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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: 331
Skills: 1695
New this week: 331

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LLM Orchestration Agent (Langchain Openai)VDA / GOSCE · llm-orchestration-agent-langchain-openai.getvda.ai
Card live
LLM Orchestration Agent (Langchain Openai): composes langchain + langchain-openai + langgraph + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Orchestration Agent (Langchain)VDA / GOSCE · llm-orchestration-agent-langchain.getvda.ai
Card live
LLM Orchestration Agent (Langchain): composes langchain + langchain-openai + langgraph + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Orchestration Agent (Langgraph)VDA / GOSCE · llm-orchestration-agent-langgraph.getvda.ai
Card live
LLM Orchestration Agent (Langgraph): composes langchain-core + langgraph + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare

Crawlers, bots and libraries we detect

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

All5 Agents0 Bots5

Any identity57 Signed19 IP list7 Reverse DNS0 User agent18 Hidden13

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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.