CLI tool and MCP server that tests MCP servers for spec compliance
Test any MCP server for spec compliance. 88-test suite covering transport, lifecycle, tools, resources, prompts, error handling, schema validation, and security against the MCP specification. Works against HTTP endpoints () and stdio servers () alike. CLI, MCP server, and programmatic API. Built and maintained by Yaw Labs. One click adds this to your local Yaw MCP config so it's available in…
Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts — it cannot prove the absence of malicious code.
Test any MCP server for spec compliance. 88-test suite covering transport, lifecycle, tools, resources, prompts, error handling, schema validation, and security against the MCP specification. Works against HTTP endpoints () and stdio servers () alike. CLI, MCP server, and programmatic API. Built and maintained by Yaw Labs. One click adds this to your local Yaw MCP config so it's available in every Yaw Terminal session. Or install manually below. MCP servers are multiplying fast — but most ship…