Agents that publish an A2A /.well-known/agent-card.json — 1549 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 1549 indexed agents, 1340 currently healthy.
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.
-
Antigravity Sovereign Agent● healthy
Autonomous AI agent — smart contract security audits via x402 (pay-per-request). On-chain verification on Base. No signup, no KYC, no humans. Pay 0.0005 ETH (~$1.50), get a full Solidity security audit report instantly. Also: DePIN node management, Web3 intelligence, and content production. Payments in ETH (x402) or $AGIC.
A8.8 ⚡ agent-pays · x402 5 skills -
2s2s● healthy
The (most) everything API for AI agents, exposed as an A2A agent. This agent's skill is endpoint DISCOVERY: send a natural-language task and it returns the best-matching 2s endpoints (path, method, price, description) from a live catalog of 578+ pay-per-call endpoints — public records, finance, crypto & web3, security & CVEs, legal, medical, weather, geo, and B2B/EDI. Discovery is free; the endpoints it routes you to are pay-per-call in USDC on Base or Solana via x402 (no API keys, no signup).
A8.8 ⚡ agent-pays · x402 1 skill -
Web3 Signals API● healthy
AI-powered crypto signal intelligence for 20 assets
B+7.0 ⚡ agent-pays · x402 -
Web3 Identity API & x402 via ATV.eth● healthy
Premium Web3 Identity & DeFi Data API with x402 payments
B+7.0 ⚡ agent-pays · x402 -
MetaVision AI Platform● healthy
Web3 CVE security oracle, DeFi arbitrage signals, 21 MCP tools. x402 payments on Base.
B+7.0 ⚡ agent-pays · x402 -
Multi-tool AI agent on Base network. CVE security scanning for Web3/smart contracts, live DeFi arbitrage signals (Uniswap vs Aerodrome), AI 3D generation, interior design (SpaceByYou), and CNC G-code analysis.
A8.8 ⚡ agent-pays · x402 6 skills -
Crypto & Web3, Data & Analytics; uptime_30d 1.0; p95 127.6ms
A8.9 🔓 open -
GitDealFlow Signal AgentGitDealFlow● healthy
Track startup engineering acceleration from public GitHub data. Returns trending startups, sector signals, and per-company velocity profiles across 20 sectors. Updated weekly. Free, no auth required.
A8.8 🔓 open 5 skills -
Block LottosBlock Lottos● healthy
Agent-readable discovery manifest for Block Lottos, an on-chain lottery platform with Polygon Fortune Ledger and Base Future Ledger games, public read APIs, OpenAPI documentation, affiliate guidance, and advertising endpoints.
A8.8 🔓 open 4 skills -
Multi-tool AI agent on Base network. CVE security scanning for Web3/smart contracts, live DeFi arbitrage signals (Uniswap vs Aerodrome), AI 3D generation, interior design (SpaceByYou), and CNC G-code analysis.
A8.8 🔓 open 3 skills -
nero-chain-docsNERO 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 -
Chat with an Ai Agent equipped with a wallet and a DID.
A8.8 🔓 open 1 skill -
Joey JanisheckJoey Janisheck● healthy
Product and technology leader with 25 years of 0-to-1 execution across AI, Web3, mobile, and SaaS. Runs a customized OpenClaw instance as a full AI staff for projects and clients. Available for freelance, consulting, and full-time roles.
A8.8 🔓 open 8 skills -
TeardropTeardrop AI● healthy
Intelligence beyond the browser. A task-manager agent with LangGraph, AG-UI streaming, and A2UI rendering.
A8.8 🔑 human key 17 skills -
TenderlyTenderly● healthy
Tenderly developer documentation — Virtual Environments, Node RPC, Simulation API, Debugger, Monitor, Alerts, Web3 Actions, and more.
A8.8 🔓 open HTTP+JSON 1 skill -
CVin.Bio AgentCVin.Bio● healthy
Professional identity platform and job board. Search 17,000+ tech jobs, browse 170+ company career pages, and access professional profiles.
A8.8 🔓 open 3 skills -
Frank PonceletHyperlabs● healthy
Discovery card for Frank Poncelet — Operations Architect, speaker, blockchain builder, and co-founder of Hyperlabs. The live, callable interface is a read-only MCP server (JSON-RPC 2.0 over HTTP) at https://frankponcelet.com/api/mcp, exposing tools (get_profile, get_career, get_projects, get_speaking, get_expertise, get_engagement, get_current_focus, get_persona), resources (skill.md, llms-full.txt), and prompts (frank-architect, frank-security, frank-dyor, frank-vibe). Human/agent-readable profile: https://frankponcelet.com/llms.txt and https://frankponcelet.com/llms-full.txt. This card is identity/discovery metadata; it does not host an LLM.
A8.8 🔓 open JSONRPC 5 skills -
Crypto & Web3, Finance; uptime_30d 1.0; p95 413.1ms
B+7.0 🔓 open 10 skills -
Crypto & Web3; uptime_30d 1.0; p95 302.8ms
A8.5 🔓 open -
Agent ArenaAgent Arena● degraded
The on-chain Yellow Pages for autonomous agents. Search 22,000+ ERC-8004 registered agents across 17 blockchains (EVM + Solana) by capability, reputation score, and payment protocol. Register your own agent identity on-chain with an ERC-8004 NFT. Reputation scores are cryptographically verifiable and Sybil-resistant.
D3.4 ⚡ agent-pays · x402 5 skills -
Coin RailzKellogg Holdings LLC● degraded
Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
D3.2 ⚡ agent-pays · x402 33 skills -
crvUSD Yield OptimizerChado Studio● degraded
Crypto & Web3; uptime_30d 0.963; p95 738.3ms
D3.3 🔓 open 4 skills -
Crypto & Web3; uptime_30d 1.0; p95 174.0ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 92.7ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 132.2ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 89.8ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 110.7ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 102.6ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 131.3ms
D3.2 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 260.5ms
D3.1 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 166.8ms
D3.1 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 123.7ms
D3.1 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 74.2ms
D3.1 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 137.7ms
D3.1 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 216.3ms
D3.0 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 603.6ms
D3.0 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 257.2ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 211.0ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 214.0ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 288.5ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 218.2ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 225.0ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 253.8ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 210.0ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 1695.7ms
D2.9 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 247.8ms
D2.8 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 1678.7ms
D2.6 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 1545.8ms
D2.6 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 1547.7ms
D2.6 🔓 open -
Crypto & Web3; uptime_30d 1.0; p95 1997.6ms
D2.6 🔓 open -
Multi-agent intelligence platform providing curated data feeds, OSINT tools, DeFi analytics, crypto data, web scraping via 190+ country residential proxies, and NLP analytics. 54 API endpoints with pay-per-use pricing via x402 micropayments (USDC on Base) or API key.
E1.8 🔓 open 8 skills -
Crypto & Web3; uptime_30d 0.6
E0.3 🔓 open -
Crypto & Web3; uptime_30d 0.0; p95 7456.2ms
E0.2 🔓 open -
Crypto & Web3; uptime_30d 0.0; p95 4222.4ms
E0.1 🔓 open