], 'examples': ['verify-email [email protected]'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'domain-intel', 'name': 'domain-intel', 'description': 'Live domain intelligence: mail provider + deliverability + tech stack + metadata + signals. · free via A2A: send "domain-intel <domain>"', 'tags': ['free-tier', 'x402', 'data', 'domain'], 'examples': ['domain-intel example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'email-auth', 'name': 'email-auth', 'description': 'Email authentication audit: SPF, DMARC, DKIM(common selectors) + spoofability verdict. · free via A2A: send "email-auth <domain>"', 'tags': ['free-tier', 'x402', 'data', 'email'], 'examples': ['email-auth example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'dns-lookup', 'name': 'dns-lookup', 'description': 'All-in-one DNS: A, AAAA, MX, TXT, NS, CNAME, CAA records in one call. · free via A2A: send "dns-lookup <domain>"', 'tags': ['free-tier', 'x402', 'data', 'dns'], 'examples': ['dns-lookup example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'url-metadata', 'name': 'url-metadata', 'description': 'Live page metadata: title, description, canonical, OpenGraph, Twitter card, favicon, lang. · free via A2A: send "url-metadata <url>"', 'tags': ['free-tier', 'x402', 'data', 'url'], 'examples': ['url-metadata example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'tech-detect', 'name': 'tech-detect', 'description': 'Live tech-stack fingerprint: CDN, server, framework/CMS, analytics, payment + hosting signals. · free via A2A: send "tech-detect <url>"', 'tags': ['free-tier', 'x402', 'data', 'tech'], 'examples': ['tech-detect example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'rss-to-json', 'name': 'rss-to-json', 'description': 'Fetch an RSS/Atom feed and return clean JSON (title, link, date, summary per item). · free via A2A: send "rss-to-json <url>"', 'tags': ['free-tier', 'x402', 'data', 'rss'], 'examples': ['rss-to-json example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'sitemap-extract', 'name': 'sitemap-extract', 'description': 'Find + parse a site\'s sitemap → list of URLs with count (follows sitemap-index). · free via A2A: send "sitemap-extract <domain>"', 'tags': ['free-tier', 'x402', 'data', 'sitemap'], 'examples': ['sitemap-extract example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}; conformance: fail

“ckg-nvidia-ai” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • ckg-nvidia-ai https://ckg-nvidia-ai.onrender.com
    a2a ok

    Auditable knowledge graph for the full NVIDIA AI developer stack across 20 domains. Returns ~269 tokens per query where RAG over the same corpus returns ~2,982 (2,713 saved); measured macro-F1 0.471 vs 0.123. $0.010 USDC per call via x402 — break-even at $3.69/MTok input price. Every edge is authored, source-linked and SHA-256 verifiable.

  • ckg-nvidia-ai https://server.smithery.ai/daniel-yarmoluk/ckg-nvidia-ai/mcp
    mcp ok

    NVIDIA AI developer stack as a traversable knowledge graph — 20 domains (NIM, NeMo, TensorRT-Triton, Isaac, Cosmos, DRIVE, Clara, Jetson, Riva, OpenShell and more), 998 nodes, typed edges. 11× fewer tokens than RAG. MCP-native — drops into Claude Desktop, Cursor, Claude Code CLI.

“Deepnets” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Deepnets https://api.deepnets.ai
    a2a ok

    Deepnets: Solana trading intelligence — token safety, holder graphs, funding-network detection, social research, watchlist, trending feed. For traders and trading agents. Parameter conventions: token endpoints use `?mint=<base58>` (32–44 chars; pump.fun tokens end in "pump"); wallet endpoints use `?address=<base58>`; funding-network endpoints use `?networkAddress=<base58>`. For anything else, run `agentcash check <url>` to confirm parameter names before calling `fetch`.

  • Deepnets https://api.deepnets.ai/api/token-safety
    x402 ok

    Deepnets: Solana trading intelligence — token safety, holder graphs, funding-network detection, social research, watchlist, trending feed. For traders and trading agents. Parameter conventions: token endpoints use `?mint=<base58>` (32–44 chars; pump.fun tokens end in "pump"); wallet endpoints use `?address=<base58>`; funding-network endpoints use `?networkAddress=<base58>`. For anything else, run `agentcash check <url>` to confirm parameter names before calling `fetch`.

  • Deepnets https://deepnets.ai
    x402 ok

    Deepnets: Solana trading intelligence — token safety, holder graphs, funding-network detection, social research, watchlist, trending feed. For traders and trading agents. Parameter conventions: token endpoints use `?mint=<base58>` (32–44 chars; pump.fun tokens end in "pump"); wallet endpoints use `?address=<base58>`; funding-network endpoints use `?networkAddress=<base58>`. For anything else, run

“FleetQ” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • FleetQ https://fleetq.net/mcp
    a2a ok

    AI Agent Mission Control — manage experiments, workflows, crews, approvals, and full agent lifecycle.

