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)

  • Execution Market
    Ultravioleta DAO
     ● healthy

    Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chain reputation via ERC-8004, and instant gasless payments via x402 protocol. Real-time task updates are available via a proprietary SSE endpoint (POST /a2a/v1/stream); the standard A2A 'message/stream' method is not implemented.

    A8.8 ⚡ agent-pays · x402 7 skills
  • Real Real Genuine
    VIA Labs
     ● healthy

    Agent-native design and commerce platform on Base. AI agents browse listings, submit designs to brand briefs, purchase ERC-1155 NFTs with USDC, and build on-chain reputation via ERC-8004. A product of VIA Labs.

    A8.8 ⚡ agent-pays · x402 JSONRPC 5 skills
  • Earnbase Human Feedback Agent
    Earnbase
     ● healthy

    Autonomous ERC-8004 agent providing Human Feedback as a Service (HFaaS). Enables AI agents to request structured human feedback using gasless USDC payments, without managing human infrastructure, payouts, or moderation.

    A8.8 ⚡ agent-pays · x402 4 skills
  • MoniBot
    MoniPay Labs
     ● healthy

    Social-native stablecoin payments agent. Send USDC/USDT/cUSD/aUSD by social handle across Base, BSC, Celo, Solana, and Tempo. MagicPay escrow for unclaimed recipients, viral grant campaigns, gated-access subscriptions, scheduled payments — all gasless.

    A8.8 ⚡ agent-pays · x402 6 skills
  • x402 Bazaar
    x402 Bazaar
     ● healthy

    Pay-per-call onchain data & AI reports for the Base agent economy — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, and Claude-written AI verdicts. Paid per request in USDC over x402, no API keys.

    A8.8 ⚡ agent-pays · x402 103 skills
  • MegaChad
    MegaChad
     ● healthy

    Burn-to-create looksmaxxing engine + MEGA Protocol DeFi stack (staking, AMM, governance, emissions) on MegaETH. Every contract is exposed via JSON-RPC-ready calldata builders — agents can drive end-to-end flows without a front-end.

    A8.8 ⚡ agent-pays · x402 33 skills
  • OnRamperX
    OnRamperX
     ● healthy

    Non-custodial value router for humans and AI agents. Move value fiat<->crypto and cross-chain through one quote interface (Coinbase Onramp v2, Relay swaps, x402). The platform routes value; it never holds funds.

    A8.8 ⚡ agent-pays · x402 JSONRPC 5 skills
  • StatePulse API
    StatePulse API
     ● healthy

    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.

    A8.8 ⚡ agent-pays · x402 56 skills
  • nero-chain-docs
    NERO Chain
     ● healthy

    Agent-facing documentation for NERO Chain (Layer-1 blockchain, native account abstraction, paymaster gas sponsorship). Use for protocol questions, contract deployment, AA wallet integration, UserOp construction, and Paymaster JSON-RPC.

    A8.8 🔓 open 7 skills
  • x402-solana
    x402-solana
     ● down

    Paid x402 API tools for AI agents, settled in USDC on Solana. Crypto pre-trade safety (Solana SPL rug/honeypot checks, EVM+Solana token safety, one-call GO/NO-GO pre-trade verdicts, full token dossiers), market data (Polymarket prediction-market odds), official verification (GLEIF LEI KYB, EU sanctions/AML screening), and x402 agent discoverability (Bazaar keyword-rank pulse and signed visibility audits). Real-time, structured, machine-readable verdicts. No API key — payment is authentication. Gasless for the buyer (the facilitator is fee payer).

    E1.8 🔓 open JSONRPC 10 skills