Same v4 endpoints, same response shapes, same query parameters. 30+ sources, with real American odds on every line. Polymarket and Kalshi integrated as prediction-market signals. WebSocket streaming on Business+. Sub-5-second freshness on the major books. Migrate in one config change.
Apples-to-apples. ParlayAPI numbers are measured from our live API (as of 2026-08). the-odds-api numbers are quoted from the-odds-api.com's own pricing page, read 2026-08-09. Checkmarks are features either product offers.
| Feature | ParlayAPI | the-odds-api |
|---|---|---|
| Distinct sources (24h) | 45 sources (books + sharp signals), incl. DraftKings, FanDuel, Pinnacle, bet365, Caesars, BetMGM, BetRivers, Bovada, Fliff, Novig | over 40 bookmakers (per their site) |
| DFS pick'em | PrizePicks, Underdog, Sleeper, Betr, ParlayPlay, Pick6 (standard / demon / goblin odds types surfaced) | Sportsbook-focused; DFS pick'em not a first-class product |
| Prediction markets | ✓ Polymarket + Kalshi as sharp signals | × Not advertised |
| Player prop coverage | 43 sources writing player props across 4,000+ distinct prop markets, paired O/U on TOA-canonical keys | Player props available; fewer sources per market |
| Live scores | ✓ /v4/sports/{sport}/scores | ✓ |
| Historical odds | 1.7M+ closing game lines back to 2005; 30M+ prop closing lines since 2022 | ✓ Included on all paid tiers |
| WebSocket streaming | ✓ /ws/odds/{sport}?apiKey= on Business+ | × Not advertised |
| Freshness / cadence | Sub-5-second freshness on major books; live push over WebSocket, REST polling otherwise | REST polling; no streaming advertised |
| API shape | Mirrors the-odds-api's v4 REST shape: same paths, same JSON, same query params | Original |
| Endpoint paths | /v4/sports/{sport}/odds (and /v1 alias) | /v4/sports/{sport}/odds |
| Free tier | 1,000 credits/month, no credit card required | 500 credits/month |
| Paid pricing | Lower at every comparable tier, see /pricing for current prices | $30 (20K) / $59 (100K) / $119 (5M) / $249 (15M) |
the-odds-api is older, simpler, and more battle-tested, with a much larger base of tutorials, Stack Overflow answers, and community code you can copy from day one. It now covers over 40 bookmakers of its own, and it includes historical odds on every paid tier. If you want the most-documented option and don't need WebSocket streaming, prediction-market signals, or DFS pick'em, it is a solid, proven choice.
ParlayAPI prices and credit quotas can change, so we link to the live /pricing page rather than freeze a number here. the-odds-api's tiers below are quoted from their own pricing page, read 2026-08-09.
Paid tiers scale up from there, with WebSocket streaming from Business up. We come in lower than the-odds-api at every comparable credit tier; check your usage against the current ladder:
See live pricing →Source: the-odds-api.com, read 2026-08-09. No higher tier advertised.
ParlayAPI mirrors the-odds-api's REST shape. Switch the base URL, you're done. Same paths, same response JSON, same query parameters.
# before curl "https://api.the-odds-api.com/v4/sports/basketball_nba/odds?regions=us&markets=h2h&apiKey=YOUR_TOA_KEY" # after curl "https://parlay-api.com/v4/sports/basketball_nba/odds?regions=us&markets=h2h&apiKey=YOUR_PARLAY_KEY"
# before url = "https://api.the-odds-api.com/v4/sports/basketball_nba/odds" # after url = "https://parlay-api.com/v4/sports/basketball_nba/odds"
pip install parlay-api from parlay_api import ParlayAPI client = ParlayAPI(api_key="YOUR_KEY") events = client.odds("basketball_nba", regions="us", markets="h2h,spreads,totals") # Plus our extensions props = client.props("baseball_mlb", markets=["player_strikeouts"]) fair_o, fair_u = ParlayAPI.devig(over_price=-110, under_price=-110)
SDK on GitHub: JacobiusMakes/parlay-api-python (MIT-licensed, ships with example +EV scanner, arbitrage finder, and WebSocket stream tools).
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