REST-to-Postman MCP

Name: REST-to-Postman MCP
Author: runninghare

@runninghare

Repository

About REST-to-Postman MCP

Rest To Postman Collection MCP Server

Basic information

Config

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

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

Tools

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Overview

What is REST-to-Postman MCP?

REST-to-Postman MCP is a Model Context Protocol (MCP) server that converts REST API code (e.g., NestJS controllers, FastAPI/Flask endpoints) into Postman collections and environments. It is designed for developers who want to automatically sync their REST API endpoints and environment configurations with Postman.

How to use REST-to-Postman MCP?

Install via Smithery with npx -y @smithery/cli install @runninghare/rest-to-postman-mcp --client claude or run directly with npx -y rest-to-postman@latest --postman-api-key your_api_key --postman-workspace-id your_workspace_id. The server exposes two tools: rest_to_postman_env (for environment variables) and rest_to_postman_collection (for API endpoints). Integrate with Claude Desktop, Cursor, Windsurf, or Roo Cline Editor.

Key features of REST-to-Postman MCP

Converts REST API code to Postman collections automatically.
Syncs environment variables with Postman environments.
Supports Bearer token and other authentication methods.
Intelligent merging of new endpoints with existing collections.
Handles sensitive environment variables automatically.
Supports both stdio and SSE transport modes.

Use cases of REST-to-Postman MCP

Generate a Postman collection from a NestJS TypeScript controller.
Sync API environment variables (e.g., base URL, tokens) into Postman environments.
Update an existing Postman collection when new API endpoints are added.
Keep Postman collections in sync with a FastAPI or Flask backend.
Use in Cursor to create Postman collections directly from code prompts.

FAQ from REST-to-Postman MCP

What prerequisites are needed to run REST-to-Postman MCP?

Bun v1.2.2 or later, a Postman API Key, and a Postman Workspace ID are required.

What transport modes does REST-to-Postman MCP support?

It supports both stdio (default) and SSE transport modes. Use --sse flag to enable SSE mode.

What tools does REST-to-Postman MCP provide?

Two tools: rest_to_postman_env for creating/updating Postman environments and rest_to_postman_collection for creating/updating Postman collections.

How do I provide Postman credentials to REST-to-Postman MCP?

Pass them as command-line arguments (--postman-api-key and --postman-workspace-id) or set environment variables POSTMAN_API_KEY and

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