Sports odds API · Buyer guide

Sports odds API with the exchange book and final result attached

ScoreTape adds the context missing from ordinary odds feeds. Where coverage supports it, a canonical game record carries multi-book sportsbook prices alongside prediction-market depth, settlement, the final score, player props, and the injury state that preceded the game.

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sports odds API

primary buyer intent

260 US searches/month

fresh DataForSEO evidence

Explicit

coverage and product limits

Direct answer

ScoreTape's sports odds API is best suited to buyers who need sportsbook lines and prediction-market liquidity in the same model. It supports odds comparison, closing-line research, executable-price simulation, and outcome verification without maintaining a separate market-to-game join.

Odds-comparison applicationsClosing-line and market-efficiency researchersPrediction-market execution modelsSports analytics teams joining odds to results

What you can buy

Coverage that answers a product question.

Multi-book line context

Read available moneyline, spread, total, and sport-specific prices beside a canonical game identity.

Prediction-market depth

Compare a sportsbook quote with both sides and every captured level of the corresponding Polymarket or Kalshi book.

Historical closing lines

Use NFL history back to 1999 and the five major European domestic soccer leagues back to 2000/01, with other history disclosed by competition.

Results and settlement

Connect odds to the score or competitor result that resolved the event and to the prediction contract's own settlement.

Integration surface

GET /v1/games/{slug}

Start with a bounded real request. Confirm authentication, response shape, source coverage, pagination, rate limits, and missing-data behavior before planning a migration.

curl "https://api.scoretape.com/v1/games/{slug}" \
  -H "Authorization: Bearer $SCORETAPE_API_KEY"

Map

Resolve league, event, participant, market type, and provider identifiers.

Normalize

Compare prices without dropping timestamp, book, side, or market rules.

Measure

Calculate movement, closing-line value, spread, and available exchange size.

Audit

Grade against the joined result and preserve incomplete coverage.

Buyer evaluation

Verify the feed before you commit.

Criterion	ScoreTape approach	Acceptance test
Book coverage	Multi-book where supported plus two prediction venues	List exact books by target league
Price meaning	Sportsbook odds and exchange probabilities remain distinct	Check normalization and fees
Timestamp	Recorded observation time retained	Test late updates and closing definition
History	League-specific archive disclosed	Query earliest and latest sample
Outcome	Result and market settlement stay linked	Inspect representative finals

Product boundaries to retain in the decision

Prediction-market depth is forward-captured and cannot be reconstructed after a market closes.
Sportsbook history differs by league: NFL closing lines reach 1999 and the five major European domestic soccer leagues reach 2000/01; other competitions have shorter or forward-growing coverage.
Live WebSocket capacity and retained history depend on plan. REST discovery is available on every tier, but buyers should verify current limits before production sizing.
ScoreTape is independent and is not an exchange, sportsbook, league, or source of betting recommendations.

Questions buyers ask

Clear answers before checkout.

Is this a real-time sportsbook odds feed?

ScoreTape exposes current and historical odds where the joined source carries them, but exact provider cadence and league coverage must be verified. The core product also includes prediction-market depth, which follows its own venue capture behavior.

Does it include historical odds?

Yes, with different start dates by league. NFL closing lines reach 1999 and major domestic European soccer reaches 2000/01; do not assume the same archive for every sport.

Can I compare Polymarket and Kalshi prices?

Yes. ScoreTape normalizes both venues while preserving native market identity and settlement rules.

Does the API include results?

Supported game and competition records include final scores or per-competitor results and the prediction market's settlement, enabling verification rather than price-only analysis.

Pricing

Choose capacity, not venues

One account and one API for the complete ScoreTape lineup. Polymarket and Kalshi sports coverage ships together; tiers change history, throughput, and live-book concurrency.

Explorer

$0free, no card

A limited sample of the complete ScoreTape API.

Start free

7-day unified history
Sports REST: Polymarket + Kalshi
Read-only API, 1 req/sec
Sub-second event-driven snapshots
BTC markets (latest, capped)
Live WebSocket stream: 1 BTC subscription
Backtest Lab + 1 paper-trading strategy

Quant

Desk Lite

$79per month

3× the history, 2× the throughput of Quant.

Get Desk Lite

90-day unified history (3× Quant)
API 50 req/sec, 3,000 req/min
Everything in Quant
Every supported venue — no add-ons
Sports REST + 2 live sports books
Live WebSocket: 25 subscriptions, 2 connections
15 paper-trading strategies

Desk

Full archive

$200per month

Dedicated capacity for systematic desks.

Get Desk

Full historical archive — our deepest window
Sports full archive across every supported league
Dedicated capacity, 100 req/sec
6,000 req/min sustained
Everything in Desk Lite
Priority backfill requests
Live WebSocket: 100 subscriptions, 5 connections, wildcards + 3 sports books
7-day production-latency evaluation available on request
40 paper-trading strategies

Continue evaluating

Test your real league and workflow.

Create a free key, inspect current coverage, and run representative requests before choosing capacity.