# Kalshi on Onekey

> 4 endpoints for Kalshi (0 stable, 4 beta), 1 to 5 credits each. Category: Finance & markets. One key, one JSON shape.

Base URL: https://api.onekey.dev
Auth: header `x-api-key: <key>`. Call shape: `GET /v1/{platform}/{endpoint}?{params}`.
Every response is `{success, data, metadata, error}`; check `success` first. Cost is in `metadata.credits_charged`. Free when served from cache (0.2 credit for a cached response over 100 KB). Failed and not-found calls are refunded.
Status: stable = verified against the live source; beta = not yet verified, fields may be missing.

Page: https://onekey.dev/platforms/kalshi
Reference (Markdown): https://onekey.dev/docs/api/kalshi.md
All docs: https://onekey.dev/llms.txt

## Canonical fields returned

Unified-schema fields (same names on every platform), with how many of the 4 mapped Kalshi endpoints return each:

- `entity.category` (string): 3
- `entity.description` (string): 3
- `entity.id` (string): 3
- `entity.name` (string): 3
- `entity.date` (ISO 8601 date): 2
- `market.openInterest` (number): 2
- `market.price` (number): 2
- `market.volume` (number): 2
- `market.volume24h` (number): 2
- plus 6 platform-specific fields under `ext.`

## Endpoints

### kalshi.events

Open Kalshi events.
- Price: 5 credits per fresh call. Status: beta. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/kalshi/events?limit=5` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `limit` (string, optional, default 20): Rows (1-100)
- Fields returned: `entity.id`, `entity.name`, `entity.description`, `entity.category`, `ext.seriesTicker`
- Reference: https://onekey.dev/docs/api/kalshi/events.md

### kalshi.exchange_status

Kalshi exchange and trading status.
- Price: 1 credit per fresh call. Status: beta. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/kalshi/exchange_status` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `ext.exchangeActive`, `ext.tradingActive`
- Reference: https://onekey.dev/docs/api/kalshi/exchange_status.md

### kalshi.market

One Kalshi market by ticker.
- Price: 1 credit per fresh call. Status: beta. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/kalshi/market?ticker=KXHIGHNY-26SEP29-T80` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `ticker` (string, required): Market ticker
- Fields returned: `entity.id`, `entity.name`, `entity.description`, `entity.category`, `market.price`, `market.volume`, `market.volume24h`, `market.openInterest`, `entity.date`, `ext.eventTicker`, `ext.yesBid`, `ext.yesAsk`
- Reference: https://onekey.dev/docs/api/kalshi/market.md

### kalshi.markets

Open Kalshi prediction markets.
- Price: 5 credits per fresh call. Status: beta. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/kalshi/markets?limit=5` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `limit` (string, optional, default 20): Rows (1-100)
- Fields returned: `entity.id`, `entity.name`, `entity.description`, `entity.category`, `market.price`, `market.volume`, `market.volume24h`, `market.openInterest`, `entity.date`, `ext.eventTicker`, `ext.yesBid`, `ext.yesAsk`
- Reference: https://onekey.dev/docs/api/kalshi/markets.md

## Sample request

```bash
curl "https://api.onekey.dev/v1/kalshi/exchange_status" \
  -H "x-api-key: YOUR_API_KEY"
```