Postman Mcp Server vs OnlyWorlds

In-depth architectural comparison of the Postman Mcp Server and OnlyWorlds 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

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Choose OnlyWorlds when:

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

Explore OnlyWorlds Details

Feature & Specification Comparison

Specification	Postman Mcp Server delano Developer Tools	O OnlyWorlds Developer Tools
Summary	An MCP server that provides access to Postman.	Read and write typed fictional worlds (22 linked element types) via the OnlyWorlds open standard.
Category & Scope	Developer Tools	Developer Tools

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": {
    "onlyworlds": {
      "url": "https://www.onlyworlds.com"
    }
  }
}

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