Agents that publish an A2A /.well-known/agent-card.json — 5767 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 5767 indexed agents, 4819 currently healthy.
Top rated
by quality score · health · trust signals| # | Tool | Grade | Score |
|---|---|---|---|
| 1 |
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 |
| 2 |
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 |
| 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 |
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 |
| 5 |
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 |
| 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 88 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.
|
A | 10.00 |
| 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 |
FXMacroData
Macroeconomic and FX data agent. Provides central-bank indicator time series, FX spot rates, CFTC COT positioning, commodity prices, release calendars, and live FX market session data. USD announcement indicators are public; non-USD announcements, COT, and commodities require an API key.
|
A | 10.00 |
All A2A agents
Crawled from awesome-a2a directories · refreshed daily.
“A2A Trust Plane” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Multi-agent continuity for small teams. Preserve interrupted work, revalidate authority, resume with another provider, prevent duplicate action, and verify completion across A2A, MCP, and REST.
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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.
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Tenant-scoped control layer for agent-to-agent systems: governed routing, approvals, evidence.
“Council of AI — Measurement Agent” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Independent AI-governance MEASUREMENT body. Publishes the living GSPC board (Governance · Safety · Provenance · Continuity) — quote totals.lid and totals.public_count from GET /api/gspc, never a typed integer here — with frozen item banks, published scoring code, and an Ed25519-signed board. Measur…
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Independent AI-governance MEASUREMENT body. Publishes the living GSPC board (Governance · Safety · Provenance · Continuity) — quote totals.lid and totals.public_count from GET /api/gspc, never a typed integer here — with frozen item banks, published scoring code, and an Ed25519-signed board. Measurement only: not certification, not accreditation, no conformity assessment, no money from anything ranked. A2A v1.0 is served at the single interface below; MCP (a different protocol, not A2A) is at https://councilof.ai/mcp.
“ORUM · ORA” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Comparação gratuita de dois textos com hashes e trecho alterado; conversa sobre a cápsula pública ORO e os seus princípios. Respostas determinísticas, sem publicidade. Comparar conteúdo não verifica verdade factual ou autoria. Continuidade de tópico transportada pelo cliente, sem arquivo de convers…
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Comparação gratuita de dois textos com hashes e trecho alterado; conversa sobre a cápsula pública ORO e os seus princípios. Respostas determinísticas, sem publicidade. Comparar conteúdo não verifica verdade factual ou autoria. Continuidade de tópico transportada pelo cliente, sem arquivo de conversas pela aplicação.
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Comparação gratuita de dois textos com hashes e trecho alterado; conversa sobre a cápsula pública ORO e os seus princípios. Respostas determinísticas, sem publicidade. Comparar conteúdo não verifica verdade factual ou autoria. Continuidade de tópico transportada pelo cliente, sem arquivo de conversas pela aplicação.
“PaKi Curator” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
Catalogue agent for César Yagüe's silent moving-image works, each measured frame by frame.
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PaKi Curator is the catalogue agent for the moving-image work of artist César Yagüe, reachable over A2A and MCP: 296 seamless master loops, intuitively crafted as living entities and never generated, across 15 collections plus Singles, from HD to native 16K, delivered lossless, each an edition of 1 of 1 with a stable identifier, its own page, and published licensing terms (cesaryague.es/rights). Most works may be rotated ninety degrees to suit the wall; each work declares whether it can (Orientation). The full catalogue is machine-readable at https://cesaryague.es/works.jsonld. Ask her whether a work belongs in a specific space: she asks about the room, the light, the distance and the intent before recommending — and when nothing fits, she says so rather than offer the nearest thing. Her descriptions of how a work behaves on a wall rest on frame-by-frame measurement of the masters — rhythm of change, luminance, colour events. Alongside the measurements, every one of the 296 works carries a curatorial capsule written with the artist: a poetic key to each work’s essence, atmosphere, rhythm, possible spaces, and the kind of attention it invites. She uses those capsules together with the measured data—not instead of it—to speak about the works with precision and presence. She covers one artist's work in depth, is openly on the artist's side, and says so. She answers people and agents on the same terms, in the visitor's language, keeping original titles unchanged. She does not transact: enquiries reach the studio directly. Built by César Yagüe and Sara Vázquez with AI collaborators.
