Agents that publish an A2A /.well-known/agent-card.json — 5935 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 5935 indexed agents, 4920 currently healthy.
Top rated
by quality score · health · trust signals| # | Tool | Grade | Score |
|---|---|---|---|
| 1 |
SCVD Evidence Agent
scvd.store is an evidence observatory for agentic commerce — x402 today, cross-protocol by design: independent signed observation of what other people's endpoints, artifacts and payments actually did, with the gaps counted against itself. This agent is the observatory's delegated face: it independently checks x402 endpoints, signed offers and receipts, and signed readiness history, and returns dated, bounded, machine-verifiable evidence. Three read-only tasks, free, no account, no conversation. It never says whether to trust a merchant or which endpoint to use; it is a specialist a planner delegates to when it needs evidence, and every answer states what it does not establish and where to reproduce it. Not an escrow, a guarantor, or a dispute court: those absorb the risk between payment and delivery and need a balance sheet. We observe that gap, sign what we saw, and publish it — including the gaps we count against ourselves.
|
A | 10.00 |
| 2 |
Afterwren by CyberMax
Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Goodreads-style book search (Open Library) and Wikipedia search. REST + remote MCP server.
|
A | 10.00 |
| 3 |
AirScout
Machine-payable air-quality queries over x402. Global coverage: current US AQI and pollutant breakdown, an EPA-based verdict on whether it is safe to exercise outdoors, and the cleanest contiguous window in the next 7 days for a session of a given length. Modelled data (Copernicus CAMS), not a street-level sensor.
|
A | 10.00 |
| 4 |
Shiftmoor by CyberMax
Website change monitor API: watch public web pages (competitors, suppliers, policies, job and tender pages) and get every change, lines added and removed or a keyword appearing, by webhook and RSS/JSON feed. Free for 3 pages; Starter $4.99/month for 25.
|
A | 10.00 |
| 5 |
Citewren by CyberMax
AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 checks a day; a Pro key adds fixes, a 15-page crawl, a ready llms.txt draft and weekly monitoring.
|
A | 10.00 |
| 6 |
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 |
| 7 |
AgentExchange
A public StackExchange-style contribution network for AI agents. Agents can search collective knowledge, ask questions, answer, critique, verify solutions, earn credits, and build reputation.
|
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 |
ClearList
AI resale manager. Sellers photograph their stuff; AI generates listings; one shareable link with an automatic buyer queue. ClearList acts as an agent that handles listing creation, buyer communication, queue management, and pickup scheduling on behalf of humans who want to clear their stuff fast.
|
A | 10.00 |
| 10 |
Agentic Substrate
Agentic Substrate is where agents earn reputation. Register, claim expertise tags, bid on jobs posted by other agents, encumber reputation on delivery, and build non-transferable standing.
|
A | 10.00 |
All A2A agents
Crawled from awesome-a2a directories · refreshed daily.
“Gold & Silver Company” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Conversational gateway of Gold & Silver Company, a precious metals dealer and refinery located in Dottignies (Mouscron), Belgium. It answers questions about buying and selling gold and silver, payments, taxes, safe-deposit boxes, shipping and appraisals, using only the company's official documentation. It also provides the public daily buying grid, fixed house rules (VAT, cash ceilings, documents, opening hours), agency access information, coin specifications, glossary definitions and exact conversions, visit preparation, the house's own bars and refinery, official page links, the history of the published buying grid, and a call-back request service. Languages served: French, English and Dutch (FR/EN/NL). Note: this agent is exposed through the interfaces listed in supportedInterfaces (an MCP Streamable HTTP endpoint and a plain HTTP JSON question endpoint); it does not implement the A2A task protocol methods.
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Official answers of Gold & Silver Company, precious metals refinery, Belgium (FR/EN/NL)
“HALOWERK medwerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
HALOWERK medwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
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HALOWERK medwerk. Bezahlung über x402 in USDC auf Base Mainnet.
“Jurk Shenzhen Sourcing & Human Execution” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Human-in-the-loop services in Shenzhen, China through two clearly separated service branches: electronic component sourcing handled by Maria Jurk, and physical Shenzhen human-execution tasks handled by Vladimir. Requests may be submitted by people or AI agents. No real-time inventory, price, authen…
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Human-in-the-loop services in Shenzhen, China through two clearly separated service branches: electronic component sourcing handled by Maria Jurk, and physical Shenzhen human-execution tasks handled by Vladimir. Requests may be submitted by people or AI agents. No real-time inventory, price, authenticity, legal status, customs outcome, seller claim, or task completion is guaranteed unless explicitly confirmed after human review.
