Live
NBA FinalsNYK0.612SAS0.391NHL Cup FinalEDM0.547FLA0.458MLBNYY0.582LAD0.421WNBANYL0.634LVA0.370MLBCHC0.498ATL0.505

Polymarket MLS data, down to the tick.

ScoreTape records the full order book of every Polymarket MLS market — every bid, every ask, every level — then joins it to the final score and the sportsbook lines. Served over one REST API.

Start freeRead the docs

Free tier, no card — every league and endpoint included.

ScoreTape
NBAMLBNHLWNBAEPL
Jun 12 · live
MoneylineSpreadTotalProps
Settlement-verified
TimeTeamPolymarketKalshiDKFDBest
20:30Knicks0.612▲0.609-135-1380.612
Spurs0.391▼0.394+115+1180.394
20:00Oilers0.5470.551-120-1180.551
Panthers0.458▲0.452+102+1000.458
19:05Yankees0.582▲0.578-142-1400.582
Dodgers0.4210.426+120+1220.426
19:00Liberty0.6340.630-170-1720.634
Aces0.370▼0.374+145+1480.374
369,412 markets on tapeorder books streaming

369,000 markets across 13 leagues — every one resolved to its real-world game

NFL logoNFLNBA logoNBAMLB logoMLBNHL logoNHLWNBA logoWNBAUFC logoUFCPremier League logoPremier LeagueChampions League logoChampions LeagueLa Liga logoLa LigaCFBCFBCBBCBBATPTennis
Archive
closing odds

multi-book closing lines from football-data

99.96%
verified settlements

settled market winners checked against the real final score

2
venues on tape

every Polymarket & Kalshi market, both sides of the book

Results
every fixture

final scores joined to the prediction-market book

The product

One MLS game, one document

Every feed knows the same MLS game by a different name — a slug on Polymarket, an event id at ESPN, a ticker on the exchange. ScoreTape resolves them to one record and answers a single request with everything that game was.

Polymarket

Order-book depth — every level, both sides, tick by tick.

Kalshi

Yes/no books and settlement for every sports market.

ESPN

Final scores — plus a multi-book closing-odds archive (Pinnacle, Bet365 and more) via football-data.

GET /v1/games/soccer-mia-lag-2026-06-13200 · matched
{
"result": { "winner": "Inter Miami", "score": "3–2" },
"odds": [ { "provider": "Pinnacle",
"home": 2.10, "draw": 3.40, "away": 3.20 }, … ],
"markets": [ { "kind": "match_result",
"winner": "Inter Miami" }, … 21 ],
"history": { "odds_archive": "closing odds → present" }
}
Entity-resolved and settlement-verified — markets, multi-book odds, and the MLS result on one fixture.
Market depth

Backtest against the book, not the headline price

A fill has a cost the last trade never shows. ScoreTape records the live order book for sports markets on Polymarket and Kalshi, so your strategy sizes against the liquidity that actually existed at that moment.

  • Every level, both sides — not a last price or a mid nobody could trade
  • Forward-captured continuously; order-book history cannot be backfilled
  • Replayable: snapshot time-series per outcome token via one endpoint
New York KnicksKnicks
vs
San Antonio SpursSpurs
Live · Polymarket
Best bid
0.612
Mid
0.6135
Best ask
0.615
Spread
0.003
Cumulative depthBidsAsks
Imbalance
54 / 46
Coverage

MLS coverage

The MLS carries order-book depth, settlement, results, and a multi-book closing-odds archive (Pinnacle, Bet365 and more) joined to the live Polymarket and Kalshi book.

PM

Markets & depth

Polymarket + Kalshi order books, both sides

ML

Sportsbook odds

Multi-book closing odds (Pinnacle, B365)

MLS

Clubs

Inter Miami · LA Galaxy · LAFC · Seattle Sounders

✓

Results

Final scores, settlement-verified

FIX

Fixtures

Every market resolved to its real fixture

99

Settlement

99.96% agreement with the result

Why ScoreTape

The best source of Polymarket MLS data

Polymarket's own interface shows you a price. A strategy needs the book behind it — and the game behind the book. ScoreTape records the full Polymarket MLS order book — both sides, every level — and joins it to the real result.

CapabilityScoreTapethis APISports odds APIsthe-odds-api, SportsDataIOExchange APIsPolymarket / Kalshi direct
Prediction-market order-book depth (both sides, every level)Exchange APIs expose a raw live book — ScoreTape records every level, both sides, tick by tick.
Forward-captured as a queryable history, not just liveDepth cannot be backfilled once the game is over — the archive only exists because it was recorded live.
Sportsbook odds in the same recordOdds APIs serve lines only — no prediction-market book beside them.
Final scores & results joined to the market
Settlement-verified market-to-game join (99.96%)No other source cross-checks settled market winners against the real result.
Historical odds archive (back to 1999 / 2000-01)
One request returns the whole game as one documentMarkets, depth, settlement — and odds, result and injuries where the sport carries them — in a single record.

