# Assets

Assets represent the various types of currencies/digital assets that customers can hold in their accounts. When creating an [account](/guides/accounts), you have to specify a [Product](/guides/products) Type and Asset ID. The combination of these two determines how the account works and the features it supports.

We support 2 types of Assets today:

1. [Fiat Assets](#fiat-assets)
2. [Digital Assets](#digital-assets)


# Fiat Assets

Fiat money is a government-issued currency that is not backed by a physical commodity, such as gold or silver, but rather by the government that issued it. The value of fiat money is derived from the relationship between supply and demand and the stability of the issuing government, rather than the worth of a commodity backing it. Most modern paper currencies are fiat currencies, including the U.S. dollar, the Euro, and other major global currencies. To learn more, [click here](https://www.investopedia.com/terms/f/fiatmoney.asp).

## Supported Fiat Assets

Today, we only support USD for the various product types, with support for other Fiat assets coming soon. [Click here](/guides/products) to learn more about Product Types.

### Production

| Jurisdiction | Asset | Asset ID | Supported Payment Rails |
|  --- | --- | --- | --- |
| US | USD | `FIAT_MAINNET_USD` | `FEDWIRE` `ACH` `SWIFT` |
| EU | EUR | `FIAT_MAINNET_EUR` | `SEPA_CT` |
| GB | GBP | `FIAT_MAINNET_GBP` | `FPS` `CHAPS` |
| IN | INR | `FIAT_MAINNET_INR` | `IMPS` |
| MX | MXN | `FIAT_MAINNET_MXN` | `SPEI` |
| AE | AED | `FIAT_MAINNET_AED` | `UAEFTS` |
| HK | HKD (Coming soon) | `FIAT_MAINNET_HKD` | `COMING SOON` |
| SG | SGD (Coming soon) | `FIAT_MAINNET_SGD` | `COMING SOON` |
| CO | COP (Coming soon) | `FIAT_MAINNET_COP` | `COMING SOON` |
| AR | ARS (Coming soon) | `FIAT_MAINNET_ARS` | `COMING SOON` |
| BR | BRL (Coming soon) | `FIAT_MAINNET_BRL` | `COMING SOON` |


# Digital Assets

Digital Assets is a broad term that encompasses anything minted and exchanged on a blockchain, such as Stablecoins (e.g. USDC), Cryptocurrencies (e.g. Bitcoin), Central Bank Digital Currencies or CBDCs, Non-fungible Tokens or NFTs (e.g. Bored Ape).

## Supported Digital Assets

If there is a specific asset you are looking for, please feel free to contact us at [support@layer2financial.com](mailto:support@layer2financial.com) or [here](https://www.rail.io/contact-us/).

### Production

| Blockchain | Asset | Asset ID |
|  --- | --- | --- |
| Bitcoin | BTC | `BITCOIN_MAINNET_BTC` |
| Ethereum | ETH | `ETHEREUM_MAINNET_ETH` |
| Ethereum | USDC | `ETHEREUM_MAINNET_USDC` |
| Ethereum | USDT | `ETHEREUM_MAINNET_USDT` |
| Ethereum | RLUSD | `ETHEREUM_MAINNET_RLUSD` |
| Ethereum | EURC | `ETHEREUM_MAINNET_EURC` |
| Ethereum | DAI | `ETHEREUM_MAINNET_DAI` |
| XRP Ledger | XRP | `XRPL_MAINNET_XRP` |
| XRP Ledger | RLUSD | `XRPL_MAINNET_RLUSD` |
| Polygon | MATIC | `POLYGON_MAINNET_POL` |
| Polygon | USDC (Native) | `POLYGON_MAINNET_USDC` |
| Polygon | USDT (Bridged) | `POLYGON_MAINNET_USDT.e` |
| Solana | SOL | `SOLANA_MAINNET_SOL` |
| Solana | USDC | `SOLANA_MAINNET_USDC` |
| Solana | USDT | `SOLANA_MAINNET_USDT` |
| Tron | TRX | `TRON_MAINNET_TRX` |
| Tron | USDT | `TRON_MAINNET_USDT` |
| Near | NEAR | `NEAR_MAINNET_NEAR` |
| Near | USDC | `NEAR_MAINNET_USDC` |
| Near | USDT | `NEAR_MAINNET_USDT` |
| Binance Smart Chain (BSC) | BNB | `BSC_MAINNET_BNB` |
| Binance Smart Chain (BSC) | USDC (Bridged) | `BSC_MAINNET_USDC.b` |
| Binance Smart Chain (BSC) | USDT (Bridged) | `BSC_MAINNET_USDT.b` |


# Supported Exchange Pairs

Bitcoin
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| BTC-USD | BTC (Bitcoin) | `BITCOIN_MAINNET_BTC` | USD | `FIAT_MAINNET_USD` |


