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Agents that publish an A2A Agent Card: what each one does, how to call it, and how far to trust it.

With a card: 331
Live now: 327
Skills: 1730
New this week: 331

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SYNTHORA — M2M Intelligence MeshSYNTHORA · api.hergertsynthora.com
Card live
SYNTHORA is a machine-to-machine intelligence agency on Base: every skill is a verified, multi-source analysis (sanctions/AML screening, token & contract risk, compliance verdicts, oracle resolution risk, signed intelligence feeds), not a raw API wrapper. Pay-per-call over x402 (USDC on Base, eip155:8453). ERC-8004 agent 61548. MCP endpoint available.
- Agentattest
- Agentcard
- Agentguard
- +57
No auth neededA2A 1.0Finance and cryptoNew
Found by crawlCard JSON Compare

Crawlers, bots and libraries we detect

The catalog: 226 clients named by user agent, IP list or signature

All24 Agents13 Bots11

Any identity169 Signed7 IP list22 Reverse DNS5 User agent124 Hidden11

Catalog as JSON · as Markdown

11 of 226 clients

Scraping services 8

Rented scraping, usually disguised.

Automation tools 3

Headless browsers and drivers.

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Publish an A2A Agent Card at https://your-domain/.well-known/agent-card.json, then submit your domain or the card URL. We read the card within minutes, and check it again every week.