A 1% protocol rate applies to every bonding-curve buy and sell on BNB Chain, Robinhood, X Layer and Monad (2.5% on Morph). Tax tokens pay an additional protocol rate of up to 0.3% of trade volume, on top of the creator's 1%, 3%, 5% or 10% tax.

Flap is a token launchpad on Robinhood Chain, BNB Chain, X Layer, Monad and Morph.

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Flap

# Flap Fees Methodology

## 1. Overview

Fees measures the total value paid by users to interact with Flap. This includes both protocol revenue collected by the fee Safe and supply-side fees distributed to asset creators and holders. The overall economic activity and value generation of the Flap platform across its supported networks are represented by this metric.

## 2. Data sources

- **Blockchain events**: `TokenQuoteSet` events from `Portal` contracts, `FlapTaxProcessorDispatchExecuted` events from `TaxProcessor` contracts, native asset transfers, and ERC-20 token transfers, covering BNB Chain, X Layer, Monad, and Robinhood Chain
- **External data**: End-of-day price feeds and asset metadata

## 3. Step-by-step calculation

### Component A: Supply-side fee extraction

- **Purpose**: Capture fees distributed to asset creators and holders.
- **Logic**: `FlapTaxProcessorDispatchExecuted` events from `TaxProcessor` contracts are parsed on BNB Chain, X Layer, and Robinhood Chain. For each event, the supply-side amount is calculated by summing the `marketAmount` and `dividendAmount` fields. The quote asset for the tax asset is identified using the latest `TokenQuoteSet` events from `Portal` contracts. If no quote asset is found or if it is set to the zero address, the wrapped native asset address is used as the asset address.
- **Key fields**: `marketAmount`, `dividendAmount`, `taxToken`, `quoteToken`

### Component B: Protocol revenue extraction

- **Purpose**: Capture fees collected by the protocol fee Safe.
- **Logic**: Inflows to designated fee Safe addresses are tracked on BNB Chain, X Layer, Monad, and Robinhood Chain. Native asset transfers (recorded as the wrapped native asset) and ERC-20 token transfers are captured. Asset transfers are filtered to only include assets that have been configured as quote assets in `TokenQuoteSet` events or the wrapped native asset.
- **Key fields**: `value`, `amount`, `to_address`, `quoteToken`

### Component C: Normalization and USD conversion

- **Purpose**: Convert raw fee and revenue amounts to USD.
- **Logic**: Raw supply-side fee amounts and protocol revenue amounts are aggregated daily by chain and asset. These amounts are normalized by decimal precision using asset metadata and multiplied by end-of-day asset prices to determine the USD value.
- **Key fields**: `timestamp`, `chain_id`, `token_address`, `price_usd`

### Component D: Total fees aggregation

- **Purpose**: Combine supply-side fees and protocol revenue into the final fees metric.
- **Logic**: The USD-denominated daily supply-side fees and protocol revenue are summed to calculate the total fees generated by the project.
- **Key fields**: `fees_supply_side`, `revenue`

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

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

Flap

Fees

Fees

Competitive landscape

Chain breakdown