Show HN: Test-MCP, end-to-end testing for MCP servers

by idocoon 12/29/2025, 3:16 PMwith 0 comments

We built this while developing an MCP server internally and got tired of manually testing changes by chatting. Unit and integration tests passed, but issues still appeared once a real MCP client and an LLM were in the loop.

test-mcp is a small, headless MCP client for running end-to-end test flows against MCP servers using real LLMs. It’s early, and I’m mainly looking for feedback from MCP builders.

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