Prediction Market

Kalshi Orderbook History

Historical orderbook snapshots for a Kalshi market. Returns yes-side bid/ask levels. Timestamps in milliseconds, prices in cents.

Data refresh: ~5 minutes

get/gateway/v1/prediction-market/kalshi/orderbooks

Request

  • Base URL
    https://api.asksurf.ai
  • Auth
    HTTP bearer

Query parameters

tickerstring required

Kalshi market ticker

Example:KXCITRINI-28JUL01
start_timeinteger

Start time in Unix milliseconds. 0 means 7 days ago.

end_timeinteger

End time in Unix milliseconds. 0 means current time.

limitinteger

Maximum number of snapshots to return

pagination_keystring

Base64 cursor for pagination

Response

OK

$schemastring uri

A URL to the JSON Schema for this object.

Example response

{
  "$schema": "https://example.com/schemas/V2KalshiOrderbooksResponse.json"
}

Changes

No recorded changes to this operation across all 12 revisions of this API.