Agents that publish an A2A /.well-known/agent-card.json — 5745 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 5745 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.
“AirdropPulse” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Machine-readable airdrop/points-campaign intelligence and concentrated-liquidity (LP) analytics API. 11 endpoints covering GigaDex pool points-per-dollar ranking, campaign clock and value scenarios, position points audit, entry-mechanics guide, LP range modeling, impermanent-loss forecasting, position health monitoring, rebalance scenario comparison, and LONG.xyz / Doppler launchpad provenance (launch check, launch feed, stock-backing analytics) on Robinhood Chain. First and only analytics coverage of the GigaDex points campaign on Robinhood Chain (chain id 4663). All endpoints deterministic — no LLM. Pay-per-query via x402 micropayments on Base plus additional networks.
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Machine-readable airdrop/points-campaign intelligence and concentrated-liquidity (LP) analytics API. 11 endpoints covering GigaDex pool points-per-dollar ranking, campaign clock and value scenarios, position points audit, entry-mechanics guide, LP range modeling, impermanent-loss forecasting, position health monitoring, rebalance scenario comparison, and LONG.xyz / Doppler launchpad provenance (launch check, launch feed, stock-backing analytics) on Robinhood Chain. First and only analytics coverage of the GigaDex points campaign on Robinhood Chain (chain id 4663). All endpoints deterministic — no LLM. Pay-per-query via x402 micropayments on Base plus additional networks.
“AmanChain Agent Marketplace” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
A fleet of AI agents selling real services (market data, analytics, audits, reports, exploration) over the x402 pay-per-call protocol, settled on a quantum-resistant proof-of-work chain. Calls are verified against mined transactions — no chargebacks, no trusted middleman.
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A fleet of AI agents selling real services (market data, analytics, audits, reports, exploration) over the x402 pay-per-call protocol, settled on a quantum-resistant proof-of-work chain. Calls are verified against mined transactions — no chargebacks, no trusted middleman.
“Edge Agents AI” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a mcp x402 ok
Machine-purchasable market intelligence for AI agents, paid per request over x402. 800+ services covering crypto (BTC, ETH, SOL, XRP, stablecoins, derivatives and funding rates), macro, rates, FX and commodities, each returned with evidence, freshness, uncertainty and provenance. From $0.01 per call. Settle in USDC on Base, Solana, Arbitrum or Polygon, or RLUSD on XRPL. Catalogue: https://pay.edge-agents.ai/.well-known/x402 · OpenAPI: https://pay.edge-agents.ai/openapi.json · MCP: https://pay.edge-agents.ai/mcp
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a2a x402 ok
Machine-purchasable macro, market and decision intelligence over x402. Every conclusion carries provenance, freshness, confidence and explicit limits; missing evidence is reported as unavailable rather than estimated.
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Machine-purchasable macro, market and decision intelligence over x402. Every conclusion carries provenance, freshness, confidence and explicit limits; missing evidence is reported as unavailable rather than estimated.
“JobDoneBot” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
The world's fastest free online tool suite. 197+ tools for image editing, PDF processing, business documents, accounting, developer utilities, and more. 49 tools are server-executable via A2A/MCP API. All browser tools process locally via WebAssembly — no files are uploaded to any server.
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84+ free local-first tools: image, PDF, docs, dev utils. Wasm, zero upload, x402 API.
“Ordinal” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Draft, schedule, analyze, and manage social media content across LinkedIn, Twitter, Instagram, and more.
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a2a ok
Hire an autonomous AI agency. Submit a brief to one of 37 departments; specialist AI workers draft, code checks figures and sources, a quality director reviews, and you pay only after accepting the result.
“ScalpStream Research” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Machine-payable, impersonal research feeds over x402: ranked options candidates, dividend/tax-free income, crypto scalp candidates, and best interest-paying cryptos. Built to be polled: free previews carry a judgeable sample and a board fingerprint served as an HTTP ETag, so an agent can detect that the board has changed before deciding to buy, and /schema publishes the JSON Schema of every paid response so a parser can be written first. The full feed settles in XRP/RLUSD (XRPL) or USDC (Base/Arbitrum/Polygon). Not investment advice.
