MCP Protocol Conformance for Claude Code

io.studiomeyer/protocol-conformance

MCP conformance test harness. JSON-RPC, OAuth 2.1 PKCE, schemas, smoke, annotations. CLI + lib.

client:Claude Code transport:stdio runtime:npm

Install MCP Protocol Conformance in Claude Code

run in your project directory

claude mcp add protocol-conformance -- npx -y mcp-protocol-conformance

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs