Postman Mcp Server vs Open & Async

In-depth architectural comparison of the Postman Mcp Server and Open & Async MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Postman Mcp Server when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
• You have access to required keys: POSTMAN_API_KEY.
• Primary tools included: CRUD operations for collections, environments, and APIs, Version control with fork, merge, and pull for collections, Role-based access control and workspace permissions.

Explore Postman Mcp Server Details

O

Choose Open & Async when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Open & Async Details

Feature & Specification Comparison

Specification	Postman Mcp Server delano Developer Tools	O Open & Async Developer Tools
Summary	An MCP server that provides access to Postman.	Draft decision docs, turn meetings into async artifacts, and triage sync vs async in your editor.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "delano-postman-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli"
      ],
      "env": {
        "POSTMAN_API_KEY": "YOUR_POSTMAN_API_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "open-async": {
      "command": "npx",
      "args": [
        "-y",
        "open-async"
      ]
    }
  }
}

Related MCP Server Comparisons