v3

latestOpenAPI 3.1.0AGPL-3.0-or-later2026-07-311871891.1 MB
External engine

Answer analysis request

Endpoint: https://engine.lichess.ovh/api/external-engine/work/{id}

Submit a stream of analysis as UCI output.

  • The engine should always be in UCI_Chess960 mode.
  • UCI_AnalyseMode enabled if available.
  • It produces info with at least:
    • depth
    • multipv (between 1 and 5)
    • score
    • nodes
    • time
    • pv The server may close the connection at any time, indicating that the requester has gone away and analysis should be stopped.
post/api/external-engine/work/{id}

Response

Thanks