# Supported Currencies & Networks

Bitnbox currently supports **USDT** and **USDC** for payments and payouts. Each currency is available on multiple blockchain networks and off-chain payment rails.

{% hint style="info" %}
Use the `currency` and `network` codes from this page when making API requests. Both fields are case-sensitive and must be passed in **lowercase**.
{% endhint %}

## USDT — Tether

API currency code: `usdt`

| Network                  | Type      | API code     | Explorer                                             |
| ------------------------ | --------- | ------------ | ---------------------------------------------------- |
| Ethereum (ERC-20)        | Mainnet   | `eth`        | [etherscan.io](http://etherscan.io/)                 |
| Tron (TRC-20)            | Mainnet   | `tron`       | [tronscan.org](http://tronscan.org/)                 |
| Polygon (MATIC)          | Mainnet   | `polygon`    | [polygonscan.com](http://polygonscan.com/)           |
| BNB Smart Chain (BEP-20) | Mainnet   | `bsc`        | [bscscan.com](http://bscscan.com/)                   |
| Binance Pay              | Off-chain | `binancepay` | —                                                    |
| KuCoin Pay               | Off-chain | `kucoinpay`  | —                                                    |
| Ethereum Sepolia         | Testnet   | `sepolia`    | [sepolia.etherscan.io](http://sepolia.etherscan.io/) |
| Polygon Amoy             | Testnet   | `amoy`       | [oklink.com/amoy](http://oklink.com/amoy)            |
| BNB Smart Chain Testnet  | Testnet   | `bsctestnet` | [testnet.bscscan.com](http://testnet.bscscan.com/)   |
| Tron Nile                | Testnet   | `nile`       | [nile.tronscan.org](http://nile.tronscan.org/)       |

## USDC — USD Coin

API currency code: `usdc`

| Network                  | Type      | API code     | Explorer                                             |
| ------------------------ | --------- | ------------ | ---------------------------------------------------- |
| Ethereum (ERC-20)        | Mainnet   | `eth`        | [etherscan.io](http://etherscan.io/)                 |
| Polygon (MATIC)          | Mainnet   | `polygon`    | [polygonscan.com](http://polygonscan.com/)           |
| BNB Smart Chain (BEP-20) | Mainnet   | `bsc`        | [bscscan.com](http://bscscan.com/)                   |
| Binance Pay              | Off-chain | `binancepay` | —                                                    |
| Ethereum Sepolia         | Testnet   | `sepolia`    | [sepolia.etherscan.io](http://sepolia.etherscan.io/) |
| Polygon Amoy             | Testnet   | `amoy`       | [oklink.com/amoy](http://oklink.com/amoy)            |
| BNB Smart Chain Testnet  | Testnet   | `bsctestnet` | [testnet.bscscan.com](http://testnet.bscscan.com/)   |

## Usage in API requests

```json
{
  "currency": "usdt",
  "network": "tron"
}
```

{% hint style="warning" %}
Currency and network must match. Sending USDT on the Ethereum network to an address generated for USDT on Tron will result in a failed or unrecoverable payment. See Edge Cases for recovery options.
{% endhint %}

## Off-chain vs on-chain

|                                  | On-chain           | Off-chain (Binance Pay / KuCoin Pay) |
| -------------------------------- | ------------------ | ------------------------------------ |
| Blockchain confirmation required | Yes                | No                                   |
| Address type                     | Wallet address     | Binance / KuCoin account ID          |
| Settlement speed                 | Depends on network | Instant                              |
| Explorer link                    | Available          | Not applicable                       |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.bitnbox.com/payments/supported-currencies-and-networks.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.