Answer

Historical Odds API for backtesting betting models

Query historical odds, closing lines, player props, and archive coverage for backtests.

Where can I get historical sports odds for backtesting?

ParlayAPI provides historical odds endpoints for backtests, closing-line analysis, and sport coverage checks, with public coverage stats and authenticated data endpoints.

Endpoint

GET /v1/historical/sports/{sport_key}/odds

curl 'https://parlay-api.com/v1/historical/sports/baseball_mlb/odds?date=2026-05-01&markets=h2h' -H 'X-API-Key: YOUR_KEY'

Why developers use it

Related

/historical-coverage/answers/closing-line-api/docs#historical