# Interfaces

- [IApproveAndCall](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iapproveandcall.md)
- [IImmutableState](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iimmutablestate.md)
- [IMixedRouteQuoterV1](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/imixedroutequoterv1.md)
- [IMulticallExtended](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/imulticallextended.md)
- [IOracleSlippage](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/ioracleslippage.md)
- [IPeripheryPaymentsExtended](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iperipherypaymentsextended.md)
- [IPeripheryPaymentsWithFeeExtended](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iperipherypaymentswithfeeextended.md)
- [IQuoter](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iquoter.md)
- [IQuoterV2](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iquoterv2.md)
- [ISwapRouter02](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iswaprouter02.md)
- [ITokenValidator](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/itokenvalidator.md)
- [IV1SwapRouter](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iv1swaprouter.md)
- [IV2SwapRouter](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/interfaces/iv2swaprouter.md)