Developer portal
SplitWinner API access.
Sandbox first. Then the 2026 beta.
The sandbox is free and self-serve — sign up, mint a key, and integrate against the full API surface in minutes: every endpoint plausibly-live mocked, real shapes and error codes, no real data. Production access ships through the 2026 beta cohort — a limited set of sportsbook desks at a fixed seasonal price, in writing; the operator takes every call.
Sandbox
Free, self-serve
- Every endpoint, plausibly-live mocked
- Real shapes + error codes, zero real data
- 10 rpm, ~90% integration coverage
- No credit card. No NDA. No call.
Paid tiers
By application
- Real-time, full feed columns
- Direct contract — MSA, DPA, AUP
- Invoice + ACH/wire — no merchant fees
- Contract-set rate ceilings
Browse the API reference at splitwinner.com/docs (every route, every schema, every error code), or grab the raw OpenAPI 3.1 JSON straight from api.splitwinner.com/openapi.json.
The audit ledger is github.com/SplitWinner/audit_trail. Clone it, run verify.py. We don't ask you to trust us; the proof is open.
Use policy. All responses (sandbox and paid) are licensed for your direct integration only. No scraping, model distillation or training, cataloging, third-party disclosure, resale, or redistribution. Sandbox values are synthetic and additionally cannot be presented as real SplitWinner predictions. Full terms at /legal/api-terms §3.