LangAPI Documentation

Run this once in your terminal. It shows a short code and a link to langapi.io/device— open it in any browser, sign in, and enter the code to approve. The CLI then stores a session token at ~/.langapi/credentials.json and refreshes it automatically as needed.

npx @langapi/mcp-server login

Your MCP config just points at the server — no credentials live in the config:

{
  "mcpServers": {
    "langapi": {
      "command": "npx",
      "args": ["@langapi/mcp-server"]
    }
  }
}

Sign out and revoke the session with:

npx @langapi/mcp-server logout

Config file:
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "langapi": {
      "command": "npx",
      "args": ["@langapi/mcp-server"]
    }
  }
}

Restart Claude Desktop after editing.

Create .cursor/mcp.json in your project root, or use Settings → MCP:

{
  "mcpServers": {
    "langapi": {
      "command": "npx",
      "args": ["@langapi/mcp-server"]
    }
  }
}

Install the Cline extension, then create .vscode/cline_mcp_settings.json:

{
  "mcpServers": {
    "langapi": {
      "command": "npx",
      "args": ["@langapi/mcp-server"]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "langapi": {
      "command": "npx",
      "args": ["@langapi/mcp-server"]
    }
  }
}