Sports scores API · Buyer guide

Sports scores API for verifying markets, props, and settlements

ScoreTape treats a score as outcome evidence, not an isolated widget. Supported final scores, box scores, play-by-play, competitor results, and player lines are resolved to the same game and athlete identities used by prediction markets and sportsbook odds.

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sports scores API

primary buyer intent

110 US searches/month · $8.43 CPC

fresh DataForSEO evidence

Explicit

coverage and product limits

Direct answer

ScoreTape's sports scores API is designed for market and model verification. It connects the final score or competitor result to the exact Polymarket and Kalshi markets, available sportsbook lines, props, and settlement records associated with that event.

Bet grading and market-resolution systemsPrediction-market researchersProp and player analytics buildersAgents that must cite the outcome behind a market

What you can buy

Coverage that answers a product question.

Canonical event results

Use a stable game record rather than joining on display names and scheduled time alone.

Settlement verification

Compare the market winner with the real result; the checked cross-sport sample reports 99.96% agreement.

Sport-specific detail

Access box scores, line scores, play-by-play, win probability, or competitor results where supported.

Props resolved to athletes

Link supported player-prop markets to real rosters and result lines instead of fuzzy name-only records.

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"

Find

Discover a game by league, date, participants, or market reference.

Resolve

Load the canonical event and its source IDs.

Join

Read scores with markets, odds, props, and settlement.

Grade

Apply market rules and keep postponed, cancelled, partial, or unmatched states explicit.

Buyer evaluation

Verify the feed before you commit.

Criterion	ScoreTape approach	Acceptance test
Event identity	Canonical game with source mappings	Test duplicate names and reschedules
Score detail	Varies honestly by sport	List required box or play fields
Market linkage	Prediction contracts attached	Inspect spread, total, and prop samples
Settlement	Venue result preserved beside real result	Test edge cases
Latency	Source-dependent update path	Measure target league in production

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.

Does ScoreTape provide live scores?

Score and play updates depend on the supported source and league. Buyers requiring a strict sub-second official-score SLA should validate that requirement directly rather than infer it from prediction-market delivery.

Which score details are included?

Capabilities vary: major US sports may include box or play-by-play detail, soccer includes match results and fixtures, and individual sports use competitor or tournament results.

Can the score grade prediction-market contracts?

The API keeps the real result and venue settlement together. Contract-specific rules still matter, so grading logic should use the market definition rather than score alone.

Are props connected to players?

Supported player-prop markets are entity-resolved to real athletes and can be checked against the relevant game or box-score context.

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.