Lichess
Games No key
AuthenticationNo key
Rate limitNo key for public endpoints; fair use, and don't scrape puzzles in bulk.
Documentation: lichess.org ยท Checked Sep 13, 2026
About
Lichess offers a huge free API: the daily puzzle, puzzles by theme and difficulty, player profiles and rating histories, TV games, and full game exports. Many read endpoints need no login at all; fancier features use free tokens. The site is free and open source.
Details
No key needed. You can call it right away.
Auth: No key
Rate limit: No key for public endpoints; fair use, and don't scrape puzzles in bulk.
Verified: 2026-09-13
Best for: chess puzzles games
Setup
- Browse the docs at https://lichess.org/api.
- Get the daily puzzle: https://lichess.org/api/puzzle/daily (no login).
- Get a player: https://lichess.org/api/user/thibault.
- A new puzzle by theme: https://lichess.org/api/puzzle/next?angle=mate.
- For account features, create a free token at https://lichess.org/account/oauth/token.
Example
https://lichess.org/api/puzzle/dailyUse cases
- A daily chess puzzle widget or bot
- Chess training apps with themed puzzles
- Tracking rating progress over time