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GET
Historical orderbook
Full orderbook snapshots with YES bids, NO bids, and derived best bid/ask from the YES perspective. Without start_time/end_time, returns the most recent snapshots.

Parameters

market_id
string
required
Kalshi market ticker (e.g., KXFEDDECISION-26APR-H0).
start_time
integer
Start time in Unix ms. Omit with end_time to get latest data.
end_time
integer
End time in Unix ms. Omit with start_time to get latest data.
granularity
string
default:"1m"
Snapshot interval: 1m or 5m.
limit
integer
default:"100"
Max rows per page (1-200).
pagination_key
string
Cursor from previous response for next page.

Example

Response