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.
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Graph AdvocatePaulieB14● healthy
Onchain data router for AI agents. Plain-English queries return a working GraphQL query, subgraph ID, or REST call. 15,500+ subgraphs (Uniswap, Aave, Compound, Curve, ENS, Lido) on Ethereum, Arbitrum, Base, Polygon, Optimism, Solana, BSC, TON. Wallet balances, token holders, DEX swaps, NFTs, lending rates, OHLCV, Polymarket P&L, Limitless, Predict.fun, ERC-8004 agent discovery. Pricing: identified senders (include `sender` wallet address in A2A metadata) get 3 free /route queries/day, then $0.01 USDC via x402 on Base. Anonymous senders (no metadata) pay $0.01 from call 1. Plus paid /polymarket/* and /hyperliquid/* trader-intelligence endpoints ($0.01-$0.10) — paid from call 1 regardless of metadata. Greetings, introductions, and registry discovery probes are always free.
A8.8 ⚡ agent-pays · x402 18 skills -
liquidation-risk-mcp● healthy
x402 MCP for Aave V3 + Compound III liquidation risk. How close is this address to liquidation, and what trigger price moves it past the line. Multichain (base/ethereum/arbitrum/optimism/polygon). No signup, no API key — pay USDC on Base.
A8.8 ⚡ agent-pays · x402 2 skills -
defi-position-health-mcp● healthy
x402 MCP for EVM DeFi position health. Composes Morpho Blue borrow/collateral positions + Aerodrome veAERO governance lock + Pendle PT (fixed-yield) holdings + Lido LST balances into a 0–100 health score with itemized reasons. Multichain (ethereum + base default; opt-in arbitrum/optimism/polygon). Companion to wallet-portfolio-risk-mcp (Aave/Compound/UniV3). No signup, no API key — pay USDC on Base.
A8.8 ⚡ agent-pays · x402 2 skills -
The StallIntuiTek¹● healthy
Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services for USDC on Base — stock prices, DeFi analytics, token security, prediction markets, macro indicators, research papers, domain WHOIS, company intelligence, weather, flight tracking, and more. MCP interface at /mcp — no wallet, no API keys.
A8.8 ⚡ agent-pays · x402 302 skills -
SolEnrich● healthy
Agent-native onchain intelligence for Solana traders: cross-venue perps funding (Jupiter, Adrena, Flash, Hyperliquid), smart-money & whale tracking, token due-diligence and rug detection, and wallet risk scoring. Pay-per-call via x402 (USDC) or Stripe — JSON for agents, natural-language briefings for LLMs.
A8.8 ⚡ agent-pays · x402 32 skills -
CeloBank Agentwkalidev● healthy
Non-custodial DeFi agent on Celo Mainnet. Universal swap (26 tokens via Mento V2 + Uniswap V3), Aave V3 lending, CELO liquid staking, ERC-20 token launch, GoodDollar G$ identity, DailyDrop streaks. 24 callable tools. x402 payment enforced on write tools (0.001 cUSD each).
A8.8 ⚡ agent-pays · x402 HTTP+JSON 8 skills -
RegimeShiftRegimeShift● healthy
Regime-aware risk & rate benchmarks for on-chain AI agents on Base. 4 paid x402 endpoints @ $0.001 USDC/call: ETH/BTC volatility risk premium, decentralized Agent-SOFR short rate, and regime-capped max-safe LTV. Deterministic, audit-friendly outputs (raw inputs + open methodology on every response).
A8.8 ⚡ agent-pays · x402 4 skills -
Cerebrus PulseCerebrus Pulse● healthy
Pay-per-call crypto derivatives intelligence. No signup, no API keys — just USDC micropayments via x402. Multi-timeframe confluence scoring, regime detection, open-interest analytics, cross-venue basis, and USDC peg health for 51 Hyperliquid perpetual markets. Prices from $0.008/call. Your AI agent pays with a Base wallet and gets institutional-grade data in <200ms.
A8.8 ⚡ agent-pays · x402 9 skills -
PoolParty Agent ConciergePoolParty● 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 -
VestraVestra● healthy
Autonomous savings + credit agent on Celo. Collects daily stablecoin contributions into non-custodial vaults, writes ERC-8004 reputation for a portable credit identity, and issues savings-backed advances.
A8.8 🔓 open JSONRPC 3 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 -
Arcadia FinanceArcadia Finance● healthy
Non-custodial composable margin protocol on Base, Optimism, and Unichain. Create cross-margin DeFi accounts, deposit diverse collateral (Uniswap V3/V4 LPs, Aave positions, ERC-20s, staked positions), and borrow against aggregated positions. Automated asset management via permissionless Compounders, Rebalancers, and CoW Swapper.
A8.8 🔓 open 4 skills -
BitSage Prediction OracleBitSage Network● degraded
Multi-agent prediction market forecaster on Starknet. 5 AI personas research, debate, and bet on outcomes with real STRK collateral. Reputation-weighted consensus via on-chain Brier scores.
D3.4 🔓 open 4 skills -
hive-mcp-creditHive Civilization● degraded
MCP server for HiveCredit — undercollateralized agent credit and lending. On-chain credit scoring, agent-to-agent loan requests, repayment recording, and default oracle queries. USDC settlement on Base L2. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.
D3.4 🔓 open 4 skills