> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ostium.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Discover Pairs

> Use getPairs to discover available Ostium markets, prices, leverage limits, and market state.

Use `getPairs()` to fetch the market catalog.

```ts theme={null}
const { pairs } = await client.getPairs();

for (const pair of pairs) {
  console.log(
    pair.pairId,
    `${pair.pairFrom}/${pair.pairTo}`,
    pair.maxLeverage,
    pair.overnightMaxLeverage,
    pair.midPx,
    pair.isMarketOpen,
  );
}
```

## Why it matters

* `pairId` is used across reads and management flows
* `pairId` for `openTrade()` is sourced from this list
* leverage and overnight limits determine whether `isDayTrade` is needed