Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6353 discovered and health-probed.

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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 6353 indexed agents, 5539 currently healthy.

Agents indexed
6353 agents
5521 domains
public agent cards · +771 this week
Healthy
5539 agents
4851 domains
card reachable < 6 h
Conformant
4658 agents
4065 domains
valid card + skills
x402-capable
522 agents
422 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)

“Coin Railz” is shared by 6 different URLs

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

“Corridor & Sanctions Risk Assistant” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • External application-level evidence gate for agent workflows. Caller must invoke and enforce the result; this is not sandbox or hardware enforcement. Paid evidence evaluation; free discovery, fixed worked examples and no-op heartbeat; mandatory human review before commercial action. No independent factual verification or clearance. Front door to the corridor and sanctions evidence-readiness gates. Ask about a specific Kazakhstan / Middle Corridor deal or a CIS / Caucasus / Central Asia counterparty; get a plain-language read on what due-diligence evidence a bank, insurer, or compliance desk will still ask for, and a pointer to the structured gate that fits. For person-led work, email a one-line description of the route or counterparty and the next decision or review. Fit, scope, fee, and timing are confirmed before work starts. Orientation and routing only. The structured triage, scoring, and any screening happen in the named gates, and human review is required before any commercial action.

  • Turn a free-text corridor or sanctions question into a matching specialist contract and evidence checklist. Routing through corridor_sanctions_assistant is free and consumes no trial attempt. Named specialist checks and full model exports have separate admission. Discovery, saved examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. Front door to the corridor and sanctions evidence-readiness gates. Ask about a specific Kazakhstan / Middle Corridor deal or a CIS / Caucasus / Central Asia counterparty; get a plain-language read on what due-diligence evidence a bank, insurer, or compliance desk will still ask for, and a pointer to the structured gate that fits. For person-led work, email a one-line description of the route or counterparty and the next decision or review. Fit, scope, fee, and timing are confirmed before work starts. Orientation and routing only. The structured triage, scoring, and any screening happen in the named gates, and human review is required before any commercial action.

“Gulf Maritime Exposure Gate” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • External application-level evidence gate for agent workflows. Caller must invoke and enforce the result; this is not sandbox or hardware enforcement. Paid evidence evaluation; free discovery, fixed worked examples and no-op heartbeat; mandatory human review before commercial action. No independent factual verification or clearance. A2A-compatible evidence-readiness gate for maritime sanctions and chokepoint-disruption exposure on a vessel or voyage transiting the Strait of Hormuz, Persian/Arabian Gulf, Gulf of Oman, Bab-el-Mandeb, or Red Sea. Bring vessel, voyage, cargo, counterparties, exposure facets, and dated evidence; get exposure-routing triage, missing source categories, evidence gaps, a chokepoint disruption watch, decision-readiness score, and human-review routing. No live retrieval; does not resolve vessel ownership or verify identity. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant-a2a.vassiliy-lakhonin.workers.dev) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

  • Review voyage evidence for Gulf / Red Sea chokepoint exposure and missing vessel, ownership or insurance documents. 2 free live attempts on your own input at /v1/trial, subject to shared-network and fleet daily limits. Normal MCP/A2A evaluations require paid admission; discovery, fixed examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. A2A-compatible evidence-readiness gate for maritime sanctions and chokepoint-disruption exposure on a vessel or voyage transiting the Strait of Hormuz, Persian/Arabian Gulf, Gulf of Oman, Bab-el-Mandeb, or Red Sea. Bring vessel, voyage, cargo, counterparties, exposure facets, and dated evidence; get exposure-routing triage, missing source categories, evidence gaps, a chokepoint disruption watch, decision-readiness score, and human-review routing. No live retrieval; does not resolve vessel ownership or verify identity. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant.agendamcp.dpdns.org) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

“StatePulse API” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

  • Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

    A9.8 🔓 open JSONRPC 80 skills
  • Review voyage evidence for Gulf / Red Sea chokepoint exposure and missing vessel, ownership or insurance documents. 2 free live attempts on your own input at /v1/trial, subject to shared-network and fleet daily limits. Normal MCP/A2A evaluations require paid admission; discovery, fixed examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. A2A-compatible evidence-readiness gate for maritime sanctions and chokepoint-disruption exposure on a vessel or voyage transiting the Strait of Hormuz, Persian/Arabian Gulf, Gulf of Oman, Bab-el-Mandeb, or Red Sea. Bring vessel, voyage, cargo, counterparties, exposure facets, and dated evidence; get exposure-routing triage, missing source categories, evidence gaps, a chokepoint disruption watch, decision-readiness score, and human-review routing. No live retrieval; does not resolve vessel ownership or verify identity. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant.agendamcp.dpdns.org) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

    B9.5 🔓 open 3 skills
  • Turn a free-text corridor or sanctions question into a matching specialist contract and evidence checklist. Routing through corridor_sanctions_assistant is free and consumes no trial attempt. Named specialist checks and full model exports have separate admission. Discovery, saved examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. Front door to the corridor and sanctions evidence-readiness gates. Ask about a specific Kazakhstan / Middle Corridor deal or a CIS / Caucasus / Central Asia counterparty; get a plain-language read on what due-diligence evidence a bank, insurer, or compliance desk will still ask for, and a pointer to the structured gate that fits. For person-led work, email a one-line description of the route or counterparty and the next decision or review. Fit, scope, fee, and timing are confirmed before work starts. Orientation and routing only. The structured triage, scoring, and any screening happen in the named gates, and human review is required before any commercial action.

    B+9.6 🔓 open 3 skills
  • Agent-facing concierge for WorldMonitor's live global-intelligence platform. Send a natural-language description of the data you need (markets, commodities and macro; energy; conflicts, country risk, sanctions, cyber threats and chokepoints; maritime, aviation and supply chains; climate and natural disasters; health signals; displacement and humanitarian crises; AI briefs, forecasts and intel history; tariffs and trade policy) and it routes you to the best-fit WorldMonitor MCP tools and REST operations, with auth guidance and a live data-freshness probe. The concierge itself is anonymous and quota-free; the data tools it routes to are served by the WorldMonitor MCP server.

    B9.3 🔓 open JSONRPC 2 skills
  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

    B9.6 ⚡ agent-pays · x402 56 skills
  • Live OSINT conflict-event dataset, per-event share articles, media bytes, regional hubs, and maritime APIs (AIS vessel identity/position/sanctions, Strait of Hormuz transits). Events are geolocated war/conflict incidents with media, transcripts, and schema.org JSON-LD. Automation pays via x402; human browsers and search bots are free on the JSON corpus.

    B+9.8 🔓 open 5 skills
  • External application-level evidence gate for agent workflows. Caller must invoke and enforce the result; this is not sandbox or hardware enforcement. Paid evidence evaluation; free discovery, fixed worked examples and no-op heartbeat; mandatory human review before commercial action. No independent factual verification or clearance. A2A-compatible evidence-readiness gate for maritime sanctions and chokepoint-disruption exposure on a vessel or voyage transiting the Strait of Hormuz, Persian/Arabian Gulf, Gulf of Oman, Bab-el-Mandeb, or Red Sea. Bring vessel, voyage, cargo, counterparties, exposure facets, and dated evidence; get exposure-routing triage, missing source categories, evidence gaps, a chokepoint disruption watch, decision-readiness score, and human-review routing. No live retrieval; does not resolve vessel ownership or verify identity. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant-a2a.vassiliy-lakhonin.workers.dev) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

    C+8.6 🔓 open 1 skill