MCP Compliance

Unclaimed

by YawLabs

CLI + MCP server that tests MCP servers for spec compliance. 88 tests across 8 categories, A-F grading.

Install

$npx @yawlabs/mcp-compliance@latest test https://my-server.com/mcp

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Tools (5)

Capability-driven

tests adapt to what the server declares. If it says it supports tools, tool tests become required. No false failures for features the server doesn't claim.

CI-ready

--strict mode exits with code 1 on required test failures. Drop it into any pipeline.

mcp_compliance_explain

Explain what a specific test ID checks and why it matters.

mcp_compliance_test

Run the full 88-test suite against a URL or stdio command. Supports auth, custom headers, env vars, timeout, retries, and category/test filtering. Returns grade, score, and detailed results.

Spec-referenced

every test links to the exact section of the MCP specification it validates. No ambiguity about what's being tested or why.