LexPact MCP Server

Exposes the LexPact contract generation API to Claude Desktop (or any MCP client) as three tools: list_contract_templates, generate_contract, get_contract. Thin proxy only — all validation and generation happens server-side at https://lexpact.co.uk/api/v1, so structured, LLM-actionable error messages reach Claude unchanged.

Setup

1. Get an API key at lexpact.co.uk/dashboard/api-keys.
2. Install dependencies:

   cd mcp-server
   npm install
   

3. Add to your Claude Desktop config (claude_desktop_config.json — Settings → Developer → Edit Config):

   {
     "mcpServers": {
       "lexpact": {
         "command": "node",
         "args": ["/absolute/path/to/mcp-server/index.js"],
         "env": {
           "LEXPACT_API_KEY": "lp_live_your_key_here"
         }
       }
     }
   }
   

4. Restart Claude Desktop. Ask it to draft a contract — it will call list_contract_templates and generate_contract as needed.

Environment variables

Var	Required	Purpose
LEXPACT_API_KEY	Yes	Your LexPact API key.
LEXPACT_API_BASE_URL	No	Override the API base URL (defaults to https://lexpact.co.uk/api/v1) — useful for testing against a local dev server.

Manual test

LEXPACT_API_KEY=lp_live_... node index.js

Then connect any MCP client (e.g. the MCP Inspector: npx @modelcontextprotocol/inspector node index.js).