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

# FAQ

> Common implementation questions for Rails.

## What is Rails?

Rails is a Sui-native settlement infrastructure for stablecoin-to-fiat conversion in emerging markets.

## Does Rails support EVM?

Yes. EVM integration is supported, but settlement is executed on Sui.

## What assets are supported?

Native SUI, USDC, and USDT.

## What currencies are supported?

NGN, KES, UGX, TZS, MWK, and BRL.

## Is Rails custodial?

No. Rails is built around settlement orchestration and on-chain escrow, not long-term custody of user funds.