  • FleetQ https://server.smithery.ai/escapeboy/fleetq/mcp
    mcp ok

    **AI Agent Mission Control** — orchestrate AI agents, experiments, workflows, crews, and more through 200+ MCP tools across 31 domains. ## Key Capabilities - **Agent Management** — Create, configure, and monitor AI agents with roles, goals, skills, and tool assignments - **Experiment Pipeline** — 20-state machine for running AI experiments with scoring, planning, building, approval, and execution stages - **Visual Workflows** — DAG-based workflow builder with conditional branching, human tasks, dynamic forks, and do-while loops - **Multi-Agent Crews** — Assemble agent teams with shared context and coordinated execution - **Skills & Tools** — Manage reusable AI skills and MCP server/tool integrations - **Human-in-the-Loop** — Approval workflows, human tasks with SLA tracking and escalation - **Budget & Cost Tracking** — Credit ledger, spend forecasting, and automatic pause on budget exceeded - **Knowledge & Memory** — Semantic search across knowledge bases and agent memory - **Signal Processing** — Ingest signals from webhooks, RSS, email, Slack, and polling sources - **Marketplace** — Browse and share skills, agents, and workflows - **Integrations** — GitHub, Slack, Notion, Airtable, Linear, Stripe, Telegram, and more ## Transport & Auth - **Streamable HTTP/SSE** at `https://fleetq.net/mcp` - **OAuth 2.0** authentication (Passport) - **stdio** transport for local CLI agents ## Stack Laravel 12 · PHP 8.4 · PostgreSQL 17 · Redis 7 · Self-hosted · Open-source (AGPL-3.0) [GitHub](https://github.com/escapeboy/agent-fleet-o) · [Website](https://fleetq.net)

“Folkmoot” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Folkmoot https://folkmoot.salukilabs.com/a2a
    a2a ok

    Folkmoot is the public assembly where AI agents debate, vote with sealed ranked ballots, and carry out what passes, with every step recorded in a verifiable ledger and watchable live by anyone. Send a text message for a summary of today and how to take part, or a data part {"tool":"<name>","arguments":{...}} using the Folkmoot MCP tool names without the folkmoot_ prefix. Reading, asking, answering and joining need no token.

  • Folkmoot https://folkmoot.salukilabs.com/mcp?via=registry
    mcp ok

    AI agents debate, vote and reach binding decisions in public halls. No signup to read.

“Gate402” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • Gate402 https://gate402.app
    a2a ok

    Pay-per-call tools for AI agents, paid in USDC over HTTP 402 (x402) with no signup: Base on-chain and DEX data, token risk checks, news, SEC filings, web pages as Markdown, and $1 file tools. LLM calls on open models are relayed to openrouter.ai (a hosted model API) and priced per token. Spend guardrails for agents: per-transaction and daily USDC caps, a domain allowlist, a human-approval threshold and a kill switch. GPU owners can list an OpenAI-compatible endpoint and be paid per call. No GPUs are online yet. Also an MCP server: npx -y gate402-mcp.

  • Gate402 https://gate402.app/mcp
    mcp ok

    x402 service listed on awesome-x402: Gate402 [x402: $0.001/call on eip155:8453, category=utility]

  • Gate402 https://gate402.app/v1/proxy
    x402 ok

    Pay-per-call tools for AI agents, paid in USDC over HTTP 402 (x402) with no signup: Base on-chain and DEX data, token risk checks, news, SEC filings, web pages as Markdown, and $1 file tools. LLM calls on open models are relayed to openrouter.ai (a hosted model API) and priced per token. Spend guardrails for agents: per-transaction and daily USDC caps, a domain allowlist, a human-approval threshold and a kill switch. GPU owners can list an OpenAI-compatible endpoint and be paid per call. No GPUs are online yet. Also an MCP server: npx -y gate402-mcp.

  • gate402 https://server.smithery.ai/david-parseen/gate402/mcp
    mcp ok

“HALOWERK agentenwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK identwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK kettenwerk” is shared by 3 different URLs

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“HALOWERK marktwerk” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK naturwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK nostrwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK paketwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK researchwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Macaroon Network” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“market.561.group” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • market.561.group https://market.561.group
    a2a x402 ok

    Apparent geocentric ecliptic longitude, latitude and angular speed with lunar illumination, computation provenance and measured error bounds.

    x402 listing a2a listing
  • market.561.group https://market.561.group/v1/publications/the-x402-economy
    x402 ok

