About

Robot Parts List is a free reference for people building open-source robots: the exact parts, the right quantities, and who sells them. Every list starts from the project's official bill of materials and links back to it. We compare several sellers per part and mark prices we could not confirm on the seller's page.

It is run by an ML engineer who builds and studies multi-agent and learning systems. Spotted a wrong part or a dead link? Each page lists its sources so you can check, and corrections go in the next update.