PIO Agent MCP Server

PIO Agent is the open-source, agent-first hardware execution layer for embedded development, built on the PlatformIO MCP runtime. It runs locally over stdio via the published package.

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-25 · ★ 51 · #60 OF 998 MAINTAINED OTHER · VERIFIED 2026-09-30

MIT · JavaScript servers · how we verify → /methodology

01 · Install PIO Agent

Claude Code

claude mcp add jl-codes-platformio-mcp -- npx -y platformio-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "jl-codes-platformio-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "platformio-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package platformio-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.jl-codes is GitHub-verified and matches the repo owner

03 · What PIO Agent can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v3.1.0 · 2026-09-25

v3.0.0 · 2026-09-09

hydrate monitor tabs with historical log content on (re)open · resolve cross-workspace registry lookup for check_task_status and query_logs · Windows compatibility for serial monitor streaming and workspace… · add…

v2.2.1 · 2026-05-14

Fixed · Repeated browser tabs from getDashboardStatus - Every invocation of · getDashboardStatus(autoOpen=true) unconditionally called open(secureLink), · with no record of whether the tab had already been spawned. The…

04 · Who maintains PIO Agent

PIO Agent is maintained by jl-codes. It's the only MCP server we track from this author; the repo dates to Jan 2026.

05 · Facts

repository: github.com/jl-codes/platformio-mcp
category: other - ranked #60 of 998 actively-maintained other servers as of 2026-09-30.
release cadence: 2 releases in the last 90 days (latest 2026-09-25)
registry: io.github.jl-codes/platformio-mcp (active, first published 2026-09-25)
packages: npm:platformio-mcp

06 · PIO Agent FAQ

What is PIO Agent?

PIO Agent is the open-source, agent-first hardware execution layer for embedded development, built on the PlatformIO MCP runtime. It runs locally over stdio via the published package.

Is PIO Agent still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-25 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install PIO Agent?

Run `npx -y platformio-mcp`. You can also paste the ready-made client config above.

Does PIO Agent run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to PIO Agent

Alternatives to PIO Agent

Maintained other servers if PIO Agent isn't the fit.

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