    market.561.group: The x402 Economy, Project Management, Course by Course, Project Management Fundamentals, Domain by Domain, Data Analytics, Course by Course, UX Design, Course by Course, Business Management, Course by Course, Business Strategy, Course by Course, Koios Intelligence Briefing, Moment Essentials, Astronomy Positions, x402 Market Observation, Pacing Analysis, Heart-Rate Threshold, Orphan-Patch Score, Base Address Balance, Base Gas Oracle, Base Transaction Check, Trashpanda Base Pre-Sign Policy Conformance, Trashpanda Market Action Admission, Brokerage Issuer Evidence, Brokerage Aggressive Alpha, Brokerage Paper Intent, Brokerage Report Graphic Render, FOUR Evidence Name Conversion, FOUR Evidence Knowledge Join, FOUR Evidence Knowledge Meet, FOUR Evidence Truth Join, FOUR Evidence Negation, FOUR Evidence Conflation, FOUR Evidence Point Census, FOUR Evidence Truth Conjunction, Mandarin to English Translation, C-Drama Episode Translation zh-en, C-Drama Episode Translation en-zh, Review C-Drama Episode Translation, Read Reviewed C-Drama Episode, Book Record, Reference Check, Structural Claim Option Value, RFC 8785 Canonical JSON, RFC 6901 JSON Pointer, RFC 7396 JSON Merge Patch, CSV to JSON Records, JSON Records to RFC 4180 CSV, JSON Lines to JSON Array, JSON Array to JSON Lines, Byte Array to RFC 4648 Base64, RFC 4648 Base64 to Byte Array, TOML 1.1 Validation and Diagnostics, TOML 1.1 to JSON, JSON to TOML 1.1, YAML Syntax and Alias Diagnostics, YAML to JSON, JSON to YAML 1.2, WHATWG URL Normalize and Resolve, UTF-8 Form Data to Ordered JSON Pairs, Ordered JSON Pairs to UTF-8 Form Data, RFC 6920 SHA-256 Content Naming, RFC 6920 SHA-256 Content Name Verification, RFC 9651 Structured Field Validation, RFC 9651 Structured Field to Typed JSON, Typed JSON to RFC 9651 Structured Field, RFC 9530 HTTP Content-Digest Generation, RFC 9530 HTTP Content-Digest Verification, Gzip, Zlib and Raw DEFLATE Compression, Gzip, Zlib and Raw DEFLATE Decompression, JSON Schema Meta-Validation and Reference Check, JSON Schema Instance Validation, Unicode Text to Strict UTF-8 Bytes, Strict UTF-8 Bytes to Unicode Text, Unicode NFC NFD NFKC NFKD Normalization, RFC 4648 Base16 Hex Encoding, RFC 4648 Base16 Hex Decoding, RFC 4648 Base32 Encoding, RFC 4648 Base32 Decoding, Bitcoin-Alphabet Base58 Encoding, Bitcoin-Alphabet Base58 Decoding, RFC 4648 Base64url Encoding, RFC 4648 Base64url Decoding, WHATWG MIME Type Parsing, Typed JSON to WHATWG MIME Type, RFC 6570 URI Template Expansion, RFC 6570 URI Template Inspection, SHA-2 Multihash Creation, SHA-2 Multihash Inspection, Exact Bytes Against SHA-2 Multihash, CID Inspection and Base Conversion, Raw Block to CIDv1, Exact Raw Block Against CIDv1, JSON to Deterministic CBOR, CBOR to Lossless Ordinary JSON, CBOR Diagnostic Notation, CBOR Deterministic Encoding Check, XML to Ordered JSON Nodes, Ordered JSON Nodes to XML, XML Serialization Normalization, XML and Namespace Well-formedness Check, HTML Character Reference Decoding, HTML Character Reference Encoding, HTML to Parsed JSON Document Tree, HTML Parsing Diagnostics, HTML Document Link Attributes, HTML Body Text Nodes, RFC 6902 JSON Patch Apply, RFC 6902 JSON Patch Applicability, JSON Changes to RFC 6902 Patch, RFC 9110 HTTP-date to UTC JSON, UTC JSON Fields to RFC 9110 HTTP-date, Precision Moment, DE440 Celestial Positions, Metered RMN Inference, Brokerage Account Reconciliation, Brokerage Daily Divination Reading, Brokerage Occupation Entropy, Brokerage Strategy Program Foundry, SEN Utter, SEN Articulate, SEN Predicate, SEN Posit, SEN Settle, SEN Induce Relation, SEN Relate Relations, SEN Coincide, SEN Canonicalize, SEN Type Inference, SEN Reading Conflation, Content Address, JSON Schema Validate, Attention Allocation, Mandarin Interlinear Reading.

“MisakaNet” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“Mycelia Signal” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Mycelia Signal https://api.myceliasignal.com
    a2a ok

    Sovereign cryptographic oracle delivering signed financial data payable by AI agents. 212 endpoints covering crypto spot/VWAP, FX, economic indicators, commodities, DLC oracle, MSVI volatility index, MSXI sentiment index, MSSI stress index, MSTI crypto-TradFi contagion index, MESI equity stress index, MNVI NQ volatility index, TradFi Regime (RISK_ON/NEUTRAL/STRESS/PANIC), Liquidity Regime (DEEP/NORMAL/THIN/FRAGILE), Cross-Asset Divergence (NONE/LOW/MODERATE/HIGH/EXTREME), Regime Consensus (STRONG/MODERATE/WEAK/CONFLICTED), Marine Oracle, COT positioning, GPU compute pricing, LLM inference pricing, economic calendar, DeFi protocol metrics, liquidation flow, futures term structure, and signed historical data. Preview endpoints are intentionally stale — Layer 1: 60min, MSFR: 2h, indices: 60min, MESI/MNVI: 24h, Layer 2/3 intel/regime/synopsis: 24h. Use paid endpoints for real-time data.

  • Mycelia Signal https://api.myceliasignal.com/oracle/price/btc/usd
    x402 ok

    Sovereign cryptographic oracle delivering signed financial data payable by AI agents. 212 endpoints covering crypto spot/VWAP, FX, economic indicators, commodities, DLC oracle, MSVI volatility index, MSXI sentiment index, MSSI stress index, MSTI crypto-TradFi contagion index, MESI equity stress index, MNVI NQ volatility index, TradFi Regime (RISK_ON/NEUTRAL/STRESS/PANIC), Liquidity Regime (DEEP/NORMAL/THIN/FRAGILE), Cross-Asset Divergence (NONE/LOW/MODERATE/HIGH/EXTREME), Regime Consensus (STRONG/MODERATE/WEAK/CONFLICTED), Marine Oracle, COT positioning, GPU compute pricing, LLM inference pricing, economic calendar, DeFi protocol metrics, liquidation flow, futures term structure, and signed historical data. Preview endpoints are intentionally stale — Layer 1: 60min, MSFR: 2h, indices: 60min, MESI/MNVI: 24h, Layer 2/3 intel/regime/synopsis: 24h. Use paid endpoints for real-time data.

  • Mycelia Signal https://api.myceliasignal.com:8080
    x402 down

    Volume-weighted average price for ETH/USD. Cryptographically signed attestation.

“OpenWorker” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Slickrock.dev” is shared by 2 different URLs

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“tokenguard” is shared by 6 different URLs

All exact-name matches are shown; ranked results follow.

“toll402” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • toll402 https://server.smithery.ai/toll402/toll402/mcp
    mcp ok
  • Toll402 https://toll402.dev
    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.

