Copperpour

Copperpour is AI-assisted PCB design for KiCad 10. It is a native KiCad plugin, a single Rust binary, that lets Claude and other AI assistants design schematics and PCBs through the Model Context Protocol. It is the community-maintained AGPL-3.0 fork of Konnect, which went closed source in October 2026, and Konnect was the successor to KiCAD-MCP-Server. Its first release, v0.14.0, added 60 open community pull requests and fixes on top of Konnect v0.13.0.

The README states 245 tools across 21 on-demand toolsets, covering schematic capture, PCB layout and routing, ERC and DRC, design-review audits, JLCPCB part search, reference circuits, and a full manufacturing export pipeline, with bundled skills and agents that teach Claude KiCad conventions out of the box. Board edits go through KiCad 10's official IPC API in real time, with KiCad's own undo and redo, while schematic edits use its own S-expression engine with revision-checked atomic writes. A small context starter kit of about 2K tokens loads toolsets on demand instead of a roughly 23K-token catalogue on every listing.

Instead of describing changes and applying them by hand, the AI works the project directly: placing and wiring schematic components by pin name, laying out the PCB with placement, movement, rotation and routing, running ERC, DRC, connectivity validation, decoupling audits, power-rail review and BOM health checks, exporting Gerbers, drill, BOM, pick-and-place, 3D models and PDF, searching a local catalog of about 800k JLCPCB parts, and starting from reference circuits such as USB-C, LDO, buck converter, STM32, I2C and LED templates with verified component values. The README labels the project beta and says the core toolchain is tested and working but wants real-world mileage and review.