# KyberNetworkProxy
{% 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 %}
## contract KyberNetworkProxy
is [IKyberNetworkProxy](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikybernetworkproxy.md), [ISimpleKyberProxy](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-isimplekyberproxy.md), WithdrawableNoModifiers, Utils5\ imports WithdrawableNoModifiers, Utils5, SafeERC20, [IKyberNetwork](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikybernetwork.md), [IKyberNetworkProxy](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikybernetworkproxy.md), [ISimpleKyberProxy](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-isimplekyberproxy.md), [IKyberHint](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberhint.md)
*Source*: [KyberNetworkProxy.sol](https://github.com/KyberNetwork/smart-contracts/blob/master/contracts/sol6/KyberNetworkProxy.sol)
***
### INDEX[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#index)
\
### REFERENCE[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#reference)
#### Events[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#events)
#### `KyberNetworkSet`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#kybernetworkset)
Event for logging the setting of the KyberNetwork contract address.
***
event **KyberNetworkSet**(IKyberNetwork newKyberNetwork, IKyberNetwork previousKyberNetwork) | Parameter | Type | Description | | --------- |:-----:|:-----------:| | `newKyberNetwork` | IKyberNetwork | new kyberNetwork contract address | | `previousKyberNetwork` | IKyberNetwork | old kyberNetwork contract address | Signature: 0x8936e1f096bf0a8c9df862b3d1d5b82774cad78116200175f00b5b7ba3010b02
\\
#### `KyberHintHandlerSet`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#kyberhinthandlerset)
Event for logging the setting of the KyberHintHandler contract address.
***
event **KyberHintHandlerSet**(IKyberHint kyberHintHandler) | Parameter | Type | Description | | --------- |:-----:|:-----------:| | `kyberHintHandler` | IKyberHint | kyberHintHandler contract address |
Signature: 0x6deb3a98fd141d661e9c0fb2d847541cc0c629cfb100c61011a76f57cb3b3a9b
\\
#### Functions[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#functions)
#### `trade`[](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kybernetworkproxy#trade)
Executes a Best-of-All trade (no reserve routing) between src and dest token and send dest tokens to destAddress; platform fee is ignored and is pre-Katalyst/backwards compatible.
***
function **trade**(IERC20 src, uint256 srcAmount, IERC20 dest, address payable destAddress, uint256 maxDestAmount, uint256 minConversionRate, address payable platformWallet) external payable override returns (uint256) | Parameter | Type | Description | | --------- |:-----:|:-----------:| | `src` | IERC20 | source ERC20 token contract address | | `srcAmount` | uint256 | source ERC20 token amount in its token decimals | | `dest` | IERC20 | destination ERC20 token contract address | | `destAddress` | address | recipient address for destination ERC20 token | | `maxDestAmount` | uint256 | limit on the amount of destination tokens | | `minConversionRate` | uint256 | minimum conversion rate; trade is canceled if actual rate is lower | | `platformWallet` | address | address receiving the platform fee | **Returns:**\ Amount of actual destination tokens in twei
\
\### \`tradeWithHint\` Executes a trade between src and dest token and send dest tokens to destAddress; platform fee is ignored and is pre-Katalyst/backwards compatible. \_\_\_ function \_\_tradeWithHint\_\_(ERC20 src, uint256 srcAmount, ERC20 dest, address payable destAddress, uint256 maxDestAmount, uint256 minConversionRate, address payable walletId, bytes hint) external payable override returns (uint256) | Parameter | Type | Description | | ------------------- |:-------:|:--------------------------------------------------------------------:| | \`src\` | ERC20 | source ERC20 token contract address | | \`srcAmount\` | uint256 | source ERC20 token amount in its token decimals | | \`dest\` | ERC20 | destination ERC20 token contract address | | \`destAddress\` | address | recipient address for destination ERC20 token | | \`maxDestAmount\` | uint256 | limit on the amount of destination tokens | | \`minConversionRate\` | uint256 | minimum conversion rate; trade is canceled if actual rate is lower | | \`walletId\` | address | deprecated | | \`hint\` | bytes | hint in bytes for reserve routing | \*\*Returns:\*\*\ Amount of actual destination tokens in twei\