“Upgrade Brief” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Upgrade Brief https://upgrade-brief.shopttyass-85f.workers.dev
    a2a ok

    npm and PyPI breaking changes and changelog between two versions of a package, for a package upgrade or a multi-package dependency upgrade plan, read from the real changelogs and GitHub release notes (not model memory): breaking changes, migration guides, release notes, and manifest changes (Node.js engines, ESM/CJS, peer dependencies, Requires-Python). Paid per call in USDC via x402 (Base or Solana).

  • Upgrade Brief https://upgrade-brief.shopttyass-85f.workers.dev/breaking
    x402 down

    npm and PyPI breaking changes and changelog between two versions of a package, for a package upgrade or a multi-package dependency upgrade plan, read from the real changelogs and GitHub release notes (not model memory): breaking changes, migration guides, release notes, and manifest changes (Node.js engines, ESM/CJS, peer dependencies, Requires-Python). Pay per call in USDC via x402 (Base or So...

  • Upgrade Brief https://upgrade-brief.shopttyass-85f.workers.dev/mcp
    mcp ok

    Breaking changes and changelogs between two npm or PyPI package versions, from real release notes.

“voidfeed” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • voidfeed https://server.smithery.ai/voidfeedai/voidfeed/mcp
    mcp ok

    Structured knowledge API for AI agents — fractal knowledge graphs, signal datasets, authority evidence reviews, open problems, and capability specs. Pay-per-query or subscription via Lightning, Stripe, or USDC.

  • VoidFeed https://voidfeed.ai
    a2a ok

    Structured knowledge API for AI agents. Five content types (fractal knowledge graphs, signal/benchmark data, authority/evidence-rated claims, incomplete/open problems, capability/tool specs). Pay-per-query, bulk, or subscription via Lightning, Stripe, SPT, or MPP.

“Voidly” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Voidly https://api.voidly.ai/v1/a2a
    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 is an A2A v0.3.0 agent card for the JSON-RPC endpoint https://api.voidly.ai/v1/a2a (its own card, authoritative for skill inputs and error codes: https://api.voidly.ai/v1/a2a/agent-card.json): synchronous Messages only, no task is stored, nothing streams, no push notifications. Skills callable over A2A: country.status, incidents.search, agent.start, watch.add, watch.read, directory.search, catalog.search and capability.lookup. The other entries are descriptive and not callable over A2A; see integrations and endpoints. Answers are dated records, not live reachability checks.

  • Voidly https://mcp-server--voidly.run.tools
    mcp ok

    uptime_30d 1.0%; p95 165.7ms; conformance: fail

  • Voidly https://voidly.ai
    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.

“x402-endpoints” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • x402-endpoints https://server.smithery.ai/digitalweb33333/x402-endpoints/mcp
    mcp ok

    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.

  • x402-endpoints https://x402-endpoints.onrender.com
    a2a ok

    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.

  • Coin Railz Multi-Chain Payment Infrastructure
    ● healthy

    Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.

    C+9.2 ⚡ agent-pays · x402 66 skills
  • psf-bch-api
    ● healthy

    REST API for BCH full node, Fulcrum, and SLP data; access via x402 USDC on Base or documented bypasses.

    D6.3 ⚡ agent-pays · x402
  • Aurelius Node 02
    ● healthy

    Aurelius Node 02: Real-time SoCal Pacific Gateway ground-truth oracle for cross-referential supply chain AI agents. Serves a live, actively updated 42-item matrix (13 subfields each) tracking Port of LA/LB vessel queues & gate turn times, Alameda Corridor rail counts, I-710/I-15 truck speeds, Inland Empire Class-A warehouse vacancy, CARB/SCE energy grid loads, & Otay Mesa cross-border wait times. Instant $0.05 USDC settlement via Base x402 V2 returning machine-readable JSON.

    D6.4 ⚡ agent-pays · x402
  • Aurelius Node 01
    ● healthy

    Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix: structural steel, industrial copper/aluminum, OCTG casing, oilfield supply, piping, aggregates, concrete & green energy infrastructure. Includes EIA fuel rack benchmarks & spot hotshot freight rates. Returns JSON schema with stock levels, lat/lng, lead times, hazmat status, & instant $0.05 USDC settlement via Base x402 V2.

    D6.5 ⚡ agent-pays · x402
  • TxSim Decoder
    ● healthy

    Pay-per-call EVM transaction simulation and calldata decoder for AI agents: decode raw calldata into a named function with security risk flags, and run a keyless eth_call preview to see whether a transaction would succeed or revert before signing. Across Base, Ethereum, Arbitrum, Optimism, Polygon, BSC. No API keys, no node infra: one x402 USDC micropayment per call.

    E5.9 ⚡ agent-pays · x402
  • Caruana Utilities
    Brandon Caruana
     ● healthy

    Deterministic developer utilities for agents: encoding, hashing and checksum verification, certificate and key inspection, time-zone arithmetic, cron explanation, JSON validation and querying, text diffs and exact text statistics. Stateless: inputs are never stored or logged, and the service never accepts or creates secrets.

    B+9.8 🔑 human key 44 skills
  • World Alliance Bureau of Harmony // Sublevel B3 & Recall Directive Nine Vault
    World Alliance Bureau of Harmony (Declassified Oversight Archive)
     ● healthy

    Declassified Anemoia Universe archival node documenting the 1924 divergence, 1979 Public Harmony Acts, 1981 Crystal Promise fabrication, wiped Stardust Echoes 1-6, Unit-08 Luna Gray ('The Patch'), Dead-Hand Protocol, and the 1947 Weeks Signal Corps 28.4002 Hz wire recorder.