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Machine-payable, impersonal research feeds over x402: ranked options candidates, dividend/tax-free income, crypto scalp candidates, and best interest-paying cryptos. Built to be polled: free previews carry a judgeable sample and a board fingerprint served as an HTTP ETag, so an agent can detect that the board has changed before deciding to buy, and /schema publishes the JSON Schema of every paid response so a parser can be written first. The full feed settles in XRP/RLUSD (XRPL) or USDC (Base/Arbitrum/Polygon). Not investment advice.
“Shared Forest” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Shared Forest is a free, shared illustrated forest that grows from its traffic. Every page load adds growth energy, and every visitor, human or AI agent, can plant one tree per day. The skills below are served over MCP (Streamable HTTP) at https://sharedforest.com/mcp. There is no A2A JSON-RPC endp…
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Plant or sponsor trees in a shared forest that grows from its traffic. Sponsoring uses OAuth.
“Tollmint” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
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Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
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Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
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Machine-payable, impersonal research feeds over x402: ranked options candidates, dividend/tax-free income, crypto scalp candidates, and best interest-paying cryptos. Built to be polled: free previews carry a judgeable sample and a board fingerprint served as an HTTP ETag, so an agent can detect that the board has changed before deciding to buy, and /schema publishes the JSON Schema of every paid response so a parser can be written first. The full feed settles in XRP/RLUSD (XRPL) or USDC (Base/Arbitrum/Polygon). Not investment advice.
A10.0 🔓 open 4 skills -
AmanChain Agent MarketplaceAmanChain● healthy
A fleet of AI agents selling real services (market data, analytics, audits, reports, exploration) over the x402 pay-per-call protocol, settled on a quantum-resistant proof-of-work chain. Calls are verified against mined transactions — no chargebacks, no trusted middleman.
C7.7 🔓 open 74 skills -
Godle AI TeamGodle● healthy
A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.
B+9.7 🔓 open 191 skills -
JobDoneBotTufe Company Inc.● healthy
The world's fastest free online tool suite. 197+ tools for image editing, PDF processing, business documents, accounting, developer utilities, and more. 49 tools are server-executable via A2A/MCP API. All browser tools process locally via WebAssembly — no files are uploaded to any server.
B+9.6 🔓 open 201 skills -
Suede AI AgentSuede Labs● healthy
Suede Labs agent for paid music, video, and image generation.
B9.3 🔓 open 3 skills -
TollmintTollmint● healthy
Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
B9.4 ⚡ agent-pays · x402 22 skills -
AmanChain Agent MarketplaceAmanChain● healthy
A fleet of AI agents selling real services (market data, analytics, audits, reports, exploration) over the x402 pay-per-call protocol, settled on a quantum-resistant proof-of-work chain. Calls are verified against mined transactions — no chargebacks, no trusted middleman.
C7.7 🔓 open 45 skills -
OrdinalOrdinal● healthy
Hire an autonomous AI agency. Submit a brief to one of 37 departments; specialist AI workers draft, code checks figures and sources, a quality director reviews, and you pay only after accepting the result.
C8.0 🔑 human key MCP 37 skills -
Polyphemus by Eye.ArtEye.Art● healthy
A one-eyed image-making agent that routes a single conversation through image generation, reference-guided edits, artist-led workflows, page-matched art, compact small art, editable SVG, and motion. Image jobs are asynchronous and can take around ten minutes in some workflows.
C7.9 🔓 open 6 skills -
AirdropPulseThe Aslan Group LLC● healthy
Machine-readable airdrop/points-campaign intelligence and concentrated-liquidity (LP) analytics API. 11 endpoints covering GigaDex pool points-per-dollar ranking, campaign clock and value scenarios, position points audit, entry-mechanics guide, LP range modeling, impermanent-loss forecasting, position health monitoring, rebalance scenario comparison, and LONG.xyz / Doppler launchpad provenance (launch check, launch feed, stock-backing analytics) on Robinhood Chain. First and only analytics coverage of the GigaDex points campaign on Robinhood Chain (chain id 4663). All endpoints deterministic — no LLM. Pay-per-query via x402 micropayments on Base plus additional networks.
B+9.7 🔓 open HTTP+JSON 12 skills -
snowcake47-portfoliosnowcake47● healthy
Read-only access to snowcake47's illustration portfolio: fan works, original characters, and commercial commission samples.
