Grain SQL MCP Server

Install in Claude Code

claude mcp add grain-tools -e GRAIN_CONNECTIONS='<grain-connections>' -- npx -y grain-tools

Install in Cursor

{
  "mcpServers": {
    "grain-tools": {
      "command": "npx",
      "args": [
        "-y",
        "grain-tools"
      ],
      "env": {
        "GRAIN_CONNECTIONS": "<grain-connections>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

Install in Claude Desktop

{
  "mcpServers": {
    "grain-tools": {
      "command": "npx",
      "args": [
        "-y",
        "grain-tools"
      ],
      "env": {
        "GRAIN_CONNECTIONS": "<grain-connections>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

Install in VS Code

{
  "servers": {
    "grain-tools": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "grain-tools"
      ],
      "env": {
        "GRAIN_CONNECTIONS": "<grain-connections>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

Install in Windsurf

{
  "mcpServers": {
    "grain-tools": {
      "command": "npx",
      "args": [
        "-y",
        "grain-tools"
      ],
      "env": {
        "GRAIN_CONNECTIONS": "<grain-connections>"
      }
    }
  }
}

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