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Track support for SEP-2127 MCP Server Cards #1912
Description
Summary
Track C# SDK support for SEP-2127: MCP Server Cards - HTTP Server Discovery, ratified on 2026-10-06.
SEP-2127 standardizes pre-connection discovery for HTTP-based MCP servers. Clients can retrieve a server card from .well-known/ai-catalog.json to discover server capabilities, supported transports, and protocol versions before establishing an MCP connection.
Areas to assess
- Protocol models and serialization for MCP Server Cards
- Client APIs for discovering and validating a server card
- Server APIs or ASP.NET Core integration for publishing the well-known document
- Transport and protocol-version compatibility checks
- Validation and error handling for malformed or unsupported cards
- Security considerations for trusting discovery metadata
- Conformance coverage when tests become available
Proposed completion criteria
- Agree on the public API and package placement
- Implement server-card models and serialization
- Implement client discovery support
- Implement server publication support where applicable
- Add unit and integration tests
- Validate against conformance tests, or track missing conformance coverage
- Add documentation and samples
Activity