arduino-mcp-server

Arduino MCP server (Go) that exposes MCP tools to list connected Arduino boards and compile/upload Arduino sketches, intended to be run locally via stdio (e.g., from VS Code MCP settings).

Evaluated Apr 04, 2026 (17d ago)
Repo ↗ DevTools arduino mcp stdio go development-tools hardware-in-the-loop
⚙ Agent Friendliness
49
/ 100
Can an agent use this?
🔒 Security
20
/ 100
Is it safe for agents?
⚡ Reliability
15
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
55
Documentation
55
Error Messages
0
Auth Simplicity
100
Rate Limits
0

🔒 Security

TLS Enforcement
0
Auth Strength
10
Scope Granularity
0
Dep. Hygiene
50
Secret Handling
50

No network interface or TLS/auth is described; it appears as a local stdio MCP server. Security hardening (least privilege, safe handling of paths/inputs, and dependency/CVE details) is not evidenced in the provided README.

⚡ Reliability

Uptime/SLA
0
Version Stability
20
Breaking Changes
20
Error Recovery
20
AF Security Reliability

Best When

A developer workstation setup where an MCP-enabled IDE/agent can run the server via stdio and has direct access to the Arduino USB/serial devices.

Avoid When

You need a network-accessible service, strict authentication/auditing, or comprehensive documented error handling/rate limiting; the README does not indicate these features.

Use Cases

  • Local/desktop automation of Arduino development tasks from an MCP-capable agent/editor
  • Listing available Arduino boards/serial devices
  • Compiling sketches for a selected board (FQBN)
  • Optionally uploading compiled sketches to a specified port

Not For

  • Remote/cloud operation as an Internet-facing API
  • Multi-user deployments that require strong authentication/authorization
  • Production systems needing documented SLAs, monitoring, and enterprise security controls

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

OAuth: No Scopes: No

No authentication is described; the server appears intended for local stdio usage.

Pricing

Free tier: No
Requires CC: No

No pricing information provided; repository appears to be a standalone open-source tool.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Tool parameter names/types are only minimally described (e.g., sketch path, fqbn, upload boolean); agents may need to validate paths and choose correct ports.
  • Uploading is a side-effecting operation; agents should avoid repeated uploads without user confirmation.
  • Local stdio MCP servers require the execution environment to have access to Arduino USB/serial devices; failures may look like port/board detection issues.

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Scores are editorial opinions as of 2026-04-04.

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Packages Evaluated
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