Most sports data APIs make you pick one league, sign a contract, or both. PlayCaller's DaaS API covers five sports — NFL, MLB, NBA, CFB, and soccer (EPL + MLS) — behind a single API key, with a free tier you can start using in under a minute.
What's actually in the free tier
The Developer Sandbox is $0, requires no credit card, and runs for 14 days with real production data — not a sample dataset. It covers 25 of the platform's 28 endpoints (the machine-learning intelligence feed is reserved for paid tiers). That's enough to pull live games, standings, rosters, and injury signals across every covered sport.
28 endpoints, six families
- NFL Intelligence (8 endpoints) — beat reporter signals, injury feed, historical trends, and the pre-composed
/v1/feedintelligence dossier - MLB (9 endpoints) — players, teams, rosters, games, standings, scoring leaders and categories
- NBA (4 endpoints) — games, standings, teams, players
- CFB (3 endpoints) — games, conference standings, AP Top 25 / CFP rankings
- Soccer (2 endpoints) — EPL and MLS games and league standings
- Meta (2 endpoints) — sport/endpoint discovery, usage and rate-limit info for your own key
Every endpoint returns JSON over HTTPS with a single header — X-PlayCaller-Key — no OAuth handshake, no per-endpoint contracts.
Where it's different from a raw stats feed
Most sports data APIs stop at scores and box scores. PlayCaller's NFL, NBA, and MLB coverage also includes a validated machine-learning intelligence layer — confidence scores, heat signals, and pitcher-trend reads, each backed by a published AUC-ROC and decile-lift number, not a marketing claim. That part lives behind the paid tiers; the free Sandbox is the raw data layer underneath it.
Ready to build? Start a free 14-day Developer Sandbox — no credit card, API key in under a minute.