Picocalc MCP Server

by lofifren Your server? Claim it

local only

Picocalc MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 73 installs a week from pypi. Last commit 1 Jul 2026.

AI assistant access to PicoCalc MicroPython hardware over USB.

Installs per day peak 22 · avg 12 · -8% w/w

a month agotoday

Installs / week

pypi · picocalc-mcp

Stars

0 open issues

1 Jul 2026

Last commit

0 releases in 90 days

—

License

Python

What the code does

We read the source, 17 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

File ships in the package but is absent from the source [пакет] src/picocalc_mcp/__init__.py:1, [пакет] src/picocalc_mcp/__main__.py:1, [пакет] src/picocalc_mcp/server.py:1

этот файл ставится пользователю, но в репозитории его нет

Executes code built at runtime MicroPython/modules/picocalc_system.py:66, MicroPython/modules/py_run.py:173, MicroPython/sd/py_scripts/ssh_server.py:618 и ещё 4

        exec(open(filename).read())

Runs an external command MicroPython/tools/bottle.py:3841, MicroPython/tools/dashboard.py:35, mcp/mcp_server.py:41 и ещё 1

                p = subprocess.Popen(args, env=environ)

Unsafe deserialization MicroPython/tools/bottle.py:1190

                    dst = pickle.loads(base64.b64decode(msg))

Builds a file path from a variable MicroPython/tools/dashboard.py:481

            shutil.copy(str(uf2), os.path.join(drive, uf2_name))

Page executes code built at runtime MicroPython/tools/static/index.html:619

      hdr.querySelector('.fl-icon').innerHTML = sub.style.display === 'none' ? '&#x25B8;' : '&#x25BE;';

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add picocalc-mcp -- uvx picocalc-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "picocalc-mcp": {
      "args": [
        "picocalc-mcp"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.picocalc-mcp]
command = "uvx"
args = ["picocalc-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "picocalc-mcp": {
      "args": [
        "picocalc-mcp"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "picocalc-mcp": {
      "args": [
        "picocalc-mcp"
      ],
      "command": "uvx"
    }
  }
}

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Picocalc MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Picocalc MCP?

Picocalc MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package picocalc-mcp was installed 73 times last week.

How do I connect Picocalc MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls picocalc-mcp straight from pypi; nothing to host, nothing to sign up for.

How many people use Picocalc MCP?

The pypi package picocalc-mcp was installed 73 times in the last week. Week over week that is -8%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Picocalc MCP open source?

We cannot say either way: written in Python and 78 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.