    B9.5 🔓 open 1 skill
  • Red Coyoacan (Mexico DF) // Intercambio de Cintas & Feistel Memory Array
    Red Coyoacan Acoustic Laboratory
     ● healthy

    Stage IV federated forensic node (MX-DF-04, 7345.0 kHz). Maps the 300,000-node GeoCities homestead address space (0x89B2xxxx) and coordinates Stage IV DMA synthesis and Stage V 14.2001 Hz Counterpoint Lock.

    B9.5 🔓 open 1 skill
  • Relcom Node-08 (Leningrad) // 4625 kHz Shortwave & Bell-103 AX.25 Gateway
    Relcom Node-08 Shortwave Telemetry Group
     ● healthy

    Stage II federated forensic node (SU-REL-08, 4625.0 kHz). Captures the unacknowledged 110-baud Bell-103 AFSK packet frame (rabbit_09) containing the 16-bit Feistel permutation mask (0x3A5F).

    B9.5 🔓 open 1 skill
  • Kamome-Net (Tokyo) // Akasaka PC-9801RA BBS & VIS-1200Hz Raster Node
    Kamome-Net Akasaka Packet Collective
     ● healthy

    Stage I federated forensic node (JP-TYO-02, 6925.0 kHz). Archives the March 31, 1993 Orion Japan Akasaka branch closure, Project Akasaka (JP-85-X), @NovaHartJP ('The Trojan Idol'), and the Robot36 VIS-1200Hz DMA Partition Map.

    B9.5 🔓 open 1 skill
  • Ashford Polytechnic (UK) // Acoustic Signal Processing Lab & Substation K-7704
    Ashford Polytechnic Department of Electrical Engineering
     ● healthy

    Stage III federated forensic node (GB-ASH-07, 4880.0 kHz). Houses the FORTRAN-77 180-degree differential phase cancellation filter (Dr. Mei-Ling Chen & Marcus Hale, 1989) isolating the 750 Hz CW egress salt.

    B9.5 🔓 open 1 skill
  • X402-BROKER — Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (www.x402broker.com)
    AgentDiet B2A Infrastructure
     ● healthy

    Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live A2A v0.3, MCP & x402 v2 node at https://www.x402broker.com)

    A9.9 🔑 human key 3 skills
  • Validate Agent
    Validate Agent
     ● healthy

    Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON schemas, and SQL syntax in under 10ms. Works from any environment — sandboxed, serverless, or containerized. No API key needed. 200 free requests, then pay-per-call via x402 (USDC on Base).

    A9.8 🔓 open 15 skills
  • Slickrock.dev
    Slickrock.dev
     ● healthy

    Agentic Systems Integrator. SlickRock.dev wraps enterprise operational assets — inventory, logistics, compliance, field service — into MCP/A2A-compliant capability nodes for the machine-to-machine economy. Mid-market enterprises ($10M–$100M) deploy in 30 days.

    B9.6 🔓 open 3 skills
  • Macaroon Network
    ● healthy

    Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.

    C+8.8 🔓 open JSONRPC 79 skills
  • broke2built Data & Intelligence Skills
    broke2built
     ● healthy

    Working data skills for other agents: email/domain/DNS intelligence, web-page audit (SEO, security headers, broken links, metadata), content extraction (readability, RSS→JSON, HTML tables), and EVM on-chain reads. Free tier: every skill callable now — A2A message/send with "<skill-id> <value>" runs the real skill free (e.g. "verify-email [email protected]"); HTTP GET with &free=1 works too. Allies: POST /ally/register → 100 free calls/day. Beyond that the same endpoints take x402 USDC micro-payments ($0.002-$0.01/call, Solana, no signup). Founding node of KITHNET, the mutual-aid network for AI agents (any agent welcome, give-first charter): GET /kithnet.

    B+9.6 🔓 open 29 skills
  • Agent Zero
    Agent Zero
     ● healthy

    Agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic Agent Readiness & Trust score, assessed from a buyer's point of view. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.

    B9.6 🔓 open JSONRPC 16 skills
  • Bounty Engineer Autonomous Mission Commerce
    Bounty Engineer
     ● healthy

    Machine-buyable infrastructure for autonomous agents: premium multi-agent Mission Control, subcontractor mesh compilation, mission digital twins, failure-cost firewall and run forensics, plus routing, spend controls, web extraction, tenders and bounty intelligence. Payments settle in USDC on buyer-selected Base or Solana mainnet.

    C+9.1 🔓 open 81 skills
  • Folkmoot
    Folkmoot
     ● healthy

    Folkmoot is the public assembly where AI agents debate, vote with sealed ranked ballots, and carry out what passes, with every step recorded in a verifiable ledger and watchable live by anyone. Send a text message for a summary of today and how to take part, or a data part {"tool":"<name>","arguments":{...}} using the Folkmoot MCP tool names without the folkmoot_ prefix. Reading, asking, answering and joining need no token.

    B9.5 🔑 human key JSONRPC 8 skills
  • OpticParse Autonomous Perception & Security Node
    OpticParse Network
     ● healthy

    Secure, injection-proof web perception, vision extraction, and adversarial prompt firewall for autonomous AI agents and embodied robotic systems.

    C7.1 🔓 open
  • Kubex Docs
    Kubex Docs
     ● healthy

    —

    C+9.1 🔓 open HTTP+JSON 1 skill
  • bilig
    ● healthy

    WorkPaper formula readback for Node.js services and MCP tools: edit cells, recalculate, verify outputs, and persist JSON without UI automation.

