As described in the section Governance -> Global Variables, Mangrove governance can configure Mangrove to use a separate Monitor Contract as a gas price and density oracle.
The MgvOracle
contract is a simple contract that implements the Monitor interface and can be deployed by Mangrove governance to serve as a Monitor Contract. It serves as a bridge to an off-chain oracle for gas price and density. When deployed, this contract is configured with the address of a specified permissioned sender that is allowed to call the external functions to update the values for gas price and density that the oracle reports to Mangrove.
A method is also provided for governance to change the permissioned sender.
The is available.