# deBridge Liquidity Network (DLN) Fees Methodology

## 1. Overview

Fees for deBridge Liquidity Network (DLN) are measured as the total value paid by users to facilitate cross-chain transfers and swaps. Economic value generation is captured from both flat service fees and percentage-based protocol fees collected on the source chain. These fees are utilized to compensate the liquidity providers and infrastructure operators who facilitate the fulfillment and settlement of cross-chain orders.

## 2. Data sources

- **Blockchain events**: `CreatedOrder` events from `DlnSource` and `DlnSourceV1` contracts, covering Ethereum, Arbitrum, Avalanche, Base, and 4 other chains
- **External data**: End-of-day price feeds and asset metadata

## 3. Step-by-step calculation

### Component A: deBridge Liquidity Network (DLN) flat fee extraction

- **Purpose**: Capture the fixed service fee component of cross-chain orders
- **Logic**: `CreatedOrder` events are parsed from `DlnSource` and `DlnSourceV1` contracts. The flat fee amount is extracted from the `nativeFixFee` field. This fee is typically paid in the native gas asset of the source blockchain.
- **Key fields**: `nativeFixFee` (fee amount), `transaction_hash` (identification)

### Component B: deBridge Liquidity Network (DLN) percentage fee extraction

- **Purpose**: Capture the variable protocol fee based on transaction volume
- **Logic**: Variable fees are extracted from the `percentFee` field within `CreatedOrder` events. The specific asset address for this fee is identified from the `giveTokenAddress` field. This represents a percentage-based take from the specific asset being transferred by the user.
- **Key fields**: `percentFee` (fee amount), `giveTokenAddress` (asset identification)

### Component C: USD conversion and aggregation

- **Purpose**: Normalize fee values into a common currency for reporting
- **Logic**: Extracted fee amounts are normalized according to asset-specific decimal precision. Normalized values are multiplied by end-of-day price feeds to determine the USD value. All fee components are aggregated by day using UTC day 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

deBridge operates two main products: (1) deBridge Messaging - node operators validate cross-chain transactions for data and asset transfers, and (2) DLN (deBridge Liquidity Network) - an order book of cross-chain intents where Makers create intents in the source chain and Takers provide liquidity on the destination chain. Validators currently do not take a cut of transfer fees (supply-side fees).

deBridge is an interoperability protocol with two products: deBridge Messaging enables decentralized transfers of data and assets between blockchains, and DLN (deBridge Liquidity Network) is a cross-chain token bridge and trading infrastructure. deBridge was founded by Alex Smirnov and launched in 2021, with DLN launched in 2023.

The deBridge team and investors own and govern the protocol. They currently take all transfer fees paid by traders (revenue). deBridge's investors include ParaFi Capital, Animoca Brands, Huobi Ventures, Lemniscap, etc. All fees paid by traders are accumulated on smart contracts operated by the deBridge team and will be governed by deBridge token holders.

deBridge Liquidity Network (DLN)

Fees

Fees

Chain breakdown