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

# Currency pairs

> Choose which stablecoins and fiat currencies your business powers.

A **pair** is one stablecoin and one fiat currency, for example **USDC / GHS**. A pair works in both directions: onramp (GHS to USDC) and offramp (USDC to GHS).

You can only get quotes and create payments for pairs that are turned on for your business.

## Turn pairs on or off

**1. Open the integration settings**

Go to **Settings → Integration → Ramp pairs**.

**2. Choose your pairs**

Pick the stablecoins and fiat currencies you want to use. New fiat currencies appear here as they launch.

**3. Save**

Choose **Save pairs**. The change takes effect straight away.

To see which pairs exist, read [Supported currencies](https://docs.bridge.linkio.world/before-you-build/currencies.md).

> [!NOTE]
>
> Some pairs can't be turned on from the Bridge app. If you need one of them, contact support.

## If a pair is off

A quote or payment for a pair that isn't turned on fails with a `403` error:

```json theme={null}
{
  "error": {
    "type": "authorization_error",
    "code": "pair_not_enabled",
    "message": "The USDC/GHS pair is not enabled for this business. Contact support to enable it before creating onramp transactions.",
    "request_id": "req_3VnR7tY1wZ4cB6dE8fK2mQ9xLp",
    "status": 403
  }
}
```


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