A CircuitPython MCP server

Article excerpt

CircuitPython MCP Server is a minimal MCP JSON-RPC server helpers for CircuitPython projects using adafruit_httpserver. This library lets a CircuitPython board run a real MCP server directly on the device. The host computer is only used for deployment, serial logs, and testing. Implemented HTTP endpoints: GET /: JSON status POST /mcp: MCP JSON-RPC over HTTP GET /mcp: method-not-allowed explanation DELETE /mcp: method-not-allowed explanation OPTIONS /mcp: permissive CORS GET /sse and POST /messages: legacy SSE compatibility when the installed adafruit_httpserver has SSEResponse Check it out on GitHub.