League Loom is a free fantasy sports connector that brings live league information into Claude, ChatGPT, and other compatible AI tools. It connects with ESPN, Sleeper, and Fantrax across 10 sports, including NFL, NBA, MLB, and NHL. After a guided setup that typically takes about two minutes, users can ask questions in plain language and receive answers based on their own league data.

League Loom provides read-only access to rosters, standings, matchups, waiver pools, player information, and league settings; it does not perform write actions. Its tools support practical fantasy decisions, such as reviewing teams, checking lineups, planning waiver claims, assessing matchups, and identifying roster needs. Users can also draw on prompts for weekly reviews and newsletters that summarize standings, scores, roster alerts, and waiver candidates, while noting missing information.

The service requires no API keys, coding, spreadsheets, or roster screenshots. League Loom is free with fair-use limits, and each connected AI tool can retrieve fresh league data for follow-up questions