truss-api-mcp

[](https://www.npmjs.com/package/truss-api-mcp) [](https://opensource.org/licenses/MIT)

API testing and documentation tools for Claude Code. Test endpoints, parse OpenAPI specs, validate responses, generate clients, and more — all from your AI assistant.

Run with npx (no install needed):

npx -y truss-api-mcp

Add to your claude_desktop_config.json or .claude/settings.json:

{
  "mcpServers": {
    "api-testing": {
      "command": "npx",
      "args": ["-y", "truss-api-mcp"]
    }
  }
}

Add to your Cursor MCP settings:

{
  "mcpServers": {
    "api-testing": {
      "command": "npx",
      "args": ["-y", "truss-api-mcp"]
    }
  }
}

---

| Tool | Description | |------|-------------| | test_endpoint | Send HTTP request and get structured response (status, headers, body, timing, size) | | parse_openapi | Parse an OpenAPI 3.x or Swagger 2.0 spec and list all endpoints | | validate_response | Validate API response against expected status and JSON Schema |

| Tool | Description | |------|-------------| | generate_openapi | Auto-generate OpenAPI spec from example requests/responses | | generate_tests | Generate API test suite (Jest, Vitest, or Pytest) | | mock_server | Generate mock server config from OpenAPI spec | | compare_specs | Diff two specs and find breaking changes | | generate_client | Generate typed API client (TypeScript, Python, Go) |

Add to your MCP configuration:

{
  "mcpServers": {
    "truss-api-testing": {
      "command": "npx",
      "args": ["-y", "truss-api-mcp"],
      "env": {
        "TRUSS_LICENSE_KEY": "your-key-here"
      }
    }
  }
}

git cl