Kalshi API endpoint
Returns order books for up to 25 Kalshi markets in one call. `tickers` is required, as a comma-separated list or repeated values. Each book has the `yes` and `no` bid levels with `price` and `size`; ask levels are not listed. Books come back in the order requested.
/kalshi/markets/orderbooksPath parameters: none.
Query parameters:
tickers: required comma-separated Kalshi market tickers. Repeated query values are also accepted. Maximum 25 tickers.Notable response behavior:
| Parameter | Type | Required | Default | Description | Example |
|---|---|---|---|---|---|
| tickers | string | Yes | Comma-separated Kalshi market tickers. Repeated query values are also accepted. | KXELONMARS-99,KXNEWPOPE-70 | |
| x-api-key (header) | string | Yes | API key required |
curl -X GET "https://api.crawlora.net/api/v1/kalshi/markets/orderbooks?tickers=KXELONMARS-99%2CKXNEWPOPE-70" \ -H "x-api-key: $CRAWLORA_API_KEY"
{
"code": 200,
"msg": "OK",
"data": {
"tickers": [
"KXELONMARS-99",
"KXNEWPOPE-70"
],
"books": [
{
"ticker": "KXELONMARS-99",
"yes": [
{
"price": 0.08,
"size": 185.72
}
],
"no": [],
"raw_unit_hint": "dollars"
}
]
}
}Request schema
No body schema
Response schema
#/definitions/kalshi.batchOrderBookResponseDoc
| Field | Type | Required | Enum | Bounds | Example | Description |
|---|---|---|---|---|---|---|
| code | integer | No | 200 | |||
| data | kalshi.BatchOrderBookResponse | No | ||||
| data.books | array | No | Order book for each requested market. | |||
| data.books[].fetched_at | string | No | 2026-06-07T14:00:00Z | Time the data was fetched, in UTC (RFC 3339). | ||
| data.books[].no | array | No | Price levels on the No side of the book, highest price first. | |||
| data.books[].no[].price | number | No | 0.08 | Price of the level, in US dollars per contract. | ||
| data.books[].no[].size | number | No | 185.72 | Number of contracts resting at this price. | ||
| data.books[].raw_unit_hint | string | No | dollars | Unit of the level prices, always `dollars`. | ||
| data.books[].source_url | string | No | https://external-api.kalshi.com/trade-api/v2/markets/KXELONMARS-99/orderbook | URL the data was read from. | ||
| data.books[].ticker | string | No | KXELONMARS-99 | Ticker of the Kalshi market the order book is for. | ||
| data.books[].yes | array | No | Price levels on the Yes side of the book, highest price first. | |||
| data.books[].yes[].price | number | No | 0.08 | Price of the level, in US dollars per contract. | ||
| data.books[].yes[].size | number | No | 185.72 | Number of contracts resting at this price. | ||
| data.fetched_at | string | No | 2026-06-07T14:00:00Z | Time the data was fetched, in UTC (RFC 3339). | ||
| data.source_url | string | No | https://external-api.kalshi.com/trade-api/v2/markets/orderbooks | URL the data was read from. | ||
| data.tickers | array | No | KXELONMARS-99 | Tickers of the Kalshi markets that were requested. | ||
| 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/markets/orderbooks?tickers=KXELONMARS-99%2CKXNEWPOPE-70" \
-H "x-api-key: $CRAWLORA_API_KEY"