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BALLDONTLIE vs ParlayAPI (2026)
Short answer: BALLDONTLIE scores clearly higher overall (79 vs 57). ParlayAPI is the better pick for developers building odds, props and arbitrage tools for internal use, with streaming and low entry prices.
From public data checked . How we know

Choose BALLDONTLIE if you…
Sports data API
Best for: Developers building sports apps, dashboards or AI-assisted projects who want stats, box scores and odds for many leagues from one REST API with a free entry plan.
- ✓ need commercial use allowed in the public terms
- ✓ build a betting product and need that allowed in the public terms
- ✓ value a large open-source ecosystem of wrappers and examples
- ✓ care most about what developers report in practice
Not ideal for: Companies that want to offer a competing sports-data API or feed built on its data, which the terms forbid.
What developers say
Long-popular free NBA stats API, now covering NBA, NFL, MLB and EPL with a free tier and paid keys. Beginners use it for tutorials, React projects and portfolio apps; betting and fantasy builders pair it with odds feeds. Recommended as an alternative to nba_api and API-Sports. Little discussion of reliability or pricing.

Choose ParlayAPI if you…
Odds API
Best for: Developers building odds, props and arbitrage tools for internal use, with streaming and low entry prices.
- ✓ want a lower entry price ($5/mo vs $9.99/mo)
- ✓ want WebSocket push instead of polling
Not ideal for: Public or customer-facing products, resale or white-label without a signed agreement; self-serve plans are internal-use only.
What developers say
Young odds aggregator pitched as a cheaper drop-in for The Odds API, with a free 1,000-credit tier, prediction-market books and MCP tooling. Nearly everything found is vendor-written posts, directory submissions or the founder's own repos. No independent user feedback on reliability, accuracy or support, so little is actually known.
Side by side
| BALLDONTLIE | ParlayAPI | |
|---|---|---|
| SportDex Score | 79/100 (#2) | 57/100 (#27) |
| Popularity | 74 | 29 |
| Community & reliability | 81 | Not enough data |
| Transparency | 100 | 90 |
| Developer experience | 62 | 73 |
| Type | Sports data API | Odds API |
| Starting price | from $9.99/mo | from $5/mo |
| Free tier | Yes | Yes |
| Free trial | 2 days | Not stated |
| Sports | Basketball, American football, Baseball, Ice hockey, Football (soccer), Tennis, Golf, Formula 1, MMA, Esports | Multi-sport (40+) |
| Data | Historical data, Odds, Play-by-play, Player props, Player stats, Live scores, Team stats | Historical data, Odds, Play-by-play, Player props, Live scores |
| Delivery | Webhooks + polling | Streaming (WebSocket, SSE) |
| Protocols | REST, Webhooks | REST, WebSocket, SSE |
| Live / in-play | Yes | Yes |
| Commercial use | Commercial: Allowed | Commercial: Licence required |
| Betting products | Betting: Allowed | Betting: not disclosed |
| Documentation | Docs | Docs |
| Developer discussions | 15 | 4 |
| GitHub repos | 902 | 21 |
| Community tone | Mostly positive | Too little discussion |
Empty fields mean the provider does not say, not that the feature is missing.
Quick answers
- Is BALLDONTLIE or ParlayAPI better?
- BALLDONTLIE scores clearly higher overall (79 vs 57). ParlayAPI is the better pick for developers building odds, props and arbitrage tools for internal use, with streaming and low entry prices.
- Which is cheaper, BALLDONTLIE or ParlayAPI?
- BALLDONTLIE: from $9.99/mo. ParlayAPI: from $5/mo. Entry plans differ in limits and coverage, so compare what each plan includes.
- Do BALLDONTLIE and ParlayAPI have a free tier?
- BALLDONTLIE: yes. ParlayAPI: yes.