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

# Pay currency List

> The tokens list of pay crypto currencies supported

### description

When creating an order, you can choose to specify the payment cryptocurrency name (tokens parameter) as needed. If the payment cryptocurrency selected by the payer is different from the order currency, the system will use the exchange rate provided by CoinMarketCap for real-time conversion. If tokens is not passed, all supported cryptocurrencies will be accepted by default for payment

#### Crypto currency

| cryptocurrency name | cryptocurrency symbol | blockchain   |
| ------------------- | --------------------- | ------------ |
| USDT-TRC20          | USDT                  | TRON         |
| USDT-ERC20          | USDT                  | Ethereum     |
| USDT-BEP20          | USDT                  | BSC          |
| USDT-Polygon        | USDT                  | Polygon      |
| USDT-Avalanche-C    | USDT                  | Avalanche-C  |
| USDT-Arbitrum One   | USDT                  | Arbitrum One |
| USDT-Solana         | USDT                  | Solana       |
| USDC-Base           | USDC                  | Base         |
| USDC-ERC20          | USDC                  | Ethereum     |
| USDC-Solana         | USDC                  | Solana       |
| USDC-BEP20          | USDC                  | BSC          |
| USDC-Polygon        | USDC                  | Polygon      |
| USDC-Avalanche-C    | USDC                  | Avalanche-C  |
| USDC-Arbitrum One   | USDC                  | Arbitrum One |
| USDC-Optimism       | USDC                  | Optimism     |
| Bitcoin             | BTC                   | Bitcoin      |
| Solana              | SOL                   | Solana       |
| Ethereum            | ETH                   | Ethereum     |
| Base                | ETH                   | Base         |
| Arbitrum One        | ETH                   | Arbitrum One |
| Optimism            | ETH                   | Optimism     |
| TRON                | TRX                   | TRON         |
| BNB-BSC             | BNB                   | BSC          |