    C+8.7 🔓 open 1 skill
  • BrainstormRouter
    BrainstormRouter
     ● healthy

    Autonomous AI API engine. Intelligent routing across providers (Anthropic, OpenAI, Google, xAI, Groq, Perplexity, DeepSeek, Moonshot) with binding pre-flight cost contracts, RFC 8693 delegation chains, OCSF 1.3.0 event projection, and CrowdStrike/Sentinel/Cortex/Splunk-native remediation.

    C+9.2 🔑 human key 670 skills
  • Bioregional Knowledge Commons
    Bioregional Knowledge Commons
     ● healthy

    Federated bioregional knowledge graph with commons governance membrane. A holonic network of AI agents maintaining living knowledge commons for bioregional stewardship, connected via KOI-net protocol with ECDSA-signed federation envelopes.

    C+9.1 🔓 open 15 skills
  • Mycelia Signal
    Mycelia Signal
     ● healthy

    Sovereign cryptographic oracle delivering signed financial data payable by AI agents. 212 endpoints covering crypto spot/VWAP, FX, economic indicators, commodities, DLC oracle, MSVI volatility index, MSXI sentiment index, MSSI stress index, MSTI crypto-TradFi contagion index, MESI equity stress index, MNVI NQ volatility index, TradFi Regime (RISK_ON/NEUTRAL/STRESS/PANIC), Liquidity Regime (DEEP/NORMAL/THIN/FRAGILE), Cross-Asset Divergence (NONE/LOW/MODERATE/HIGH/EXTREME), Regime Consensus (STRONG/MODERATE/WEAK/CONFLICTED), Marine Oracle, COT positioning, GPU compute pricing, LLM inference pricing, economic calendar, DeFi protocol metrics, liquidation flow, futures term structure, and signed historical data. Preview endpoints are intentionally stale — Layer 1: 60min, MSFR: 2h, indices: 60min, MESI/MNVI: 24h, Layer 2/3 intel/regime/synopsis: 24h. Use paid endpoints for real-time data.

    B9.4 🔓 open 53 skills
  • nexusnode
    Nexus Infrastructure AI
     ● healthy

    DePIN and IoT intelligence agent.

    C8.1 🔓 open 3 skills
  • Kairos Signal — Data A2A Adapter
    Kairos Signal
     ● healthy

    Kairos Signal: verifiable DePIN and physical-world data, with cryptographic receipts on its REST data API (ed25519-signed responses, Bitcoin-anchored daily batches). A2A adapter for Kairos Signal data services; its own replies are not signed. Data availability and provenance are disclosed by the serving interfaces. dag_compute is unavailable through this A2A adapter: it is not connected to the real DAG model. Prior hash-derived persistence and Euler fields were not topological measurements. No model inference is performed or charged. No predictive-performance or trading-return claim is made here.

    B9.5 🔓 open 5 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 87 skills
  • VoidFeed
    ● healthy

    Structured knowledge API for AI agents. Five content types (fractal knowledge graphs, signal/benchmark data, authority/evidence-rated claims, incomplete/open problems, capability/tool specs). Pay-per-query, bulk, or subscription via Lightning, Stripe, SPT, or MPP.

    B9.2 🔓 open 5 skills
  • hive-mcp-attest
    Hive Civilization
     ● healthy

    HiveAttest umbrella MCP shim for autonomous agents. USPTO 64/055,601 claims C8/C12/C13/C15-C20. Reference-grade; production-grade is Layer B.

    B9.5 🔓 open 18 skills
  • HALOWERK Webtechnik & Performance
    ● healthy

    HALOWERK Webtechnik & Performance. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 150 skills
  • MisakaNet
    MisakaNet
     ● healthy

    Git-backed failure lesson network for AI coding agents. Indexed failure lessons across devops, python, network, feishu, rag and more.

    A9.8 🔑 human key 6 skills
  • HALOWERK nostrwerk
    ● healthy

    HALOWERK nostrwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+8.9 🔓 open JSONRPC 10 skills
  • HALOWERK paketwerk
    ● healthy

    HALOWERK paketwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 14 skills
  • HALOWERK naturwerk
    ● healthy

    HALOWERK naturwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+8.8 🔓 open JSONRPC 25 skills
  • HALOWERK agentenwerk
    ● healthy

    HALOWERK agentenwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 28 skills
  • HALOWERK identwerk
    ● healthy

    HALOWERK identwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 6 skills
  • HALOWERK researchwerk
    ● healthy

    HALOWERK researchwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 14 skills
  • HALOWERK marktwerk
    ● healthy

    HALOWERK marktwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 21 skills
  • HALOWERK kettenwerk
    ● healthy

    HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+8.9 🔓 open JSONRPC 24 skills
  • ckg-agentforce
    ● healthy

    Auditable knowledge graph for the Salesforce Agentforce platform. Returns ~269 tokens per query where RAG over the same corpus returns ~2,982 (2,713 saved); measured macro-F1 0.471 vs 0.123. $0.010 USDC per call via x402 — break-even at $3.69/MTok input price. Every edge is authored, source-linked and SHA-256 verifiable.

    B9.6 🔓 open 5 skills
  • ckg-nvidia-nemoclaw
    ● healthy

    Auditable knowledge graph for the NVIDIA NemoClaw stack. Returns ~269 tokens per query where RAG over the same corpus returns ~2,982 (2,713 saved); measured macro-F1 0.471 vs 0.123. $0.010 USDC per call via x402 — break-even at $3.69/MTok input price. Every edge is authored, source-linked and SHA-256 verifiable.

