# MCP Server Card

[1 · Discover](/category/discover/)

| MCP Server Card |
| --- |
| Category | [Discover](/category/discover/) |
| Also known as | server-card, mcp-server-card |
| Related | [Model Context Protocol](/protocols/mcp/), [Agentic Resource Discovery](/protocols/ard/) |

[Discover](/category/discover/) A Server Card is a proposed static, discoverable document that describes an MCP server: what it is, who publishes it, and how to reach it, without requiring a client to first open an MCP session. The mechanism is defined in SEP-2127, a Model Context Protocol enhancement proposal opened 21 January 2026 and still being updated as of 3 September 2026, which recommends serving the card at a /server-card path relative to the server's own endpoint rather than at a single global well-known location such as /.well-known/mcp; an earlier well-known-path proposal (SEP-1649) was superseded. Static cards intentionally omit the live list of tools, prompts and resources, which a client still has to fetch at runtime. Server cards can be advertised to an ARD registry with the media type application/mcp-server-card+json. As of the SEP's own text, implementation is limited to experimental SDK work and a demo; mainstream client auto-discovery of server cards is not established. Used by: mcp, ard.

## Instances

Not applicable.

## See also

- [Model Context Protocol](/protocols/mcp/)
- [Agentic Resource Discovery](/protocols/ard/)

## References

- [https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2127](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2127) (2026-01-21) VERIFIED
- [https://agenticresourcediscovery.org/spec/](https://agenticresourcediscovery.org/spec/) (2026-08-26) VERIFIED

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