tradeproof-mcp-server

A Model Context Protocol (MCP) server that gives Claude access to contractor license data across all 50 US states and Washington, DC. Powered by TradeProof — 5 million+ license records sourced from official state licensing board databases.

This MCP server lets you ask Claude natural-language questions about contractor licenses and get answers backed by public records data:

• "Is ABC Construction licensed in Florida?"
• "Find all electrical contractors in Phoenix, AZ"
• "Check workers' comp coverage for Smith Roofing in California"
• "Are these 5 subcontractors licensed?" (batch lookup)

Claude calls the TradeProof API behind the scenes and returns structured results with license status, business name, classification, expiration date, and more.

• Node.js 18+ (for native fetch support)
• TradeProof API key — get one free at tradeproof.net/app#/settings

Add to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "tradeproof": {
      "command": "npx",
      "args": ["-y", "@tradeproof/mcp-server"],
      "env": {
        "TRADEPROOF_API_KEY": "tp_live_your_key_here"
      }
    }
  }
}

On Windows, if npx is not found, use:

{
  "mcpServers": {
    "tradeproof": {
      "command": "cmd",
      "args": ["/c", "npx", "-y", "@tradeproof/mcp-server"],
      "env": {
        "TRADEPROOF_API_KEY": "tp_live_your_key_here"
      }
    }
  }
}

After saving, fully quit and restart Claude Desktop to load the new server.

claude mcp add --transport stdio \
  --env TRADEPROOF_API_KEY=tp_live_your_key_here \
  tradeproof -- npx -y @tradeproof/mcp-server