Arduino MCP Server

local MCP server

Installation

Terminal

claude mcp add io-github-hardware-mcp-arduino-mcp-server -e ARDUINO_CLI_PATH=... -e ARDUINO_SKETCH_ROOT=... -- npx -y arduino-mcp-server

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "io-github-hardware-mcp-arduino-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "arduino-mcp-server"
      ],
      "env": {
        "ARDUINO_CLI_PATH": "...",
        "ARDUINO_SKETCH_ROOT": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

Summary

Arduino MCP server for CLI setup, board detection, compile/upload, serial monitoring, and pin refs.

Questions

Arduino MCP Server is a local MCP server distributed as the npm package arduino-mcp-server.

Run: claude mcp add io-github-hardware-mcp-arduino-mcp-server -e ARDUINO_CLI_PATH=... -e ARDUINO_SKETCH_ROOT=... -- npx -y arduino-mcp-server

Run: codex mcp add io-github-hardware-mcp-arduino-mcp-server --env ARDUINO_CLI_PATH=... --env ARDUINO_SKETCH_ROOT=... -- npx -y arduino-mcp-server

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