Odds-API

Real-time sports betting odds from 415+ bookmakers across 34 sports via REST and WebSocket

Official docs outline

Extra Credit builds an outline of Odds-API's docs the first time your work uses it. Until then, start at the official documentation.

MLB Records and Stats Current and historical MLB statistics
MoviOdds Real-time bet365 soccer odds, every market, pre-match and in-play, over REST and WebSocket
NBA Data All NBA Stats DATA, Games, Livescore, Standings, Statistics
NBA Stats Current and historical NBA Statistics
NHL Records and Stats NHL historical data and statistics
NoPunt Weekly NFL game picks with model win probability, confidence tier and spread
OddsBench Independent monthly latency benchmark of sports odds APIs, with free JSON and CSV data
Oddsmagnet Odds history from multiple UK bookmakers
OddsRadarWire Live and prematch Betradar odds with raw no-vig probabilities, REST and SSE
OpenF1 Real-time and historical Formula 1 data including laps, car telemetry and positions
OpenFoot API Football fixtures, results, standings, lineups, live events and shot-level xG across 75 competitions
OpenLigaDB Crowd sourced sports league results