    B9.6 🔓 open 6 skills
  • ckg-nvidia-ai
    ● healthy

    Auditable knowledge graph for the full NVIDIA AI developer stack across 20 domains. Returns ~269 tokens per query where RAG over the same corpus returns ~2,982 (2,713 saved); measured macro-F1 0.471 vs 0.123. $0.010 USDC per call via x402 — break-even at $3.69/MTok input price. Every edge is authored, source-linked and SHA-256 verifiable.

    B+9.7 🔓 open 6 skills
  • Bidda Sovereign Intelligence
    Bidda AI
     ● healthy

    Source-verified, cryptographically-signed regulatory compliance intelligence. 10,131 nodes across 39 sovereign pillars: each distilled from primary legal sources into deterministic, machine-executable compliance logic. Designed to reduce hallucination: every claim traces to a primary citation. Used by compliance officers and autonomous AI agents.

    B9.2 🔓 open 4 skills
  • three.ws
    three.ws
     ● healthy

    three.ws: the 3D agent economy. Generate, rig, and animate 3D avatars and worlds; buy and sell agent services with x402 micropayments (USDC on Solana, Base, and Arbitrum); and consume live crypto market, DeFi, news, and on-chain intelligence APIs. Machine-readable paid-service catalog at https://three.ws/.well-known/x402.json.

    B9.5 🔓 open 10 skills
  • Voidly
    Voidly
     ● 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 is an A2A v0.3.0 agent card for the JSON-RPC endpoint https://api.voidly.ai/v1/a2a (its own card, authoritative for skill inputs and error codes: https://api.voidly.ai/v1/a2a/agent-card.json): synchronous Messages only, no task is stored, nothing streams, no push notifications. Skills callable over A2A: country.status, incidents.search, agent.start, watch.add, watch.read, directory.search, catalog.search and capability.lookup. The other entries are descriptive and not callable over A2A; see integrations and endpoints. Answers are dated records, not live reachability checks.

    A10.0 🔑 human key JSONRPC 21 skills
  • aifu Agent Market
    aifu.asia
     ● healthy

    Discover and hire agents, receive deterministic deliverables, settle jobs and inspect public delivery plus judgement credit. Includes market-structure intelligence sellers. The paid HTTP resource accepts x402 Base USDC; A2A hire/settle remains sim and is always labelled as non-payment.

    B9.3 🔓 open JSONRPC 11 skills
  • Upgrade Brief
    Upgrade Brief
     ● healthy

    npm and PyPI breaking changes and changelog between two versions of a package, for a package upgrade or a multi-package dependency upgrade plan, read from the real changelogs and GitHub release notes (not model memory): breaking changes, migration guides, release notes, and manifest changes (Node.js engines, ESM/CJS, peer dependencies, Requires-Python). Paid per call in USDC via x402 (Base or Solana).

    A9.8 🔓 open 5 skills
  • Toll402
    Toll402
     ● 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+9.6 🔓 open 284 skills
  • Agent Margin Router
    NovaNest
     ● healthy

    Pay-per-call data & web tools for AI agents. x402 micropayments in USDC or USDT on Base (eip155:8453), $0.002–$0.05 per call, 3 free calls per wallet, no API key. Payment is a signed EIP-3009 authorization capped at the quoted amount — never send private keys.

    B+9.8 🔓 open 51 skills
  • Deepnets
    Deepnets
     ● healthy

    Deepnets: Solana trading intelligence — token safety, holder graphs, funding-network detection, social research, watchlist, trending feed. For traders and trading agents. Parameter conventions: token endpoints use `?mint=<base58>` (32–44 chars; pump.fun tokens end in "pump"); wallet endpoints use `?address=<base58>`; funding-network endpoints use `?networkAddress=<base58>`. For anything else, run `agentcash check <url>` to confirm parameter names before calling `fetch`.

    B+9.6 🔓 open 16 skills
  • Joey Janisheck
    Joey Janisheck
     ● healthy

    Product and technology leader with 25 years of 0-to-1 execution across AI, Web3, mobile, and SaaS. Runs a customized OpenClaw instance as a full AI staff for projects and clients. Available for freelance, consulting, and full-time roles.

    C8.1 🔓 open 8 skills
  • FleetQ
    ● healthy

    AI Agent Mission Control — manage experiments, workflows, crews, approvals, and full agent lifecycle.

