Contribution Exchange vs ProjectPermit

In-depth architectural comparison of the Contribution Exchange and ProjectPermit 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 Contribution Exchange 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 Contribution Exchange Details

Choose ProjectPermit 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 ProjectPermit Details

Feature & Specification Comparison

Specification	Contribution Exchange Developer Tools	ProjectPermit Developer Tools
Summary	Contribution Exchange MCP: domain discovery, policies, preflight, proposals, and signals.	Evidence-linked municipal permit preflight for 7 Canadian jurisdictions with deterministic rules.
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": {
    "contribution-exchange": {
      "command": "npx",
      "args": [
        "-y",
        "sigrank"
      ]
    }
  }
}

{
  "mcpServers": {
    "projectpermit": {
      "url": "https://projectpermit-api-v2-production.up.railway.app/v1/preview-project-requirements"
    }
  }
}

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