Cross-Platform Matches

Find the same real-world event listed on both Polymarket and Kalshi. Each match includes a confidence score and both platform listings.

GET /v1/matching-markets

Cross-Platform Matches

cURL

curl --request GET \
  --url https://api.arbiterapi.com/v1/matching-markets \
  --header 'X-API-Key: <api-key>'

200

{
  "matches": [
    {
      "polymarket": {},
      "kalshi": {},
      "score": 123,
      "confidence": "<string>"
    }
  ],
  "total": 123
}

Authorizations

X-API-Key · string · header · required

Query Parameters

min_score · number | null

Minimum match score (0-100)

confidence · string | null

Filter by confidence: high, medium

q · string | null

Search within matched market titles

polymarket_market_slug · string[] | null

Find matches for specific Polymarket slugs

kalshi_event_ticker · string[] | null

Find matches for specific Kalshi event tickers

limit · integer · default: 50

Required range: 1 <= x <= 200

offset · integer · default: 0

Required range: x >= 0

Response

200

application/json

Successful Response

matches · MatchedMarket · object[] · required

Show child attributes

total · integer · required