[
  {
    "id": "<string>",
    "exchange": "<string>",
    "market_id": "<string>",
    "yes_price": 123,
    "no_price": 123,
    "count": 123,
    "taker_side": "<string>",
    "last_update": "2023-11-07T05:31:56Z"
  }
]

KLSI

Get KLSI Trade History

Retrieve historical trade executions for a Kalshi market. Each trade includes price, quantity, and whether it was a buy or sell.

What you get

Trade timestamp and unique ID
Execution price (yes_price and no_price)
Trade count (number of contracts)
Taker side (buy/sell)

Use cases

Analyze trading patterns and volume
Calculate VWAP (Volume Weighted Average Price)
Build price charts and candlesticks
Detect unusual trading activity

Note Trade history is ordered by time, newest first.

Example

Request: GET /api/v1/klsi/KXNCAAFTOTAL-25NOV29NDSTAN-41/tradehistory
Header: X-API-Key: YOUR_API_KEY

GET

api

klsi

{klsi_id}

tradehistory

[
  {
    "id": "<string>",
    "exchange": "<string>",
    "market_id": "<string>",
    "yes_price": 123,
    "no_price": 123,
    "count": 123,
    "taker_side": "<string>",
    "last_update": "2023-11-07T05:31:56Z"
  }
]

Authorizations

X-API-Key

string

header

required

Your API key (get one from the test-key endpoint above)

Path Parameters

klsi_id

string

required

Kalshi market ID

Response

200 - application/json

Trade history

string

exchange

string

market_id

string

yes_price

number

no_price

number

count

integer

taker_side

string

last_update

string<date-time>

Get KLSI orderbook Get KLSI Orderbook Analytics