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Documentation Index

Fetch the complete documentation index at: https://docs.kalshi.com/llms.txt

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Properties

NameTypeDescriptionNotes
tickerstr
client_order_idstr[optional]
sidestr
actionstr
countintOrder quantity in contracts (whole contracts only). Provide count or count_fp; if both provided they must match.[optional]
count_fpstrFixed-point contract count string (2 decimals, e.g., "10.00"; referred to as "fp" in field names). Requests accept 0–2 decimal places (e.g., "10", "10.0", "10.00"); responses always emit 2 decimals. Fractional contract values (e.g., "2.50") are supported on markets with fractional trading enabled; the minimum granularity is 0.01 contracts. Integer contract count fields are legacy and will be deprecated; when both integer and fp fields are provided, they must match.[optional]
yes_priceint[optional]
no_priceint[optional]
yes_price_dollarsstrUS dollar amount as a fixed-point decimal string with up to 6 decimal places of precision. This is the maximum supported precision; valid quote intervals for a given market are constrained by that market’s price level structure.[optional]
no_price_dollarsstrUS dollar amount as a fixed-point decimal string with up to 6 decimal places of precision. This is the maximum supported precision; valid quote intervals for a given market are constrained by that market’s price level structure.[optional]
expiration_tsint[optional]
time_in_forcestr[optional]
buy_max_costintMaximum cost in cents. When specified, the order will automatically have Fill-or-Kill (FoK) behavior.[optional]
post_onlybool[optional]
reduce_onlybool[optional]
sell_position_floorintDeprecated: Use reduce_only instead. Only accepts value of 0.[optional]
self_trade_prevention_typeSelfTradePreventionType[optional]
order_group_idstrThe order group this order is part of[optional]
cancel_order_on_pauseboolIf this flag is set to true, the order will be canceled if the order is open and trading on the exchange is paused for any reason.[optional]
subaccountintThe subaccount number to use for this order. 0 is the primary subaccount.[optional] [default to 0]