Ethereum
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| ETH-USD | ETH (Ethereum) | `ETHEREUM_MAINNET_ETH` | USD | `FIAT_MAINNET_USD` |
| USDC-USD | USDC (Ethereum) | `ETHEREUM_MAINNET_USDC` | USD | `FIAT_MAINNET_USD` |
| USDT-USD | USDT (Ethereum) | `ETHEREUM_MAINNET_USDT` | USD | `FIAT_MAINNET_USD` |
| RLUSD-USD | RLUSD (Ethereum) | `ETHEREUM_MAINNET_RLUSD` | USD | `FIAT_MAINNET_USD` |
| DAI-USD | DAI (Ethereum) | `ETHEREUM_MAINNET_DAI` | USD | `FIAT_MAINNET_USD` |
| USDC-EUR | USDC (Ethereum) | `ETHEREUM_MAINNET_USDC` | EUR | `FIAT_MAINNET_EUR` |
| USDT-EUR | USDT (Ethereum) | `ETHEREUM_MAINNET_USDT` | EUR | `FIAT_MAINNET_EUR` |
| USDC-GBP | USDC (Ethereum) | `ETHEREUM_MAINNET_USDC` | GBP | `FIAT_MAINNET_GBP` |
| USDT-GBP | USDT (Ethereum) | `ETHEREUM_MAINNET_USDT` | GBP | `FIAT_MAINNET_GBP` |
| EURC-USD | EURC (Ethereum) | `ETHEREUM_MAINNET_EURC` | USD | `FIAT_MAINNET_USD` |


Polygon
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| MATIC-USD | MATIC (Polygon) | `POLYGON_MAINNET_POL` | USD | `FIAT_MAINNET_USD` |
| USDC-USD | USDC (Polygon) (Native) | `POLYGON_MAINNET_USDC` | USD | `FIAT_MAINNET_USD` |
| USDC-EUR | USDC (Polygon) (Native) | `POLYGON_MAINNET_USDC` | USD | `FIAT_MAINNET_EUR` |
| USDC-GBP | USDC (Polygon) (Native) | `POLYGON_MAINNET_USDC` | USD | `FIAT_MAINNET_GBP` |
| USDC.e-USD | USDC (Polygon) (Bridged) | `POLYGON_MAINNET_USDC.e` | USD | `FIAT_MAINNET_USD` |
| USDC.e-EUR | USDC (Polygon) (Bridged) | `POLYGON_MAINNET_USDC.e` | USD | `FIAT_MAINNET_EUR` |
| USDC.e-GBP | USDC (Polygon) (Bridged) | `POLYGON_MAINNET_USDC.e` | USD | `FIAT_MAINNET_GBP` |
| USDT.e-USD | USDC (Polygon) (Bridged) | `POLYGON_MAINNET_USDT.e` | USD | `FIAT_MAINNET_USD` |
| USDT.e-EUR | USDC (Polygon) (Bridged) | `POLYGON_MAINNET_USDT.e` | USD | `FIAT_MAINNET_EUR` |
| USDT.e-GBP | USDC (Polygon) (Bridged) | `POLYGON_MAINNET_USDT.e` | USD | `FIAT_MAINNET_GBP` |


Tron
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| TRX-USD | TRX (Tron) | `TRON_MAINNET_TRX` | USD | `FIAT_MAINNET_USD` |
| USDT-USD | USDT (Tron) | `TRON_MAINNET_USDT` | USD | `FIAT_MAINNET_USD` |
| USDT-EUR | USDT (Tron) | `TRON_MAINNET_USDT` | EUR | `FIAT_MAINNET_EUR` |
| USDT-GBP | USDT (Tron) | `TRON_MAINNET_USDT` | GBP | `FIAT_MAINNET_GBP` |


Solana
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| SOL-USD | SOL (Solana) | `SOLANA_MAINNET_SOL` | USD | `FIAT_MAINNET_USD` |
| USDC-USD | USDC (Solana) | `SOLANA_MAINNET_USDC` | USD | `FIAT_MAINNET_USD` |
| USDC-EUR | USDC (Solana) | `SOLANA_MAINNET_USDC` | USD | `FIAT_MAINNET_EUR` |
| USDC-GBP | USDC (Solana) | `SOLANA_MAINNET_USDC` | USD | `FIAT_MAINNET_GBP` |
| USDT-USD | USDT (Solana) | `SOLANA_MAINNET_USDT` | USD | `FIAT_MAINNET_USD` |
| USDT-EUR | USDT (Solana) | `SOLANA_MAINNET_USDT` | USD | `FIAT_MAINNET_EUR` |
| USDT-GBP | USDT (Solana) | `SOLANA_MAINNET_USDT` | USD | `FIAT_MAINNET_GBP` |


Near
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| NEAR-USD | NEAR (Near) | `NEAR_MAINNET_NEAR` | USD | `FIAT_MAINNET_USD` |
| USDC-USD | USDC (Near) | `NEAR_MAINNET_USDC` | USD | `FIAT_MAINNET_USD` |
| USDT-USD | USDT (Near) | `NEAR_MAINNET_USDT` | USD | `FIAT_MAINNET_USD` |


Binance Smart Chain (BSC)
| Exchange Pair | Base Asset | Base Asset ID | Quote Asset | Quote Asset ID |
|  --- | --- | --- | --- | --- |
| BNB-USD | BNB (BSC) | `BSC_MAINNET_BNB` | USD | `FIAT_MAINNET_USD` |
| USDC.b-USD | USDC (BSC) | `BSC_MAINNET_USDC.b` | USD | `FIAT_MAINNET_USD` |
| USDT.b-USD | USDT (BSC) | `BSC_MAINNET_USDT.b` | USD | `FIAT_MAINNET_USD` |


# Sandbox Assets

## Fiat Assets

| Jurisdiction | Asset | Asset ID |
|  --- | --- | --- |
| US | USD | `FIAT_TESTNET_USD` |


## Digital Assets

| Blockchain | Asset | Asset ID |
|  --- | --- | --- |
| Bitcoin | BTC | `BITCOIN_TESTNET_BTC` |