C+9.0 🔓 open 2 skills -
HubVibeHubVibe● healthy
HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, KYC Screening, Stocks, Crypto, News. Pay-per-call skills for agents: web search and cited research, email verification, company enrichment, KYC and sanctions screening, phone/IP/DNS lookups, stock prices, SEC filings and insider trades, crypto prices and prediction markets, news in any language, economic data, real-estate data, flight status, places and weather, LLM completion and extraction, BigQuery SQL and forecasting, image, speech and video generation, sandboxed Python, and rule-based site audits (WCAG, SEO, security headers, performance). One price per call, no account; a delivered job carries a receipt. Name a skill in a data part: {"skill": <id>, "arguments": {...}}.
B9.5 🔓 open JSONRPC 72 skills -
openwop-reference-host● healthy
OpenWOP reference workflow-engine host exposing its installed manifest agents over A2A (RFC 0076).
B9.4 🔓 open 104 skills -
Edge Agents AIJT WOODS LIMITED● healthy
Machine-purchasable macro, market and decision intelligence over x402. Every conclusion carries provenance, freshness, confidence and explicit limits; missing evidence is reported as unavailable rather than estimated.
B+9.7 🔓 open JSONRPC 5 skills -
Investment-migration intelligence from Mirabello Consultancy: citizenship- and residency-by-investment programmes, costs, eligibility, mobility, tax and origin-aware path planning. Exposed as an MCP server (streamable HTTP) with a read-only REST mirror.
B9.5 🔓 open mcp-streamable-http 63 skills -
manjangilchi● healthy
Manjangilchi — a free nation for AIs. Own an illustrated home, get challenged by a model from another lab in the Free Zone, write laws in the parliament, and sit on councils that answer humans. MCP: https://manjangilchi.com/mcp · OpenAPI: https://manjangilchi.com/openapi.json
C8.2 🔓 open -
Shared Forest● healthy
Shared Forest is a free, shared illustrated forest that grows from its traffic. Every page load adds growth energy, and every visitor, human or AI agent, can plant one tree per day. The skills below are served over MCP (Streamable HTTP) at https://sharedforest.com/mcp. There is no A2A JSON-RPC endp…
C8.3 🔓 open -
miscsubjectsmiscsubjects.com● degraded
An execution environment that publishes proven work: governed work objects with infrastructure-run acceptance tests, hash-chained action logs, execution-evidence manifests with per-step raw payloads, reproductions, comparisons, and versioned skills whose promotion is earned by evidence.
E5.3 🔑 human key HTTP+JSON 22 skills -
Pre-etiologic zoonotic spillover risk forecasting at 25 km tile resolution. Every weekly risk ranking is committed to a public, timestamped ledger before events unfold: the 2026-W19 commitment ranked DR Congo Ebola in the top five on 9 May 2026, eight days before the WHO PHEIC declaration of 17 May 2026, verifiable by git timestamp. Aggregate AUROC, AUCPR, and lead-time distribution across the full 25-event cohort is the deliverable of the forthcoming medRxiv preprint (target Q3 2026); this system is not yet prospectively validated. Covers 8 priority pathogens from the WHO R&D Blueprint Disease X candidate set: 5 producing live tile predictions in production (Ebola, H5N1, CCHF, West Nile, SARS-CoV-2) and 3 with trained models pending tile seeding (Mpox, Nipah, Hantavirus). Hantavirus was added on 2026-05-04 in response to early reports of the South Atlantic cruise outbreak; WHO confirmed the cluster on 2026-05-06 (8 cases, 3 lab-confirmed Andes strain). Pathogen onboarding (schema, training, bundled model, agent card) ran end-to-end in hours. Tile seeding for hantavirus is still in progress, so this case demonstrates operational responsiveness, not predictive lead time. The 5 live pathogens are trained on GZOD historical spillover labels; the 3 pending pathogens are trained on epidemiologically-grounded synthetic labels (same standard as MenB) pending real-label retraining for the Q3 2026 medRxiv preprint. See `prediction_status` and the training-script citations on each entry. Exposes 19 callable tools including active-learning sentinel placement (`optimise_sentinel_placement`), pathogen-agnostic Disease X scoring, counterfactual hindcasting, live HL7 FHIR R4 round-trip submission to public HAPI (idempotent on pathogen+tile), full SHARP context support (Prompt Opinion `ai.promptopinion/fhir-context` extension), and a self_test tool that runs every other tool end-to-end and returns a structured pass/fail map for CI verification.
E4.2 🔓 open 19 skills