> ## Documentation Index
> Fetch the complete documentation index at: https://sequence-0fb8d9e6-codex-update-discord-invite.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
# Unreal Currency Swaps
> Documentation for Unreal SDK overview for the Sequence infrastructure stack for web3 gaming.
Swapping between different ERC20/native token currencies on a given Chain is made easy by Sequence's Smart Swap API.
Please make sure that your token pair has enough liquidity on a supported exchange such as UniSwap.
Checkout this guide on [how to add liquidity on UniSwap.](https://support.uniswap.org/hc/en-us/articles/7423194619661-How-to-add-liquidity-to-Uniswap-v3)
## Get Swap Price
Query the swap price for a given token pair.
```cpp theme={null}
const TSuccessCallback OnApiSuccess = [this, OnSuccess](const FSeqSwapPrice& Response) { };
const FFailureCallback OnApiFailure = [this, OnFailure](const FSequenceError& Error) { };
USequencePay* Pay = NewObject();
Pay->GetSwapPrice(SequenceSdk::GetChainId(), WalletAddress, SellCurrency, BuyCurrency, BuyAmount, OnApiSuccess, OnApiFailure);
```
## Get Swap Prices
Query swap prices for the token your user wants to receive.
```cpp theme={null}
const TSuccessCallback> OnApiSuccess = [this, OnSuccess](const TArray& Response) { };
const FFailureCallback OnApiFailure = [this, OnFailure](const FSequenceError& Error) { };
USequencePay* Pay = NewObject();
Pay->GetSwapPrices(SequenceSdk::GetChainId(), WalletAddress, BuyCurrency, BuyAmount, OnApiSuccess, OnApiFailure);
```
## Get Swap Quote
After checking the swap price, get your approval and transaction data needed to build your transaction.
Make sure you only define `Sell Amount` or `Buy Amount` and not both.
```cpp theme={null}
const TSuccessCallback OnApiSuccess = [this, OnSuccess](const FSeqSwapQuote& Response) { };
const FFailureCallback OnApiFailure = [this, OnFailure](const FSequenceError& Error) { };
USequencePay* Pay = NewObject();
Pay->GetSwapQuote(SequenceSdk::GetChainId(), WalletAddress, BuyCurrency, SellCurrency, BuyAmount, SellAmount, IncludeApprove, OnApiSuccess, OnApiFailure);
```
## Get Supported Swap Chains
Returns the list of chains supported for swapping.
```cpp theme={null}
const TSuccessCallback OnApiSuccess = [this, OnSuccess](const FSeqGetLifiChainsResponse& Response) { };
const FFailureCallback OnApiFailure = [this, OnFailure](const FSequenceError& Error) { };
USequencePay* Pay = NewObject();
Pay->GetSupportedSwapChains(OnApiSuccess, OnApiFailure);
```
## Get Supported Swap Tokens
Returns the list of tokens supported for swapping.
```cpp theme={null}
const TSuccessCallback OnApiSuccess = [this, OnSuccess](const FSeqGetLifiTokensResponse& Response) { };
const FFailureCallback OnApiFailure = [this, OnFailure](const FSequenceError& Error) { };
USequencePay* Pay = NewObject();
Pay->GetSupportedSwapTokens(Args, OnApiSuccess, OnApiFailure);
```