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

# Multi-currency support

> Trading in USD and NGN on Bayse

All market prices are quoted as probabilities (0.00 to 1.00), but amounts are in your chosen currency.

## Supported currencies

* **USD** — US Dollar (default).
* **NGN** — Nigerian Naira.

## Currency base multiplier

Each currency has a base multiplier that determines how probabilities convert to costs:

| Currency | Base multiplier | Price of 0.65 | Winning payout |
| -------- | --------------- | ------------- | -------------- |
| USD      | 1               | \$0.65/share  | \$1.00/share   |
| NGN      | 100             | ₦65.00/share  | ₦100.00/share  |

The cost per share is: `price × base multiplier`. Losing shares pay out **0.00**.

## Specifying currency

Add the `currency` query parameter to your requests:

```bash theme={null}
# Get events with prices in NGN
GET /v1/pm/events?currency=NGN

# Get a specific event in USD (default)
GET /v1/pm/events/evt_123?currency=USD

# Place an order in NGN
POST /v1/pm/events/evt_123/markets/mkt_456/orders
{
  "side": "BUY",
  "outcome": "YES",
  "amount": 10000,
  "currency": "NGN"
}
```

If you don't specify a currency, USD is used by default.

## Base multiplier vs. exchange rate

The base multiplier applies to **trading amounts** — share prices, order costs, and display values. It converts probabilities to currency-denominated costs (e.g., a price of 0.65 costs 65.00 NGN per share).

The following are converted from USD using the **live exchange rate**, not the base multiplier:

* [Liquidity reward](/market-makers/liquidity-rewards) and [maker rebate](/market-makers/maker-rebates) payouts
* Eligibility thresholds like `minNotionalOrderSize` and `minPayoutUsd` (evaluated in USD internally, then converted at the current rate)