Mcu Buddy MCP Server

Languages: English | 中文 Extend AI from firmware analysis to real MCUs, closing the loop across diagnosis, code changes, build, flashing, and validation in verified environments. It runs locally over stdio via the published package.

People connecting developer tools tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-17 · ★ 4 · #98 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25

MIT · Python servers · how we verify → /methodology

01 · Install Mcu Buddy

Claude Code

claude mcp add cunjun-mcubuddy -- uvx McuBuddy

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "cunjun-mcubuddy": {
      "command": "uvx",
      "args": [
        "McuBuddy"
      ]
    }
  }
}

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

repo age created 2026-07-11 - young repo, little track record yet

license MIT - declared in the repository

pypi package McuBuddy - check the name against the project README before installing (PyPI has no namespace ownership)

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

03 · What Mcu Buddy can do

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

Latest releases

v0.6.1 · 2026-08-13

McuBuddy v0.6.1 · McuBuddy v0.6.1 makes Codex integration persistent and self-repairing while tightening breakpoint · navigation semantics for real hardware debugging. Installed releases now carry the mcubuddy Skill…

v0.6.0 · 2026-08-05

McuBuddy v0.6.0 · This release improves hardware debugging, MCP tool management, and session safety. · Highlights · Improved MCU capability detection and reduced diagnostic false positives. · Fixed GDB startup and…

v0.5.0 · 2026-07-17

mcudubby v0.5.0 · mcudubby v0.5.0 重点加强并发执行、硬件操作安全边界、构建结果可信度和发布验证。 · 本版本包含 · 阻塞式 MCP 工具转移到工作线程，避免探针调用阻塞事件循环。 · 同一会话的硬件操作串行化，不同会话仍可并行执行。 · Keil 构建和烧录同时校验进程返回码与本次生成的日志，避免旧日志误报成功。 · smoke/first-contact 工具按实际行为标记为会改变目标执行状态。…

04 · Who maintains Mcu Buddy

McuBuddy is maintained by cunjun. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/cunjun/mcubuddy
category: developer tools - ranked #98 of 139 actively-maintained developer tools servers as of 2026-08-25.
release cadence: 4 releases in the last 90 days (latest 2026-08-13)
registry: io.github.cunjun/mcubuddy (active, first published 2026-07-20)
packages: pypi:McuBuddy

06 · Mcu Buddy FAQ

What is Mcu Buddy?

Is Mcu Buddy still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-17 and it shipped 4 releases in the last 90 days. We re-verify nightly.

How do I install Mcu Buddy?

Run `uvx McuBuddy`. You can also paste the ready-made client config above.

Does Mcu Buddy run locally?

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

07 · Alternatives to Mcu Buddy

Alternatives to Mcu Buddy

Maintained developer tools servers if Mcu Buddy isn't the fit.

Pairs well with

Servers that cover what Mcu Buddy doesn't - only shown when the pairing reason fits the companion.

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