Kalshi API endpoint
Returns the order book for one Kalshi market by `ticker`: bid levels for the `yes` side and the `no` side, each with `price` and `size`. Kalshi publishes bids only, so ask levels are not listed. The response also carries a `raw_unit_hint` for the price unit.
/kalshi/market/{ticker}/orderbookPath parameters:
ticker: Kalshi market ticker, for example KXELONMARS-99.Query parameters: none.
Notable response behavior:
| Field | Filled in, of 35 checked | Values in the sample |
|---|---|---|
| price | 35 | 0.01 to 0.89, median 0.51 |
| size | 35 | 7.84 to 19,691, median 400 |
| Parameter | Type | Required | Default | Description | Example |
|---|---|---|---|---|---|
| ticker (path) | string | Yes | Kalshi market ticker | KXELONMARS-99 | |
| x-api-key (header) | string | Yes | API key required |
curl -X GET "https://api.crawlora.net/api/v1/kalshi/market/KXELONMARS-99/orderbook" \ -H "x-api-key: $CRAWLORA_API_KEY"
{
"code": 200,
"msg": "OK",
"data": {
"ticker": "KXELONMARS-99",
"yes": [
{
"price": 0.08,
"size": 185.72
}
],
"no": [],
"raw_unit_hint": "dollars"
}
}Request schema
No body schema
Response schema
#/definitions/kalshi.orderBookResponseDoc
| Field | Type | Required | Enum | Bounds | Example | Description |
|---|---|---|---|---|---|---|
| code | integer | No | 200 | |||
| data | kalshi.OrderBookResponse | No | ||||
| data.fetched_at | string | No | 2026-06-07T14:00:00Z | Time the data was fetched, in UTC (RFC 3339). | ||
| data.no | array | No | Price levels on the No side of the book, highest price first. | |||
| data.no[].price | number | No | 0.08 | Price of the level, in US dollars per contract. | ||
| data.no[].size | number | No | 185.72 | Number of contracts resting at this price. | ||
| data.raw_unit_hint | string | No | dollars | Unit of the level prices, always `dollars`. | ||
| data.source_url | string | No | https://external-api.kalshi.com/trade-api/v2/markets/KXELONMARS-99/orderbook | URL the data was read from. | ||
| data.ticker | string | No | KXELONMARS-99 | Ticker of the Kalshi market the order book is for. | ||
| data.yes | array | No | Price levels on the Yes side of the book, highest price first. | |||
| data.yes[].price | number | No | 0.08 | Price of the level, in US dollars per contract. | ||
| data.yes[].size | number | No | 185.72 | Number of contracts resting at this price. | ||
| msg | string | No | OK |
| Status | Description | Schema |
|---|---|---|
| 400 | Bad Request | #/definitions/app.Response |
| 404 | Not Found | #/definitions/app.Response |
| 429 | Too Many Requests | #/definitions/app.Response |
| 500 | Internal Server Error | #/definitions/app.Response |
| 503 | Service Unavailable | #/definitions/app.Response |
Use environment variables for secrets and keep Crawlora API keys server-side.
curl -X GET "https://api.crawlora.net/api/v1/kalshi/market/KXELONMARS-99/orderbook" \
-H "x-api-key: $CRAWLORA_API_KEY"