Get Historical Markets

GET /historical/marketsPublished by Kalshi Prediction Markets
curl -X POST https://api.orthogonal.com/v1/run \
-H 'Authorization: Bearer orth_live_••••' \
-H 'Content-Type: application/json' \
-d '{
"api": "kalshi",
"path": "/historical/markets",
"method": "GET"
}'

Free

About this endpoint

List markets archived to the historical database (settled before the historical cutoff). Filters are mutually exclusive. Useful for backtesting and research.

Query parameters

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All 37 Kalshi Prediction Markets endpoints