Module bulk_pairings 

Bulk pairings let a broadcaster or tournament organizer schedule many games between paired players at once, up to a week in advance, rather than creating challenges one by one.

Creating a pairing (LichessApi::create_bulk_pairing) requires an OAuth token with the challenge:bulk scope for the caller, plus a challenge:write token for each player being paired. Once created, a pairing can be looked up, canceled before it fires, or have its clocks started immediately instead of waiting for the scheduled time.