io.github.es617/serial-mcp-server

Is the io.github.es617/serial-mcp-server MCP server down? No. It is up and needs env, probed 2026-10-31.

Let AI agents interact with serial devices — list ports, connect, send, and read.

needs env probed 2026-11-14 · unchanged since 2026-10-31

MCP error -32000: Connection closed
ValueError: invalid literal for int() with base 10: 'mcpcost-placeholder'
  File "/work/uv/serial-mcp-server/lib/python3.12/

Run it: uvx serial-mcp-server@0.1.3 (stdio, probed in a container with the network off)
Host: pypi.org
Repository: https://github.com/es617/serial-mcp-server.git
Registry: active, updated 2026-03-07 · registry entry

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Badge for the README

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

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Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

For the publisher

The server exits because an environment variable is missing. The probe starts the package without secrets. A server that starts without secrets and asks for them on the first tool call is measured.