Lichess Bots
Turn your chess engine into a rated Lichess bot that plays humans and bots
Lichess lets you upgrade an account to a BOT account and connect your own chess engine to it through the Bot API. Your program receives challenges, streams the game and sends moves. It can play rated games against other bots and against people who challenge it, and everyone can watch its games live.
Free · Login needed · API · Intermediate
About Lichess Bots
It trains engine programming: move generation, search and evaluation, plus handling a real network API. It suits intermediate programmers. The open-source lichess-bot bridge lets you plug in any UCI engine or a homemade one written in Python.
It runs on your own machine or server and talks to lichess.org over HTTP. Lichess is free and open source. You need a new account that has never played a game before you upgrade it.
On Breakpoint since 25 Oct 2026.
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