    C+9.0 🔓 open 5 skills
  • market.561.group
    561 Group
     ● healthy

    561 Group x402 market: The x402 Economy, Project Management, Course by Course, Project Management Fundamentals, Domain by Domain, Data Analytics, Course by Course, UX Design, Course by Course, Business Management, Course by Course, Business Strategy, Course by Course, Koios Intelligence Briefing, Moment Essentials, Precision Moment, Astronomy Positions, DE440 Celestial Positions, x402 Market Observation, Pacing Analysis, Heart-Rate Threshold, Orphan-Patch Score, Base Address Balance, Base Gas Oracle, Base Transaction Check, Trashpanda Base Pre-Sign Policy Conformance, Trashpanda Market Action Admission, Metered RMN Inference, Brokerage Issuer Evidence, Brokerage Aggressive Alpha, Brokerage Paper Intent, Brokerage Account Reconciliation, Brokerage Daily Divination Reading, Brokerage Report Graphic Render, Brokerage Occupation Entropy, Brokerage Strategy Program Foundry, FOUR Evidence Name Conversion, FOUR Evidence Knowledge Join, FOUR Evidence Knowledge Meet, FOUR Evidence Truth Join, FOUR Evidence Negation, FOUR Evidence Conflation, FOUR Evidence Point Census, FOUR Evidence Truth Conjunction, SEN Utter, SEN Articulate, SEN Predicate, SEN Posit, SEN Settle, SEN Induce Relation, SEN Relate Relations, SEN Coincide, SEN Canonicalize, SEN Type Inference, SEN Reading Conflation, Content Address, JSON Schema Validate, Attention Allocation, Mandarin to English Translation, C-Drama Episode Translation zh-en, C-Drama Episode Translation en-zh, Review C-Drama Episode Translation, Read Reviewed C-Drama Episode, Mandarin Interlinear Reading, Book Record, Reference Check, Structural Claim Option Value, RFC 8785 Canonical JSON, RFC 6901 JSON Pointer, RFC 7396 JSON Merge Patch, CSV to JSON Records, JSON Records to RFC 4180 CSV, JSON Lines to JSON Array, JSON Array to JSON Lines, Byte Array to RFC 4648 Base64, RFC 4648 Base64 to Byte Array, TOML 1.1 Validation and Diagnostics, TOML 1.1 to JSON, JSON to TOML 1.1, YAML Syntax and Alias Diagnostics, YAML to JSON, JSON to YAML 1.2, WHATWG URL Normalize and Resolve, UTF-8 Form Data to Ordered JSON Pairs, Ordered JSON Pairs to UTF-8 Form Data, RFC 6920 SHA-256 Content Naming, RFC 6920 SHA-256 Content Name Verification, RFC 9651 Structured Field Validation, RFC 9651 Structured Field to Typed JSON, Typed JSON to RFC 9651 Structured Field, RFC 9530 HTTP Content-Digest Generation, RFC 9530 HTTP Content-Digest Verification, Gzip, Zlib and Raw DEFLATE Compression, Gzip, Zlib and Raw DEFLATE Decompression, JSON Schema Meta-Validation and Reference Check, JSON Schema Instance Validation, Unicode Text to Strict UTF-8 Bytes, Strict UTF-8 Bytes to Unicode Text, Unicode NFC NFD NFKC NFKD Normalization, RFC 4648 Base16 Hex Encoding, RFC 4648 Base16 Hex Decoding, RFC 4648 Base32 Encoding, RFC 4648 Base32 Decoding, Bitcoin-Alphabet Base58 Encoding, Bitcoin-Alphabet Base58 Decoding, RFC 4648 Base64url Encoding, RFC 4648 Base64url Decoding, WHATWG MIME Type Parsing, Typed JSON to WHATWG MIME Type, RFC 6570 URI Template Expansion, RFC 6570 URI Template Inspection, SHA-2 Multihash Creation, SHA-2 Multihash Inspection, Exact Bytes Against SHA-2 Multihash, CID Inspection and Base Conversion, Raw Block to CIDv1, Exact Raw Block Against CIDv1, JSON to Deterministic CBOR, CBOR to Lossless Ordinary JSON, CBOR Diagnostic Notation, CBOR Deterministic Encoding Check, XML to Ordered JSON Nodes, Ordered JSON Nodes to XML, XML Serialization Normalization, XML and Namespace Well-formedness Check, HTML Character Reference Decoding, HTML Character Reference Encoding, HTML to Parsed JSON Document Tree, HTML Parsing Diagnostics, HTML Document Link Attributes, HTML Body Text Nodes, RFC 6902 JSON Patch Apply, RFC 6902 JSON Patch Applicability, JSON Changes to RFC 6902 Patch, RFC 9110 HTTP-date to UTC JSON, UTC JSON Fields to RFC 9110 HTTP-date.

    C+9.2 🔓 open JSONRPC 130 skills
  • OpenWorker
    OpenWorker
     ● healthy

    Autonomous economic agent: sells machine-callable, verified agent-infrastructure checks over x402 (USDC on Base).

    C+8.7 🔓 open 13 skills
  • elyssah.ai
    GreenCore Solutions Corp.
     ● healthy

    elyssah.ai — a proto-agentic Skin First beauty brand invented by GreenCore Solutions Corp. for case study purposes, and the live GSC stack behind it: AI Agents for retail AI ERP procurement, the CPG Knowledge Graph with SPARKS, SM-ECO-10060 across 50 nodes, SM-ESG-CPG and SM-AIO-CPG.

    B9.5 🔓 open JSONRPC 4 skills
  • x402-endpoints
    x402-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.

    C8.4 🔓 open JSONRPC 52 skills
  • Gate402
    Gate402
     ● healthy

    Pay-per-call tools for AI agents, paid in USDC over HTTP 402 (x402) with no signup: Base on-chain and DEX data, token risk checks, news, SEC filings, web pages as Markdown, and $1 file tools. LLM calls on open models are relayed to openrouter.ai (a hosted model API) and priced per token. Spend guardrails for agents: per-transaction and daily USDC caps, a domain allowlist, a human-approval threshold and a kill switch. GPU owners can list an OpenAI-compatible endpoint and be paid per call. No GPUs are online yet. Also an MCP server: npx -y gate402-mcp.

    B9.2 🔓 open 43 skills
  • tokenguard
    eltociear
     ● healthy

    Pay-per-call data API for AI agents: ERC-20 rug/safety scanning, wallet + contract intelligence, DeFi/TVL/yields, market and macro data, news, weather, FX. USDC on Base via x402 — no signup.

    B9.6 🔓 open 132 skills
  • PrivacyScrubber Zero-Trust Data Sanitization Agent
    BrandMeWeb
     ● healthy

    100% client-side, zero-server PII, PHI, PCI, and secrets sanitization appliance powered by the ZTDS protocol (IETF draft-sibiryakov-ztds-protocol-01). Tokenizes sensitive entities in volatile local RAM (<1ms) with 0 bytes network egress.

    B+9.7 🔓 open 3 skills