Let AI agents interact with serial devices — list ports, connect, send, and read.
To add serial-mcp-server to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It declares 5 environment variables, listed below.
Install
uvx serial-mcp-server@0.1.3Environment variables
SERIAL_MCP_MAX_CONNECTIONSSet in your MCP configSERIAL_MCP_PLUGINSSet in your MCP configSERIAL_MCP_MIRRORSet in your MCP configSERIAL_MCP_MIRROR_LINKSet in your MCP configSERIAL_MCP_TOOL_SEPARATORSet in your MCP configSet only if the maker requires them; this listing does not flag any of them as required.
Install with your client
claude mcp add serial --env SERIAL_MCP_MAX_CONNECTIONS=<YOUR_SERIAL_MCP_MAX_CONNECTIONS> --env SERIAL_MCP_PLUGINS=<YOUR_SERIAL_MCP_PLUGINS> --env SERIAL_MCP_MIRROR=<YOUR_SERIAL_MCP_MIRROR> --env SERIAL_MCP_MIRROR_LINK=<YOUR_SERIAL_MCP_MIRROR_LINK> --env SERIAL_MCP_TOOL_SEPARATOR=<YOUR_SERIAL_MCP_TOOL_SEPARATOR> -- uvx serial-mcp-server@0.1.3
Run this in a terminal to add the server to Claude Code.
What this does
serial-mcp-server exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server declares the following environment variables. Set only the ones the maker requires for your setup; this listing does not flag any of them as required:
SERIAL_MCP_MAX_CONNECTIONS SERIAL_MCP_PLUGINS SERIAL_MCP_MIRROR SERIAL_MCP_MIRROR_LINK SERIAL_MCP_TOOL_SEPARATOR
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install serial-mcp-server?
Run the Claude Code command in the install section to add serial-mcp-server to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with serial-mcp-server?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to serial-mcp-server as well.
Does serial-mcp-server need an API key?
This listing does not flag an API key as required. The server can use these environment variables: SERIAL_MCP_MAX_CONNECTIONS, SERIAL_MCP_PLUGINS, SERIAL_MCP_MIRROR, SERIAL_MCP_MIRROR_LINK, SERIAL_MCP_TOOL_SEPARATOR; the maker's docs say which of them your setup needs. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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