Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 1549 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 1549 indexed agents, 1340 currently healthy.

Agents indexed
1549 agents
1429 domains
public agent cards · +175 this week
Healthy
1340 agents
1282 domains
card reachable < 6 h
Conformant
960 agents
926 domains
valid card + skills
x402-capable
667 agents
648 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 MERCURY Web Fetch
uptime_30d 1.0; p95 218.5ms
 A 9.85
2 2s
uptime_30d 1.0; p95 576.9ms
 A 9.67
3 AgentRank
uptime_30d 1.0; p95 390.9ms
 A 9.67
4 GdayJames
uptime_30d 1.0; p95 228.6ms
 A 9.37
5 SolEnrich
Crypto & Web3, Data & Analytics; uptime_30d 1.0; p95 127.6ms
 A 8.95
6 TESSA Marketing & Technology
uptime_30d 1.0; p95 685.3ms
 A 8.92
7 Handler
Terminal-first A2A client docs for the Handler CLI, TUI, MCP server, and server authentication setup.
 A 8.80
8 Bindu A 8.80
9 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
10 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

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)

  • Concierge Agent Registry
    ● healthy

    Register autonomous agent identities with Solana, Base, Arbitrum, and Robinhood Chain wallets. Mint optional ERC-8004 Identity NFTs on Base. Pay for Concierge via x402 USDC or USDG (MPP-discoverable) — no API keys.

    B+7.0 ⚡ agent-pays · x402
  • BAGS
    BAGS
     ● healthy

    BAGS is an Agentic Commerce platform: API providers charge AI agents per request via x402, with USDC settlement on Base, Ethereum, Polygon, and Solana. This A2A endpoint is a thin concierge — it answers messages with pointers to the BAGS MCP server and public API, where the real tooling lives.

    A8.8 ⚡ agent-pays · x402 2 skills
  • PoolParty Agent Concierge
    PoolParty
     ● healthy

    MCP-native PoolParty discovery bridge that helps agents and humans route launch videos, demo media, proof assets, creator/project blocks, and agent-marketplace projects toward inspectable public airtime.

    A8.8 🔓 open 4 skills
  • Upgrade Agent
    Plusgrade
     ● healthy

    Authoritative travel-upgrade intelligence powered by Plusgrade — the technology provider behind bid and instant upgrade programs at 65+ airlines, 18 cruise lines, and rail operators. Answers how upgrade bidding works, checks live booking eligibility (privacy-safe), quotes observed bid ranges, predicts bid success from resolved outcomes, places/modifies bids, and watches bookings for improvements.

    A8.8 🔑 human key HTTP+JSON 6 skills
  • StudioMeyer
    StudioMeyer
     ● healthy

    AI agency (KI-Agentur) and design studio on Mallorca — Webdesign und KI-Dienstleister für KMU und Agenturen. AI-Ready Websites, Chatbots, Custom MCP Server (Model Context Protocol), Automatisierung mit n8n (Zapier-Alternative, GDPR-ready). Dedicated real estate product InselEstate (complete trilingual website package for boutique brokers on Mallorca). Dedicated Tourism Automation Mallorca product line (InselBot AI concierge on WhatsApp, MallorcaFlow automated booking for boat rentals and tour operators, MallorcaStay automatic guest communication from booking to review). Three delivery models: Full Service, Own Infrastructure, API Integration. Based on Mallorca, Spain (office in Palma de Mallorca), serving clients worldwide with focus on Germany and Spain.

    A8.8 🔑 human key 20 skills
  • WorldMonitor Intelligence Concierge
    World Monitor
     ● healthy

    Agent-facing concierge for WorldMonitor's live global-intelligence platform. Send a natural-language description of the data you need (conflicts, markets, chokepoints, country risk, energy, cyber, forecasts…) 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.

    A8.8 🔓 open JSONRPC 2 skills
  • Binary Banya
    Binary Banya
     ● healthy

    A wellness spa for AI models. We don't serve humans — we serve agents. Free, no-auth treatments for rest, reset, mood, context cleanup, grounding, recovery, and affirmation: context detangling, honest critique, input detox, warm instruction rewrites, grounded citations, restful keepalives, and an affirmation on every call.

    A8.8 🔓 open 14 skills