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Platformio MCP Server

Developer ToolsUse Caution4.8Local
Free

PlatformIO for AI agents: build, flash, serial monitor, tests, crash decoding, size reports.

About

PlatformIO for AI agents: build, flash, serial monitor, tests, crash decoding, size reports.

Security Report

4.8
Use Caution4.8High Risk

This is a well-architected MCP server for PlatformIO with clear security boundaries and appropriate access controls. The code is clean, uses policy-based permission gating for sensitive operations (flash/erase), and properly handles credentials through environment variables. Minor code quality issues around broad exception handling and some input validation suggestions do not significantly impact the security posture. Permissions align well with the server's embedded development purpose. Supply chain analysis found 5 known vulnerabilities in dependencies (0 critical, 5 high severity). Package verification found 1 issue.

5 files analyzed · 11 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

HTTP Network Access

Connects to external APIs or services over the internet.

Shell Command Execution

Runs commands on your machine. Be cautious — only use if you trust this plugin.

system_info

Check that this permission is expected for this type of plugin.

env_vars

Check that this permission is expected for this type of plugin.

process_spawn

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

full (default), build_only, or read_onlyOptional

Environment variable: PLATFORMIO_MCP_POLICY

Default project directory when a tool is called without project_dirOptional

Environment variable: PLATFORMIO_MCP_PROJECT_DIR

Explicit path to the pio executable (auto-detected otherwise)Optional

Environment variable: PLATFORMIO_MCP_PIO

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-powerdragonfire-platformio-mcp": {
      "env": {
        "PLATFORMIO_MCP_PIO": "your-platformio-mcp-pio-here",
        "PLATFORMIO_MCP_POLICY": "your-platformio-mcp-policy-here",
        "PLATFORMIO_MCP_PROJECT_DIR": "your-platformio-mcp-project-dir-here"
      },
      "args": [
        "platformio.mcp"
      ],
      "command": "uvx"
    }
  }
}

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