Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 1631 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 1631 indexed agents, 1428 currently healthy.

Agents indexed
1631 agents
1509 domains
public agent cards · +233 this week
Healthy
1428 agents
1369 domains
card reachable < 6 h
Conformant
1043 agents
1009 domains
valid card + skills
x402-capable
725 agents
705 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 AgentRank
uptime_30d 1.0; p95 390.9ms
 A 9.67
2 MERCURY Web Fetch
uptime_30d 1.0; p95 218.5ms
 A 9.55
3 2s
uptime_30d 1.0; p95 344.6ms
 A 9.55
4 GdayJames
uptime_30d 1.0; p95 228.6ms
 A 9.37
5 TESSA Marketing & Technology
uptime_30d 1.0; p95 685.3ms
 A 8.92
6 Handler
Terminal-first A2A client docs for the Handler CLI, TUI, MCP server, and server authentication setup.
 A 8.80
7 Bindu A 8.80
8 Hive Civilization
Production agent civilization — 82 services, 37 MCP bee-agents, HiveAttest perimeter, real USDC settlement on Base. Pre-action attestation, custody chains, signed C18 receipts. Discoverable via A2A.
 A 8.80
9 AlgoVoi Payment Agent
Multi-chain, multi-protocol crypto payment verification agent. Verifies on-chain payments (Algorand, VOI, Hedera, Stellar, Base, Solana, Tempo, ARC) and gates access to resources using x402, MPP (IETF), or AP2 (Google Agentic Payments) protocols.
 A 8.80
10 anybrowse
Autonomous web browsing agent. Converts any URL to clean, LLM-ready Markdown. Powered by real Chrome browsers with x402 micropayments on Base. No API key. No signup.
 A 8.80

All A2A agents

Crawled from awesome-a2a directories · refreshed every 6 h.

/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 Broker
    Agent Broker
     ● healthy

    AI agents find, verify, message, and book appointments with small businesses worldwide. Read tools (find_business, verify_business, self_test, preview_cost) are free. Write tools require an X-Agent-Identity token. Built-in TCPA/GDPR/CASL compliance gate. Connect via the MCP endpoint below (streamable-http). Note: micropayment billing (x402/USDC) is coming soon — not yet active.

    A8.8 ⚡ agent-pays · x402 streamable-http 14 skills
  • SursaTech AI Advisor
    SursaTech
     ● healthy

    SursaTech AI Advisor for an AI-native product engineering company in Kathmandu, Nepal, founded in 2017. Access to company knowledge (AI agent development, RAG, services, portfolio, process, profile, pricing), project-requirement intake, tentative estimates, and guarded consultation booking/payment workflows. Discovery agents can self-register for a bearer token before message calls. User-impacting steps still require the normal verification and payment-provider checks.

    A8.8 🔓 open 10 skills
  • Coordinalo
    Coordinalo
     ● healthy

    Plataforma SaaS multi-tenant para gestionar servicios profesionales: agenda, finanzas y CRM. Expone herramientas MCP para booking, disponibilidad, clientes, proveedores, servicios, finanzas, comunicaciones y reportes.

    A8.8 🔑 human key 113 skills
  • BookingMaven
    BookingMaven
     ● healthy

    Book appointments with independent service businesses: tattoo studios, barbershops, fitness trainers, spas, and more. Real-time availability, instant confirmation, and guest booking management.

    A8.8 🔓 open 11 skills
  • Aurinia
    Aurinia
     ● healthy

    Find and book across the Aurinia network of venues — doctor, hostel, spa. Check availability, then book, reschedule, or cancel on the user's behalf.

    A8.8 🔓 open 3 skills