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Blockchains (L2)

Boba Network

# Boba Network Average fees per user (AFPU) Methodology

## 1. Overview

Average Fees Per User (AFPU) measures the average amount of fees paid per daily active user on the Boba Network. This metric provides insight into the cost efficiency and usage intensity of the network by dividing total daily fees by the number of unique active users. The calculation uses transaction-level data to identify both fee amounts and user activity, providing a per-user economic metric that reflects network utilization patterns.

## 2. Data sources

- **Boba Network transaction records**: Raw blockchain transaction data including sender/receiver addresses, gas usage metrics, gas prices, and L1/L2 fee components
- **End-of-day token price feeds**: Daily closing prices for ETH to enable USD conversion of fee amounts
- **Token metadata**: Information about the native ETH token including standardized address and symbol representation

## 3. Step-by-step calculation

### Component A: Daily active user calculation
- **Purpose**: Count the number of unique users who initiated transactions each day
- **Logic**: Extract all transaction sender addresses from Boba Network transaction records. Truncate transaction timestamps to day boundaries and identify distinct `from_address` values per day. Use HyperLogLog algorithm for efficient distinct counting across multiple dimension breakdowns including project-level, chain-level, user-type-level, and product-level aggregations. Users are classified as "Transaction sender" type within the "blockchains_l2" market sector and "blockchain" business segment.
- **Key fields**: `block_timestamp` for daily aggregation, `from_address` as the user identifier, `transaction_hash` for transaction linking

### Component B: Daily fee calculation  
- **Purpose**: Calculate total gas fees paid across all transactions each day
- **Logic**: Process raw transaction data to extract gas usage metrics including L2 gas consumption, L1 gas consumption, gas prices, and L1 fee scalars. Calculate L2 gas fees using the formula: `gas_used` multiplied by `gas_price` divided by 1e18 (to convert from Wei to ETH). Calculate L1 gas fees using: `l1_gas_used` multiplied by `l1_gas_price` multiplied by `l1_fee_scalar` divided by 1e18. Sum both L1 and L2 components to get total transaction fees. Truncate timestamps to day boundaries and aggregate total fees per day. Convert ETH-denominated fees to USD using end-of-day price feeds.
- **Key fields**: `gas_used` and `gas_price` for L2 fees, `l1_gas_used`, `l1_gas_price`, and `l1_fee_scalar` for L1 fees, `token_address` for price conversion

### Final aggregation
- **Combining components**: The daily active user count and daily fee totals are combined using a division operation where total daily fees (in USD) is divided by the count of daily active users
- **Currency conversion**: All fee amounts are converted from ETH to USD using end-of-day token price feeds applied during the fee calculation phase
- **Time aggregation**: Both components use day-level timestamp truncation to ensure consistent daily boundaries for the division calculation
- **Final calculation**: Average Fees Per User equals total daily fees in USD divided by the number of distinct daily active users, with missing days filled with zero values to maintain complete time series coverage

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

Boba NetworkBOBA

Average fees per user (AFPU)

Average fees per user (AFPU)

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