> For the complete documentation index, see [llms.txt](https://docs.asterizm.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.asterizm.io/infrastructure/asterizm-interfaces/iasterizmconfigenv.md).

# IAsterizmConfigEnv

The `IAsterizmConfigEnv` interface defines a data structure for configuration settings related to relays and fees.

{% embed url="<https://github.com/Asterizm-Protocol/asterizm-contracts-evm/blob/master/contracts/interfaces/IAsterizmConfigEnv.sol>" %}

### Structs

#### ConfigDataResponseDto

Represents configuration data regarding relay and system fees.

**Fields:** `externalRelayExists`, `externalRelayFee`, `systemFee`