# Feemarket

# Abstract

This document specifies the feemarket module which allows to define a global transaction fee for the network.

This module has been designed to support EIP1559 in cosmos-sdk.

The MempoolFeeDecorator in x/auth module needs to be overrided to check the baseFee along with the minimal-gas-prices allowing to implement a global fee mechanism which vary depending on the network activity.

For more reference to EIP1559:

https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1559.md (opens new window)

# Contents

  1. Concepts
  2. State
  3. Begin Block
  4. End Block
  5. Keeper
  6. Events
  7. Params
  8. Client
  9. Future Improvements