LocalFree

Tarn MCP server

NazarKalytiuk/tarn

API testing tool with YAML tests and structured JSON failures agents can act on: run, validate, inspect, rerun failed tests and get fix plans.

5 GitHub stars

Install Tarn in Claude Code

This server doesn't publish a package to a registry, so follow the install steps in its README. Once it runs, register it with Claude Code:

Claude Code
claude mcp add tarn -- <command to start the server>

Frequently asked questions

What does the Tarn MCP server do?

API testing tool with YAML tests and structured JSON failures agents can act on: run, validate, inspect, rerun failed tests and get fix plans.

Is the Tarn MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Tarn run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Tarn to Claude Code?

Follow the install steps in the project's README at https://github.com/NazarKalytiuk/tarn, then register it with "claude mcp add".

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