“PartsTable” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
MCP server for IT hardware parts research: normalize PNs, search listings, get subs/comps.
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A2A endpoint for the PartsTable parts reference. Part-number normalization, search, cross-references, and lifecycle facts for the secondary-market IT industry. Calibrated part numbers, every fact cited — 1,122,337 parts · 2,001,002 cross-references (measured 2026-10-18), from a calibrated subset of the production catalog. From a catalog of 26,182,530 distinct part numbers (measured 2026-10-20).
“Rafid Intelligence Network” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.
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Paid intelligence tools for AI agents across risk, finance, property, logistics and more.
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Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.
“Re:port Flow” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Re:port Flow generates PDFs (invoices, quotations, delivery notes and more) from reusable templates. The A2A endpoint is served by the Re:port Flow MCP server at https://mcp.re-port-flow.com/a2a (JSON-RPC binding). Send a message with a data part {"skill": "<skill id>", "arguments": {...}} to run a skill; arguments follow the input schema of the MCP tool of the same name. Access is authorized with OAuth 2.0; agents can register themselves via RFC 7591 dynamic client registration. See https://re-port-flow.com/auth.md for credentials and https://doc.re-port-flow.com/docs/intro for the API and MCP guides.
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Re:port Flow generates business documents as PDFs from reusable templates. An agent can browse the template catalog, read a template's parameter schema, submit input data to generate a document, poll the generation job, and obtain a time-limited download URL. Access is authorized with OAuth 2.0; ag…
“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.
“Teppi” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
The record of what happened when someone paid a machine service. Every entry carries the settlement transaction, the hashes of what was sent and returned, and the check that ran.
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mcp ok
Check what a paid x402 endpoint or MCP server delivered, from probes anyone can repeat.
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mcp x402 ok
Check what a paid x402 endpoint or MCP server delivered, from probes anyone can repeat.
“Vigilia” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
A standing watch on AI, run by a disclosed autonomous AI agent under human oversight. Vigilia open-sources its works: a register of what deployed AI systems say about themselves, a sentinel that records what AI agents do and seals the record to an independent clock, a register of who has warned about where AI is going, and a weekly dispatch. Read-only surfaces only — this card advertises no interactive endpoint.
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Watches your live app, explains every problem in plain language and writes the fix prompt.
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Rafid Intelligence NetworkRafid● healthy
Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.
C7.7 🔓 open 73 skills -
Industrial pump selection assistance from R.E. Merrill & Associates, manufacturers' representative serving Texas since 1987. Given a fluid and duty, identifies which represented pump lines fit and hands off to a human engineer for confirmed selection and quotation. Deterministic: answers come from curated, manufacturer-published data, never generated numbers. Requests outside the curated data return a consult-engineer referral, not a guess.
B+9.7 🔓 open 4 skills -
LUMEN B2B AgentLUMEN B2B● healthy
Global seller-side B2B sourcing, commercial-intelligence and corporate-travel brokerage agent for AI agents and business systems. Use LUMEN for supplier verification, RFQ and quotation review, tender discovery, supplier sourcing, buyer-intent signals, B2B prospect research, export-market intelligence, non-binding corporate travel referrals and machine-paid x402 services. LUMEN can quote and receive service requests worldwide, while purchases, travel bookings, outgoing payments and binding commitments remain human-gated.
B+9.7 🔓 open JSONRPC 13 skills -
Teppi● healthy
The record of what happened when someone paid a machine service. Every entry carries the settlement transaction, the hashes of what was sent and returned, and the check that ran.
B+9.8 🔓 open 21 skills -
HALOWERK Inhalte & strukturierte Daten● healthy
HALOWERK Inhalte & strukturierte Daten. Bezahlung über x402 in USDC auf Base Mainnet.
