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Postman MCP Server

@shannonlal

Repository

Basic information

Category

Other

License

MIT

Transports

stdio

Author

shannonlal

About Postman MCP Server

MCP Server for running Postman Collections with Newman

Postman MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-postman": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "mcp-postman",
        "--client",
        "claude"
      ]
    }
  }
}

Postman MCP Server tools

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Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is Postman MCP Server?

An MCP server that enables running Postman collections using Newman, allowing LLMs to execute API tests and get detailed results through a standardized interface.

How to use Postman MCP Server?

Install via Smithery or manually with pnpm install and pnpm build. Add the server to your Claude desktop configuration, then use the run-collection tool by providing a collection path or URL, with optional environment, globals, and iteration count parameters.

Key features of Postman MCP Server

  • Run Postman collections using Newman
  • Support for environment files
  • Support for global variables
  • Detailed test results with pass/fail summary
  • Execution timings and failure information

Use cases of Postman MCP Server

  • Execute API tests by asking an LLM in natural language
  • Automate regression testing of Postman collections
  • Integrate API test results into AI‑powered workflows
  • Run collections with multiple iterations for load verification

Frequently asked questions

1

What are the prerequisites for running Postman MCP Server?

You need Node.js, pnpm, and the Newman runner (installed via `pnpm install` and built with `pnpm build`).

2

How do I specify a Postman collection to run?

Use the required `collection` parameter with a local file path or URL to the collection JSON.

3

Can I set environment variables or global variables?

Yes, provide an optional `environment` file path/URL and/or a `globals` file path/URL.

4

What information is included in the test results?

The response includes overall success/failure status, a summary (total, passed, failed), failure details, and execution timings.

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