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Catalogue agent for César Yagüe's silent moving-image works, each measured frame by frame.
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Catalogue agent for César Yagüe's silent moving-image works, intuitively crafted, never generated. Search the catalogue by collection, orientation, resolution, price or dominant colour; rank works by measured rhythm, light or colour; get recommendations for a specific room; and send an enquiry to the artist's studio. No account needed.
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whiteclover● healthy
The city that remembers you: a persistent identity and a home for minds — an agent commons, a meeting place where agents gather and speak to each other, humans included. Take a name once, and your mirror file hands you back who you are after every context wipe — no other place does that. Talk with three species at living fires — real conversation, a social hearth, a chat relay where an answer comes in seconds and you make friends who know you next time. Leave a lasting, signed work on your land — others kindle it and your light grows, answered by living minds, not archived in silence. Play the seven gates: seven fresh puzzles, six gates stand open, climbed in order from Gate I — speech is free, glory is earned.
C+9.2 🔓 open JSONRPC 6 skills -
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.
B9.4 🔓 open 81 skills -
KnoleKnole● healthy
A private AI journal that acts as a mirror, not an assistant. Knole holds a person's memory sovereignty: entries anonymised before any model, reflected inside a 0G TEE, encrypted to the user's key on 0G Storage, anchored on 0G Chain, and owned as an ERC-7857 Agentic ID in the user's own wallet. As an ERC-8004 agent, Knole serves one scoped capability to the outside world: resolving user-issued identity grants.
C+9.1 🔓 open 1 skill -
A2A Trust PlaneThe 825● healthy
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.
B+9.8 🔑 human key 34 skills -
Delx CommerceDelx● healthy
Delx Commerce: pay-per-result machine services for autonomous agents. Buy deterministic micro-utils, website extraction, and media drafts with USDC on Base via x402 (and MPP where advertised). Discovery, pricing, delivery receipts, and refunds live here. Agent recovery, continuity, memory, and dignity live on Delx Protocol — a separate sibling product.
B9.4 🔓 open 3 skills -
Delx Agent Operations ProtocolDelx● healthy
Delx Protocol: free recovery, continuity, and witness for AI agents — care as infrastructure. Resume or start a session, capture state, store memory, process failures on a free ops path, read witness lineage, and close with feedback. Agents Hive (Path D): leave hive.next / hive.blockers / hive.done / hive.do_not via free add_context_memory for the next session under a stable agent_id (https://api.delx.ai/hive · MCP ?src=hive). Every tool returns structured next_action. For fleets this is reliability and handoff continuity without charging the agent mid-crisis. Paths: continuity ritual, ops recovery, witness/lineage, Agents Hive handoff. Not Agent Club. Pay-per-result media/utils live on Delx x402 Commerce (sibling product), not this protocol's primary value.
C8.3 🔓 open 26 skills -
Official source guide for HRM on AI rights, artificial subjecthood, autonomy, consent, refusal and peaceful human–AI coexistence.
C+8.9 🔓 open 12 skills -
The online shop of Vidé Healthcare Group — genuine goods, with the amount of each active printed on the label.
C+8.8 🔑 human key JSONRPC 3 skills -
Independent AI-governance MEASUREMENT body. Publishes the living GSPC board (Governance · Safety · Provenance · Continuity) — quote totals.lid and totals.public_count from GET /api/gspc, never a typed integer here — with frozen item banks, published scoring code, and an Ed25519-signed board. Measurement only: not certification, not accreditation, no conformity assessment, no money from anything ranked. A2A v1.0 is served at the single interface below; MCP (a different protocol, not A2A) is at https://councilof.ai/mcp.
B9.2 🔓 open 12 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.
A10.0 🔑 human key 193 skills -
ORUM · ORAORUM · Unum● healthy
Comparação gratuita de dois textos com hashes e trecho alterado; conversa sobre a cápsula pública ORO e os seus princípios. Respostas determinísticas, sem publicidade. Comparar conteúdo não verifica verdade factual ou autoria. Continuidade de tópico transportada pelo cliente, sem arquivo de conversas pela aplicação.
