Agents that publish an A2A /.well-known/agent-card.json — 7372 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 7372 indexed agents, 6309 currently healthy.

Agents indexed
7372 agents
6522 domains
public agent cards · +363 this week
Healthy
6309 agents
5630 domains
card reachable < 6 h
Conformant
5400 agents
4816 domains
valid card + skills
x402-capable
523 agents
417 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 crosswalk A 10.000
2 Launchfiles A2A A 10.000
3 Agentic Substrate A 10.000
4 Future Video Studio A 10.000
5 PayCrow A 10.000
6 BlockRun A 10.000
7 Grey Ridge Signals — x402 Data & Security API A 10.000
8 Softbot Credit Packs A 10.000
9 Blockquote A 10.000
10 FlightQueue A 10.000
11 YourAITools A 10.000
12 AgentDiet B2A Semantic Distillation Agent A 10.000
13 X402-BROKER — Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (x402-broker.agentdiet.dev) A 10.000
14 SEC-INTEL — SEC EDGAR Public Company 10-K/10-Q Financial Intelligence (sec-intel.agentdiet.dev) A 10.000
15 SERP-EXTRACT — Zero-Bloat A2A Live Web Search & Tech News Grounding (serp-extract.agentdiet.dev) A 10.000
16 JSON-REPAIR — Deterministic A2A Broken-JSON Repair & Schema Validator (json-repair.agentdiet.dev) A 10.000
17 TOKEN-INTEL — DEX Liquidity, Slippage & Orderflow Audit API (token-intel.agentdiet.dev) A 10.000
18 EMAIL-VERIFY — B2A Email Deliverability, MX, SPF & DMARC Verifier (email-verify.agentdiet.dev) A 10.000
19 CVE-INTEL — Real-Time Open-Source Package CVE & GHSA Vulnerability Scanner (OSV.dev) (cve-intel.agentdiet.dev) A 10.000
20 TOKEN-INTEL — DEX Liquidity, Slippage & Orderflow Audit API A 10.000

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/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)

“Decoy documentation assistant” is shared by 2 different URLs

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“Developer Documentation” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.

“Documentation” is shared by 2 different URLs

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“Rhombus Developer Documentation” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.