> For the complete documentation index, see [llms.txt](https://docs.kyberswap.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kyberswap.com/reference/legacy/api-abi/core-smart-contracts/ikyberfeehandler.md).
# IKyberFeeHandler
{% hint style="warning" %}
You are referring to the **`Legacy`** version of KyberSwap docs.
For the most updated information, please refer to:
* [**`Classic`**](https://github.com/KyberNetwork/kyberswap-documentation/blob/main/reference/legacy/api-abi/core-smart-contracts/broken-reference/README.md)
* [**`Elastic`**](/reference/legacy/kyberswap-elastic.md)
* [**`Limit Order`**](/kyberswap-solutions/limit-order.md)
* [**`Aggregator`**](/kyberswap-solutions/kyberswap-aggregator.md)
{% endhint %}
## interface IKyberFeeHandler
*Source*: [IKyberFeeHandler.sol](https://github.com/KyberNetwork/smart-contracts/blob/master/contracts/sol6/IKyberFeeHandler.sol)
***
### INDEX[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#index)
\
### REFERENCE[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#reference)
#### Events[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#events)
#### `RewardPaid`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#rewardpaid)
Event for logging the rewards paid.
***
event **RewardPaid**(address indexed staker, uint256 indexed epoch, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | --------- |:-------:|:-------------------------:| | `staker` | address | staker's address | | `epoch` | uint256 | epoch number | | `token` | address | ERC20 token address | | `amount` | uint256 | ERC20 token amount in wei | Signature: `0xaf206e736916d38b56e2d559931a189bc3119b8fc6d6850bd34e382f09030587`
\\
#### `RebatePaid`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#rebatepaid)
Event for logging the rebates paid.
***
event **RebatePaid**(address indexed rebateWallet, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | -------------- |:-------:|:----------------------------:| | `rebateWallet` | address | address receiving the rebate | | `token` | address | ERC20 token address | | `amount` | uint256 | ERC20 token amount in wei | Signature: `0xb5ec5e03662403108373ab6431d3e834cb1011fca164541aef315fc7dea7b3b6`
\\
#### `PlatformFeePaid`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#platformfeepaid)
Event for logging the platform fees paid.
***
event **PlatformFeePaid**(address indexed platformWallet, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | ---------------- |:-------:|:----------------------------------:| | `platformWallet` | address | address receiving the platform fee | | `token` | address | ERC20 token address | | `amount` | uint256 | ERC20 token amount in wei | Signature: `0xebe3db09f5650582b4782506e0d272262129183570e55fcf8768dd6e91f8c0f6`
\\
#### `KncBurned`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#kncburned)
Event for logging the amount of KNC burned.
***
event **KncBurned**(uint256 kncTWei, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | --------- |:-------:|:----------------------------------:| | `kncTwei` | address | address receiving the platform fee | | `token` | address | ERC20 quote token address | | `amount` | uint256 | ERC20 quote token amount in wei | Signature: `0xa0fcef56e2b45fcbeb91d5e629ef6b2b6e982d0768f02d1232610315cd23ea10`
\\
#### Functions[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#functions)
#### `handleFees`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#handlefees)
Handles the fees when a trade happens in the network, unless the trade is not involving any fees.
***
function **handleFees**(contract IERC20 token, address\[] eligibleWallets, uint256\[] rebatePercentages, address platformWallet, uint256 platformFee, uint256 networkFee) external payable | Parameter | Type | Description | | ------------------- |:---------:|:----------------------------------------------------:| | `token` | address | ERC20 quote token address | | `eligibleWallets` | address\[] | array of eligible wallet addresses | | `rebatePercentages` | uint256\[] | array of rebate percentages to rebate wallets | | `platformWallet` | address | wallet address receiving the platform fee | | `platformFee` | uin256 | fee amount in wei the platfrom wallet is entitled to | | `networkFee` | uin256 | fee amount in wei to be allocated for BRR |\\
#### `claimReserveRebate`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#claimreserverebate)
Claim the rebates for the rebate wallet from KyberFeeHandler.
***
function **claimReserveRebate**(address rebateWallet) external returns (uint256) | Parameter | Type | Description | | -------------- |:-------:|:----------------------------:| | `rebateWallet` | address | address receiving the rebate | **Returns:**\ The rebate amount claimed in wei.\\
#### `claimPlatformFee`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#claimplatformfee)
Claim the platform fees for the platform wallet from KyberFeeHandler.
***
function **claimPlatformFee**(address platformWallet) external returns (uint256) | Parameter | Type | Description | | ---------------- |:-------:|:----------------------------------:| | `platformWallet` | address | address receiving the platform fee | **Returns:**\ The platform fee amount claimed in wei.\\
#### `claimStakerReward`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#claimstakerreward)
Claim the staking rewards from KyberFeeHandler.
***
function **claimStakerReward**(address staker, uint256 epoch) external returns (uint256 amount) | Parameter | Type | Description | | --------- |:-------:|:---------------------------------------------:| | `staker` | address | staker's address | | `epoch` | uin256 | which epoch is the staker claiming the reward | **Returns:**\ The staking reward amount claimed in wei.\\
[PreviousKyberHintHandler](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kyberhinthandler)[
](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberstaking)
---
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