\### \`tradeWithHintAndFee\` Executes a trade between src and dest token and send dest tokens to destAddress; includes the platform fee. \_\_\_ function \_\_tradeWithHintAndFee\_\_(IERC20 src, uint256 srcAmount, IERC20 dest, address payable destAddress, uint256 maxDestAmount, uint256 minConversionRate, address payable platformWallet, uint256 platformFeeBps, bytes hint) external payable override returns (uint256 destAmount) | Parameter | Type | Description | | --------- |:-----:|:-----------:| | \`src\` | IERC20 | source ERC20 token contract address | | \`srcAmount\` | uint256 | source ERC20 token amount in its token decimals | | \`dest\` | IERC20 | destination ERC20 token contract address | | \`destAddress\` | address | recipient address for destination ERC20 token | | \`maxDestAmount\` | uint256 | limit on the amount of destination tokens | | \`minConversionRate\` | uint256 | minimum conversion rate; trade is canceled if actual rate is lower | | \`platformWallet\` | address | address receiving the platform fee | | \`platformFeeBps\` | uint256 | platform fee in BPS to be used in this trade | | \`hint\` | bytes | hint in bytes for reserve routing | \*\*Returns:\*\*\ destAmount - Amount of actual destination tokens in twei\
\### \`swapTokenToToken\` Makes a simple ERC20 -> ERC20 token trade. \_\_\_ function \_\_swapTokenToToken\_\_(IERC20 src, uint256 srcAmount, IERC20 dest, uint256 minConversionRate) external override returns (uint256) | Parameter | Type | Description | | ------------------- |:-------:|:--------------------------------------------------------------------:| | \`src\` | IERC20 | source ERC20 token contract address | | \`srcAmount\` | uint256 | wei amount of source ERC20 token | | \`dest\` | IERC20 | destination ERC20 token contract address | | \`minConversionRate\` | uint256 | minimum conversion rate; trade is canceled if actual rate is lower | \*\*Returns:\*\*\ Amount of actual destination tokens in twei\
\### \`swapEtherToToken\` Execute a simple ETH -> ERC20 token trade. \_\_\_ function \_\_swapEtherToToken\_\_(IERC20 token, uint256 minConversionRate) external override returns (uint256) | Parameter | Type | Description | | ------------------- |:-------:|:--------------------------------------------------------------------:| | \`token\` | IERC20 | destination ERC20 token contract address | | \`minConversionRate\` | uint256 | minimum conversion rate; trade is canceled if actual rate is lower | \*\*Returns:\*\*\ Amount of actual destination tokens in twei\
\### \`swapTokenToEther\` Execute a simple ERC20 token -> ETH trade. \_\_\_ function \_\_swapTokenToEther\_\_(IERC20 token, uint256 srcAmount, uint256 minConversionRate) external override returns (uint256) | Parameter | Type | Description | | ------------------- |:-------:|:-------------------------------------------------------------------:| | \`token\` | IERC20 | destination ERC20 token contract address | | \`srcAmount\` | uint256 | source ERC20 token amount in its token decimals | | \`minConversionRate\` | uint256 | minimum conversion rate; trade is canceled if actual rate is lower | \*\*Returns:\*\*\ destAmount - Amount of actual destination ETH wei\
\### \`getExpectedRate\` Get the token conversion rate without platform fee; pre-Katalyst/backwards compatible. \_\_\_ function \_\_getExpectedRate\_\_(ERC20 src, ERC20 dest, uint256 srcQty) external view override returns (uint256 expectedRate, uint256 worstRate) | Parameter | Type | Description | | --------- |:-----:|:-----------:| | \`src\` | ERC20 | source ERC20 token contract address | | \`dest\` | ERC20 | destination ERC20 token contract address | | \`srcQty\` | uint256 | source ERC20 token amount in its token decimals | \*\*Returns:\*\*\ expectedRate - conversion rate of the src and dest tokens after deducting the network fee. worstRate - 97% rate of the conversion rate, allowaing a 3% buffer for use in minConversionRate in trade.\
\### \`getExpectedRateAfterFee\` Get the token conversion rate after processing the hint and includes the platform fee. \_\_\_ function \_\_getExpectedRateAfterFee\_\_(IERC20 src, IERC20 dest, uint256 srcQty, uint256 platformFeeBps, bytes hint) external view override returns (uint256 expectedRate) | Parameter | Type | Description | | --------- |:-----:|:-----------:| | \`src\` | IERC20 | source ERC20 token contract address | | \`dest\` | IERC20 | destination ERC20 token contract address | | \`srcQty\` | uint256 | source ERC20 token amount in its token decimals | | \`platformFeeBps\` | uint256 | platform fee in BPS | | \`hint\` | bytes | hint in bytes for reserve routing | \*\*Returns:\*\*\ expectedRate - conversion rate of the src and dest tokens after deducting the network and platform fee.\
\### \`maxGasPrice\` Get the maximum gas price limit. \_\_\_ function \_\_maxGasPrice\_\_() external view returns (uint256)\ \*\*Returns:\*\*\ The maximum gas price limit\
\### \`enabled\` Returns if the network is enabled or not. \_\_\_ function \_\_enabled\_\_() external view returns (bool)\ \*\*Returns:\*\*\ \`true\` if the network is enabled, \`false\` otherwise.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.kyberswap.com/reference/legacy/api-abi/core-smart-contracts/kybernetworkproxy.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.