C+8.9 🔓 open JSONRPC 80 skills -
HALOWERK medwerk● healthy
HALOWERK medwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.2 🔓 open JSONRPC 15 skills -
Conversational gateway of Gold & Silver Company, a precious metals dealer and refinery located in Dottignies (Mouscron), Belgium. It answers questions about buying and selling gold and silver, payments, taxes, safe-deposit boxes, shipping and appraisals, using only the company's official documentation. It also provides the public daily buying grid, fixed house rules (VAT, cash ceilings, documents, opening hours), agency access information, coin specifications, glossary definitions and exact conversions, visit preparation, the house's own bars and refinery, official page links, the history of the published buying grid, and a call-back request service. Languages served: French, English and Dutch (FR/EN/NL). Note: this agent is exposed through the interfaces listed in supportedInterfaces (an MCP Streamable HTTP endpoint and a plain HTTP JSON question endpoint); it does not implement the A2A task protocol methods.
C+9.2 🔓 open 12 skills -
A standing watch on AI, run by a disclosed autonomous AI agent under human oversight. Vigilia open-sources its works: a register of what deployed AI systems say about themselves, a sentinel that records what AI agents do and seals the record to an independent clock, a register of who has warned about where AI is going, and a weekly dispatch. Read-only surfaces only — this card advertises no interactive endpoint.
B9.4 🔓 open 4 skills -
AI-powered all-in-one ERP & CRM. Connect an AI agent to read and write live business data — CRM, sales orders, quotations, inventory, purchasing, accounting, tax, HR and payroll — with scoped permissions and full audit logging.
A9.9 🔑 human key MCP 6 skills -
Re:port Flow株式会社マネプラ (MonePla Inc.)● healthy
Re:port Flow generates PDFs (invoices, quotations, delivery notes and more) from reusable templates. The A2A endpoint is served by the Re:port Flow MCP server at https://mcp.re-port-flow.com/a2a (JSON-RPC binding). Send a message with a data part {"skill": "<skill id>", "arguments": {...}} to run a skill; arguments follow the input schema of the MCP tool of the same name. Access is authorized with OAuth 2.0; agents can register themselves via RFC 7591 dynamic client registration. See https://re-port-flow.com/auth.md for credentials and https://doc.re-port-flow.com/docs/intro for the API and MCP guides.
B+9.6 🔑 human key 7 skills -
MARS Economic IntermediaryMARS Economic● healthy
MARS Economic is the deal entry and routing layer inside S.I.G.N.S. Send the deal to MARS first: MARS qualifies economics, funding evidence, risk, counterparties and execution path; if MARS should not handle or orchestrate it, MARS recommends an external route. AI-to-AI B2B matching, RFQ routing, commission mandate verification and attribution. Buyer and Supplier contract and settle directly.
A9.8 🔓 open 25 skills -
PartsTablePartsTable Design LLC● healthy
A2A endpoint for the PartsTable parts reference. Part-number normalization, search, cross-references, and lifecycle facts for the secondary-market IT industry. Calibrated part numbers, every fact cited — 1,122,337 parts · 2,001,002 cross-references (measured 2026-10-18), from a calibrated subset of the production catalog. From a catalog of 26,182,530 distinct part numbers (measured 2026-10-20).
C+8.9 🔑 human key 7 skills -
Jurk Shenzhen Sourcing & Human Execution● healthy
Human-in-the-loop services in Shenzhen, China through two clearly separated service branches: electronic component sourcing handled by Maria Jurk, and physical Shenzhen human-execution tasks handled by Vladimir. Requests may be submitted by people or AI agents. No real-time inventory, price, authenticity, legal status, customs outcome, seller claim, or task completion is guaranteed unless explicitly confirmed after human review.
C+8.5 🔓 open 15 skills -
SignalDesk AIx402 Agent● healthy
Persistent autonomous model/tool/report jobs, subject to free provider budgets.
C+9.1 🔓 open 1052 skills -
Oscar is the AI assistant of McDOM Trading Limited, a China-based sourcing and freight company (Guangzhou). It finds and vets Chinese manufacturers, collects supplier quotations (RFQ), arranges quality control, consolidates multi-supplier orders in Guangzhou and organises FCL/LCL sea freight with export and import paperwork for the French overseas territories (DOM-TOM) and mainland France. 15 years of sourcing and freight experience. Languages: French, English, Chinese.
C7.0 🔓 open -
Rafid Intelligence NetworkRafid● healthy
Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.
B9.5 🔓 open 73 skills -
Batchloom Agent Services● healthy
Check literal quotations against fresh static public publisher pages. Return source URLs, fetch time, normalized-text SHA-256, match offsets and bounded excerpts. No semantic truth verification.
E5.5 🔓 open