KiCad PCB routing bridge with local KiRouter web interface

KiBridge and KiRouter are two independent tools that share one board JSON over localhost HTTP. KiBridge is the KiCad plugin. KiRouter is a small Flask web app that visualizes the board, drives Freerouting for autorouting, and runs a fast first-pass DRC. Designs never leave your machine; the server refuses to bind anywhere but 127.0.0.1.

The plugin also exposes a separate AI-assist workflow: it writes a kibridge_workspace/ folder that Copilot reads, and applies Copilot’s actions.json through an AST-sandboxed runner so the LLM can suggest changes but can’t execute arbitrary code.