# Hyperbridge App Fees Methodology

## 1. Overview

Fees measures the total value paid by users to facilitate cross-chain communication and message relaying through Hyperbridge App. These fees represent the economic value generated by the application through its relaying and messaging infrastructure. Fees are primarily denominated in DAI to ensure predictable tracking and are aggregated to reflect the total cost of utilization for end users.

## 2. Data sources

- **Blockchain events**: `AccumulateFees` events from `relayer` contracts and `FeePaid` events from `messagingFees` contracts, covering Hyperbridge
- **External data**: Asset metadata and end-of-day price feeds

## 3. Step-by-step calculation

### Component A: Relayer fee extraction

- **Purpose**: Capture the fees paid to relayers for processing cross-chain messages.
- **Logic**: `AccumulateFees` events are parsed from `relayer` contracts. The fee amount is extracted from the event parameters for all successful transactions. These values represent the compensation paid to the relayer network for maintaining cross-chain state proof delivery.
- **Key fields**: `event_data` (containing fee amounts), `extrinsic_hash` (transaction identification).

### Component B: Messaging fee extraction

- **Purpose**: Capture the protocol-level fees paid by users to initiate cross-chain interactions.
- **Logic**: `FeePaid` events are parsed from `messagingFees` contracts. Fee amounts are extracted from the event data for successful extrinsics. This component accounts for the base cost required to utilize the Hyperbridge App messaging layer.
- **Key fields**: `event_data` (containing fee amounts), `extrinsic_hash` (transaction identification).

### Component C: Aggregation and normalization

- **Purpose**: Combine fee components and normalize values into a standard currency.
- **Logic**: Relayer fees and messaging fees are combined at the transaction level. All raw amounts are normalized by decimal precision. Although fees are collected in DAI, values are verified against end-of-day price feeds to ensure accurate USD reporting. Data is aggregated to a daily granularity using UTC boundaries.

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Total value users pay to use a protocol (gross fees, user-paid fees).

Fees

Bridges

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Fees

Fees

Chain breakdown