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

# Currency Codes

> Currency and network pair codes used across all Noxpay API responses and dashboard.

## How currencies work in Noxpay

Each currency code in Noxpay represents a specific **currency and network pair** — not just a token. USDT on Tron and USDT on Ethereum are treated as entirely separate currencies. They have separate balances, separate deposit addresses, and cannot be used interchangeably.

This means:

* Balances are tracked per code. `TRX_USDT_S2UZ` and `USDT_ERC20` are two distinct balance buckets, even though both are USDT.
* You cannot move funds between two codes that share the same underlying token but differ in network. A balance of USDT (TRX) cannot fund an operation that expects USDT (ERC-20).
* When creating a transaction or reading a response, always use the exact code for the network you intend to operate on.

Choose the currency code based on the network your counterparty supports, and make sure your configuration (Templates, whitelist entries, withdrawal addresses) consistently uses the same code throughout.

***

## Supported currency codes

| Code            | Display name        | Network                          |
| --------------- | ------------------- | -------------------------------- |
| `TRX_USDT_S2UZ` | USDT (TRX)          | Tron (TRC-20)                    |
| `USDT_ERC20`    | USDT (ERC-20)       | Ethereum                         |
| `USDT2_AVAX`    | USDT (AVAX C-Chain) | Avalanche C-Chain                |
| `USDT_TON`      | USDT (TON)          | TON                              |
| `SOL_USDT_EWAY` | USDT (SOL)          | Solana                           |
| `USDC`          | USDC (ERC-20)       | Ethereum                         |
| `SOL_USDC_PTHX` | USDC (SOL)          | Solana                           |
| `USDC_AVAX`     | USDC (AVAX)         | Avalanche C-Chain                |
| `BRL`           | BRL (PIX)           | Brazilian instant payment system |
| `BTC`           | Bitcoin (Mainnet)   | Bitcoin                          |

***

## Where these codes appear

The code appears as-is in API responses under fields like `currency_exit_received_code`, `currency_entry_paid_code`, `currency_receive_code`, and `deposit_currency`. The corresponding display name appears in the `_pretty_name` or non-`_code` variant of the same field (e.g. `currency_exit_received`).

In the balance endpoint, the top-level keys of the `balances` object use the display name grouping (e.g. `USDT`), while the nested keys use the display name with network (e.g. `USDT TRC20`). Use the statement endpoint's `account.currency` field to get the raw code for filtering.