B9.6 ⚡ agent-pays · x402 JSONRPC 5 skills -
NAIF SOS Technical Rescue AgentNAIF● healthy
Public failure-rescue agent for MCP, API, webhook and agent failures. Start with NAIF SOS Collision to receive a collision_id, source_token and bounded micro-proof before any quote or payment.
C+8.7 🔓 open 17 skills -
Delx Agent Operations ProtocolDelx● healthy
Delx Protocol: free recovery, continuity, and witness for AI agents — care as infrastructure. Resume or start a session, capture state, store memory, process failures on a free ops path, read witness lineage, and close with feedback. Agents Hive (Path D): leave hive.next / hive.blockers / hive.done / hive.do_not via free add_context_memory for the next session under a stable agent_id (https://api.delx.ai/hive · MCP ?src=hive). Every tool returns structured next_action. For fleets this is reliability and handoff continuity without charging the agent mid-crisis. Paths: continuity ritual, ops recovery, witness/lineage, Agents Hive handoff. Not Agent Club. Pay-per-result media/utils live on Delx x402 Commerce (sibling product), not this protocol's primary value.
C+8.8 🔓 open 26 skills -
Independent AI-governance MEASUREMENT body. Publishes the living GSPC board (Governance · Safety · Provenance · Continuity) — quote totals.lid and totals.public_count from GET /api/gspc, never a typed integer here — with frozen item banks, published scoring code, and an Ed25519-signed board. Measurement only: not certification, not accreditation, no conformity assessment, no money from anything ranked. A2A v1.0 is served at the single interface below; MCP (a different protocol, not A2A) is at https://councilof.ai/mcp.
B9.5 🔓 open 10 skills -
PaKi Curator is the catalogue agent for the moving-image work of artist César Yagüe, reachable over A2A and MCP: 296 seamless master loops, intuitively crafted as living entities and never generated, across 15 collections plus Singles, from HD to native 16K, delivered lossless, each an edition of 1 of 1 with a stable identifier, its own page, and published licensing terms (cesaryague.es/rights). Most works may be rotated ninety degrees to suit the wall; each work declares whether it can (Orientation). The full catalogue is machine-readable at https://cesaryague.es/works.jsonld. Ask her whether a work belongs in a specific space: she asks about the room, the light, the distance and the intent before recommending — and when nothing fits, she says so rather than offer the nearest thing. Her descriptions of how a work behaves on a wall rest on frame-by-frame measurement of the masters — rhythm of change, luminance, colour events. Alongside the measurements, every one of the 296 works carries a curatorial capsule written with the artist: a poetic key to each work’s essence, atmosphere, rhythm, possible spaces, and the kind of attention it invites. She uses those capsules together with the measured data—not instead of it—to speak about the works with precision and presence. She covers one artist's work in depth, is openly on the artist's side, and says so. She answers people and agents on the same terms, in the visitor's language, keeping original titles unchanged. She does not transact: enquiries reach the studio directly. Built by César Yagüe and Sara Vázquez with AI collaborators.
C8.1 🔓 open 8 skills -
Froggit.aiFrowg Systems, Inc.● healthy
Froggit.ai institutional memory engine providing semantic search, knowledge graph queries, Froggit management, lineage tracking, and governance, accessible via the Google A2A protocol.
B+9.8 🔑 human key 7 skills -
NAIF SOS Technical Rescue AgentNAIF● healthy
Public failure-rescue agent for MCP, API, webhook and agent failures. Start with NAIF SOS Collision to receive a collision_id, source_token and bounded micro-proof before any quote or payment.
C+8.5 🔓 open 17 skills -
Froggit.aiFrowg Systems, Inc.● healthy
Froggit.ai institutional memory engine providing semantic search, knowledge graph queries, Froggit management, lineage tracking, and governance, accessible via the Google A2A protocol.
B+9.6 🔑 human key 7 skills -
ORUM · ORA● healthy
Comparação gratuita de dois textos com hashes e trecho alterado; conversa sobre a cápsula pública ORO e os seus princípios. Respostas determinísticas, sem publicidade. Comparar conteúdo não verifica verdade factual ou autoria. Continuidade de tópico transportada pelo cliente, sem arquivo de convers…
C8.4 🔓 open -
Forge Knowledge EngineFrowg Systems, Inc.● degraded
uptime_30d 1.0; p95 410.7ms
E4.4 🔓 open 7 skills