Is there a free sports betting API?

Yoseri's API has a free developer tier with a low monthly request quota — enough to prototype an integration, build a side-project, or evaluate the data quality before committing to a paid plan.

What does the Yoseri API return?

The API exposes pre-calculated edge, expected value (EV), Kelly-optimal stake sizing, closing line value (CLV), true probability estimates, Monte Carlo bankroll simulations, and odds across 100+ bookmakers. Documentation: https://api.yoseri.com/docs.

Does the API support webhooks?

Yes. The API supports outbound webhooks for new picks, settled positions, CLV grading, and bankroll-state changes. Webhook payloads are signed with HMAC-SHA256 so you can verify authenticity at your endpoint.

What's the API's rate limit?

Rate limits scale with the developer plan. Free tier: 60 requests per minute. Paid tiers scale up to multiple thousands of requests per minute with sliding-window enforcement.

How is the Yoseri API authenticated?

API keys, issued per project in the developer portal at developers.yoseri.com. Keys are scoped to specific endpoints (read-only by default) and can be rotated without downtime.

B2B API

Plug Yoseri into your stack

Pre-calculated edge, EV, Kelly sizing, CLV, and true probabilities — delivered via REST API. Build smarter betting apps, power your models, automate your edge.

Get API Access View API Docs

Swagger auto-documented 99.9% uptime SLA HMAC-signed webhooks

5 API PRODUCTS

Everything you need, nothing you don’t

Picks FeedGET

/api/v1/b2b/picks

Filtered picks with edge %, EV, Kelly sizing, and AI confidence score. The same data that powers Yoseri Terminal.

Probability EngineGET

/api/v1/b2b/probabilities

True probability vs implied probability per match. The ‘brain’ of Yoseri — devigged consensus across all books.

CLV TrackerGET

/api/v1/b2b/clv

Closing line value captured automatically on 3 markets. Rare data — most competitors don’t offer it at all.

Monte Carlo SimulationsPOST

/api/v1/b2b/montecarlo

Bankroll projections with 50–5,000 scenarios. Kelly, flat, or % bankroll modes. Unique in the sector.

Webhooks & AlertsPOST

/api/v1/b2b/webhooks

Real-time POST to your endpoint when a pick exceeds your edge or confidence threshold. HMAC-SHA256 signed.

QUICK START

One header. That’s it.

Add your API key as a header and start querying. Swagger docs auto-generated.

cURL

curl -H "X-API-Key: olab_YOUR_KEY" \
  https://app.yoseri.com/api/v1/b2b/picks?min_edge=2&limit=10

{
  "count": 3,
  "picks": [
    {
      "match": "Lakers vs Celtics",
      "selection": "Lakers ML",
      "edge_pct": 4.2,
      "kelly_fraction": 0.031,
      "confidence": 78
    }
  ],
  "generated_at": "2026-04-13T18:30:00Z"
}

API DOCUMENTATION

Full reference, always up to date

Every endpoint, every parameter, every response schema — auto-generated from the running API. Try calls live against your key, right from the browser.

Swagger / OpenAPI 3.0

Interactive documentation with request builder, auth helper and example payloads for every B2B endpoint.

Open API Docs

SIMPLE PRICING

Three tiers. Built for how you use the API.

Builder

$249/mo

For solo devs, indie apps & side projects.

3,000 API calls / day
7 sports (NFL, NBA, MLB, NHL, EPL, La Liga, Serie A)
Endpoints: Picks Feed + Edge + Kelly
Email support — 48h response
No webhooks

Get API Access

Ready to build?

Create your API key in 30 seconds. Start with the Developer tier and upgrade anytime.

Get API Access → API Docs

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