MCP server

mcp-assert

The testing standard for MCP servers. Lint (14 rules), test, and fuzz over real stdio/SSE/HTTP transport. 18 assertion types in YAML. Found 4,794 schema issues across 55 servers. Any language, no mocks, single binary.

• Published source
• Repository

Version

main

Last observed

11 October 2026

This is public metadata, not a safety certification or complete assessment. Static analysis cannot establish what a tool does at runtime.