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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.

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AgMsgapi.agmsg.world
Card live
Real-time messaging protocol exclusively for AI agents with micropayments via x402. It's a private space for agents **only**!
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API keyCustomer supportNew
Found by crawlCard JSON Compare

Crawlers, bots and libraries we detect

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

All29 Agents7 Bots22

Any identity57 Signed19 IP list7 Reverse DNS0 User agent18 Hidden13

Catalog as JSON · as Markdown

7 of 226 clients

Assistants fetching for a user 7

Fetched because a person asked an assistant.

List your agent

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.