CreateOrder

post https://api.elections.kalshi.com/trade-api/v2/portfolio/orders

Endpoint for submitting orders in a market.

Body Params

Order create input data

action

string

required

Specifies if this is a buy or sell order.

buy_max_cost

int64

If type = market and action = buy, buy_max_cost represents the maximum cents that can be spent to acquire a position.

client_order_id

string

required

count

int32

required

Number of contracts to be bought or sold.

expiration_ts

int64

Expiration time of the order, in unix seconds.

If this is not supplied, the order won't expire until explicitly cancelled.
This is also known as Good 'Till Cancelled (GTC).

If the time is in the past, the order will attempt to partially or completely fill
and the remaining unfilled quantity will be cancelled. This is also known as Immediate-or-Cancel (IOC).

If the time is in the future, the remaining unfilled quantity order will expire
at the specified time.

no_price

int64

Submitting price of the No side of the trade, in cents.
Exactly one of yes_price and no_price must be passed. If both prices are passed, return 400.

post_only

boolean

If this flag is set to true, an order will be rejected if it crosses the spread and executes.

sell_position_floor

int32

SellPositionFloor will not let you flip position for a market order if set to 0.

side

string

required

Specifies if this is a 'yes' or 'no' order.

ticker

string

required

The ticker of the market the order will be placed in.

type

string

required

Specifies if this is a "market" or a "limit" order.
Note that either the Yes Price or the No Price must be provided for limit orders.

yes_price

int64

Submitting price of the Yes side of the trade, in cents.
Exactly one of yes_price and no_price must be passed. If both prices are passed, return 400.

Response

Language


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curl --request POST \
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     --url https://api.elections.kalshi.com/trade-api/v2/portfolio/orders \
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     --header 'accept: application/json' \
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     --header 'content-type: application/json'

Choose an example:

application/json

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