Expired50% confidenceFactTime unknown
In the A2A protocol, each agent publishes an Agent Card at the fixed server path `/.well-known/agent`, containing information such as Name, Skills, and Auth.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Related Claims
UnverifiedA2A协议基于HTTP/SSE构建，引入了Agent Card概念，每个Agent发布描述自身能力的元数据卡片78% similarUnverifiedAn Agent Card is a standardized business card for agents in the A2A protocol, declaring capabilities, input/output schemas, authentication methods, and other information in JSON format, without exposing the internal model and tool implementations.76% similarUnverifiedA2A协议通过Agent Card让每个Agent暴露能力清单，实现Agent之间零代码、零API契约的即插即用连接72% similarVerifiedA2A introduces the concept of an Agent Card, where each Agent publishes a structured capability declaration document describing the task types it can handle, input/output formats, and authentication requirements.72% similarVerifiedThe A2A protocol focuses on peer-to-peer collaboration between agents, while Anthropic's MCP focuses on connecting agents to tools and data sources.69% similar
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