The Dynamic Fees module provides asset price management functionality that works in cooperation with the fee market module. It maintains a list of asset prices denominated in NTRN tokens to enable dynamic fee calculations and conversions.
Governance-Controlled Parameters: The Dynamic Fees module’s parameters (asset prices) can only be updated through governance proposals. Individual users cannot directly modify module settings.

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Key Features

  • Asset Price Management: Maintains a registry of asset prices denominated in NTRN tokens
  • Fee Market Integration: Works cooperatively with the fee market module to enable dynamic fee calculations
  • Price Conversion: Provides data source for converting gas prices from the fee market’s base denomination (untrn) into various assets
  • Governance Control: All price updates require governance approval to ensure network stability

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Module Functionality

The Dynamic Fees module operates through the following workflow:
  1. Price Registry: Maintains a list of asset prices (ntrn_prices) that represents the value of various tokens relative to NTRN
  2. Fee Market Cooperation: The fee market module uses these prices as a data source for dynamic fee calculations
  3. Price Conversion: Enables conversion of gas prices from the base denomination (untrn) into other supported assets
  4. Governance Updates: Price updates are managed through governance proposals to ensure community consensus

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Parameters

The module maintains the following parameters:

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NTRN Prices

message Params {
  // List of asset prices by the NTRN
  // it's used in cooperation with feemarket module
  // ntrn_prices is a data source to convert gas_price from feemarket's base_denom (untrn)
  // into a given asset
  repeated cosmos.base.v1beta1.DecCoin ntrn_prices = 1;
}
ParameterTypeDescription
ntrn_prices[]DecCoinList of asset prices denominated in NTRN tokens

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Integration with Fee Market

The Dynamic Fees module is designed to work alongside Neutron’s fee market implementation:
  • Base Denomination: The fee market uses untrn as its base denomination
  • Price Source: Dynamic Fees provides the price data needed for conversions
  • Multi-Asset Support: Enables fee payments in various supported assets
  • Dynamic Pricing: Supports real-time price adjustments through governance

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Use Cases

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For Network Operators

  • Fee Optimization: Enables more flexible fee structures
  • Multi-Asset Support: Allows users to pay fees in different tokens
  • Price Stability: Provides mechanism for maintaining stable fee costs

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For Users

  • Payment Flexibility: Option to pay fees in various supported assets
  • Predictable Costs: More stable fee calculations based on asset prices
  • Transparent Pricing: Clear price ratios for different assets

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For Governance

  • Price Control: Community control over asset price ratios
  • Network Tuning: Ability to adjust pricing for network optimization
  • Economic Policy: Implementation of tokenomics through price management
This module is essential for Neutron’s advanced fee market functionality, enabling sophisticated fee structures while maintaining community governance over critical pricing parameters.