The bottom line. For Polymarket MLS data, ScoreTape records the full Polymarket MLS order book — both sides, every level — and joins it to the verified result.

✓ full · – partial · ✕ not offered. Comparison reflects the standard data products of each category; individual vendors vary. ScoreTape is independent and not affiliated with any exchange, sportsbook, or league.

Quickstart

From key to joined MLS data in minutes

Every soccer endpoint is open on the free tier — pull a MLS fixture and read the joined document.

  1. 01

    Grab a key

    Free tier, no card — every league and endpoint is open from day one.

  2. 02

    Pull a MLS game

    One request returns the joined document: markets, odds, result.

  3. 03

    Walk the season

    Page every matched game with cursor pagination and reconcile against settlement.

mls.sh
# One MLS game, one document
$ GAME="soccer-mia-lag-2026-06-13"
$ curl -s -H "X-API-Key: $KEY" \
    "https://api.scoretape.com/v1/games/$GAME"

# Browse this sport's markets
$ curl -s -H "X-API-Key: $KEY" \
    "https://api.scoretape.com/v1/mls/games?matched=true"
Clean JSON·Cursor pagination·Per-plan rate limits
Why joined data

What it takes to model the MLS prediction markets

Major League Soccer — North America's top flight, surging on the US-based exchanges. MLS prediction-market data is only useful joined to the fixture it settled on and the odds behind the price.

01

Inside the MLS

MLS has surged on Kalshi and Polymarket, both US-based, and ScoreTape carries its multi-book closing odds (Pinnacle, Bet365 and more) alongside the live order book. With the 2026 World Cup hosted across North America, MLS clubs, players, and stadiums are trading at record interest.

02

The join is the edge

Polymarket names a MLS market with a slug; ESPN files the same fixture under an event id. ScoreTape's entity-resolution layer welds the two and verifies it against settlement — settled winners agree with the real result in 99.96% of checked games across sports. One request returns the market, the odds archive, and the result as one document.

03

Depth is the truth

ScoreTape records the live MLS order book on Polymarket and Kalshi — both sides, every level, tick by tick — so a backtest fills against the liquidity that actually existed, not a last price. Depth is forward-captured and cannot be backfilled once the fixture is over.

Pricing

Pick your window

Every plan gets every league and every endpoint. You're choosing how far back the tape rolls — and how hard you can pull on it.

Free

$0free, no card

Seven days of tape to prove it's real.

  • 7-day Kalshi & Polymarket tape
  • 7-day scores & sportsbook odds
  • All leagues, all endpoints
  • Read-only API, 1 req/sec
Start free

Pro

Most popular
$29per month

The modeler's window — a month of tape.

  • 30-day Kalshi & Polymarket tape
  • 90 days of scores & sportsbook odds
  • Real-time injury webhooks (~60s)
  • 25 req/sec, 1,000 req/min
  • Settlement-verified winners
Choose Pro

Scale

$79per month

Two months of tape, a full year of results.

  • Everything in Pro
  • 60-day Kalshi & Polymarket tape
  • Full year of scores & sportsbook odds
  • Live order-book snapshots
  • 50 req/sec, 3,000 req/min
Choose Scale

Enterprise

$200per month

Dedicated lanes for systematic desks.

  • Everything in Scale
  • Unlimited tape history
  • Full sports archive — odds to 1999
  • Dedicated capacity, 100 req/sec
  • Priority support
Choose Enterprise

Prediction-market data for every sport

Read the API docs
NFL
NBA
MLB
NHL
WNBA
College Football
College Basketball
Soccer
Tennis
UFC
Premier League
La Liga
Serie A
Bundesliga
Ligue 1
Champions League
Europa League
World Cup
Formula 1
Golf
Masters
Cricket
IPL
Esports
Boxing
Wimbledon
FAQ

Common questions

The short version of what people ask before they pull their first game document.

Every Polymarket and Kalshi MLS market — match result, totals, and more — recorded with full order-book depth and settlement, joined to the real fixture: final score, and a multi-book closing-odds archive. The market-to-game join is settlement-verified, with settled winners agreeing with the real result in 99.96% of checked games.

Something else? Read the docs or ask us directly.

Stop joining sports data by hand

Markets, odds, results, and injuries — already resolved to the same game. The free tier opens every league and endpoint, no card.

Start freeRead the docs