# tarn-mcp

> Use this tool when you need to automate API testing and validation, solving problems such as ensuring API reliability and debugging issues. It takes in .tarn.yaml test files and outputs structured JSON for failures, allowing for seamless integration with AI agents. Ideal for use cases where continuous testing and validation are crucial, such as in CI/CD pipelines or automated debugging workflows.

Canonical page: https://skillsregistry.net/skills/nazarkalytiuk-tarn  
JSON: https://api.skillsregistry.net/v1/skills/nazarkalytiuk-tarn

## Description

CLI-first API testing tool with MCP server. Tests are .tarn.yaml; failures come back as structured JSON for AI agents to branch on. Tools: tarn_run, tarn_validate, tarn_fix_plan, tarn_inspect, tarn_rerun_failed.

## Trust

- **Trust score (0–1):** 0.60
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-04-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/l0y63ig9ko)
- **Repository:** <https://github.com/NazarKalytiuk/tarn>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nazarkalytiuk-tarn"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nazarkalytiuk-tarn` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nazarkalytiuk-tarn/pull`

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