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Sport key chess

Chess odds API

Pre-match and live chess odds from bookmakers, with a margin-adjusted fair price on every market, in one consistent JSON format. 17 competitions.

Get startedChoose chess competitions

Popular chess competitions

CompetitionCountry or tourLeague key
Airthings MastersTournaments and eventschess_airthings_masters
CandidatesTournaments and eventschess_candidates
Clutch Chess InternationalTournaments and eventschess_clutch_chess_international

See all 17 chess competitions and pick the ones for your plan.

Countries and tours

Chess markets

You get every market the bookmakers offer for each event. The most common ones:

  • Match winner
  • Draw
  • Tournament winner

Which plan fits

Choose chess competitions as part of your plan's leagues, mixed with any other sport: Solo 10, Pro 25, Scale 60 and Elite every league. Live odds start on Pro.

Want every chess competition? Add the whole sport for $500/month, or single leagues for $100/month each.

See plans and prices

Example request

One request returns the bookmaker price and the fair price for every outcome. Sport and league keys are being added to the API; the request shows the format.

GET https://api.valueoddsapi.com/v1/odds?sport=chess&league=chess_airthings_masters&phase=prematch
Authorization: Bearer YOUR_API_KEY
{
  "example": true,
  "data": [
    {
      "event_id": "example-001",
      "sport": "chess",
      "league": "chess_airthings_masters",
      "phase": "prematch",
      "bookmaker": "example-book",
      "observed_at": "2026-11-03T12:00:00Z",
      "data_age_seconds": 0.25,
      "market": {
        "id": "match_winner",
        "period": "full_time",
        "line": null,
        "status": "open",
        "method": "proportional_v1",
        "fair_status": "available",
        "overround": 0.0434,
        "outcomes": [
          {
            "id": "home",
            "bookmaker_odds": 1.8,
            "fair_odds": 1.88,
            "fair_probability": 0.5325
          },
          {
            "id": "away",
            "bookmaker_odds": 2.05,
            "fair_odds": 2.14,
            "fair_probability": 0.4675
          }
        ]
      }
    }
  ]
}

Example data, not live prices. Fair odds use proportional margin removal. Read the integration guide

Questions about chess odds

Which chess competitions does the API cover?

The catalog lists 17 chess competitions, taken from bookmakers' own public listings. Pick the ones you need on the sports page; your plan sets how many leagues you choose.

Do you have live chess odds?

Yes. Pro and higher plans stream pre-match and live odds in real time over WebSocket and REST. Solo covers pre-match odds.

Which chess markets are included?

Every market the bookmakers offer for the event, with the original price and a margin-adjusted fair price side by side.

How do I request chess odds in the API?

Use the sport key chess and a league key such as chess_airthings_masters. League keys are the sport key plus the competition name in snake case.

Other sports

Get chess odds into your product

Bookmaker odds and fair odds in one format, from pre-match to live.

Get startedSee pricing