> For the complete documentation index, see [llms.txt](https://fluxion-network.gitbook.io/fluxion-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fluxion-network.gitbook.io/fluxion-network/developer-resources/technical-overview-and-api/amm-v3-quoterv2.md).

# amm v3 quoterv2

## Overview

Quote helper address supplied for the AMM V3 deployment.

* Contract name: `QuoterV2`
* Address: `0x3E4eE18Ac7280813236a1EB850679Da5322E14CE`
* Network: Mantle Mainnet (`chainId 5000`)
* Explorer: [`Mantle Explorer`](https://explorer.mantle.xyz/address/0x3E4eE18Ac7280813236a1EB850679Da5322E14CE)
* Explorer API: [`address payload`](https://explorer.mantle.xyz/api/v2/addresses/0x3E4eE18Ac7280813236a1EB850679Da5322E14CE)
* [`Mantlescan code page`](https://mantlescan.xyz/address/0x3E4eE18Ac7280813236a1EB850679Da5322E14CE#code)
* [`QuoterV2.sol`](https://github.com/Uniswap/v3-periphery/blob/main/contracts/lens/QuoterV2.sol)

## Read Functions

These methods are quote-style entrypoints. In the matched source they are not marked `view`, because the contract simulates swaps and decodes revert payloads, but they are intended for off-chain quoting rather than persistent state updates.

### `factory`

```solidity
function factory() external view returns (address factory)
```

Returns the factory address used for pool lookups during quote simulation.

This function does not take parameters.

Return Values

| Name      | Type      | Description                         |
| --------- | --------- | ----------------------------------- |
| `factory` | `address` | Factory address used by the quoter. |

### `WETH9`

```solidity
function WETH9() external view returns (address weth9)
```

Returns the wrapped native token address configured for the quoter.

This function does not take parameters.

Return Values

| Name    | Type      | Description                   |
| ------- | --------- | ----------------------------- |
| `weth9` | `address` | Wrapped native token address. |

### `quoteExactInput`

```solidity
function quoteExactInput(bytes path, uint256 amountIn) external returns (uint256 amountOut, uint160[] sqrtPriceX96AfterList, uint32[] initializedTicksCrossedList, uint256 gasEstimate)
```

Simulates an exact-input swap across a multi-hop path without executing it.

Parameters

| Name       | Type      | Description                                         |
| ---------- | --------- | --------------------------------------------------- |
| `path`     | `bytes`   | Encoded token and fee path for the simulated route. |
| `amountIn` | `uint256` | Input amount to simulate.                           |

Return Values

| Name                          | Type        | Description                                   |
| ----------------------------- | ----------- | --------------------------------------------- |
| `amountOut`                   | `uint256`   | Quoted output amount.                         |
| `sqrtPriceX96AfterList`       | `uint160[]` | Per-pool post-swap square-root prices.        |
| `initializedTicksCrossedList` | `uint32[]`  | Per-pool counts of initialized ticks crossed. |
| `gasEstimate`                 | `uint256`   | Estimated gas consumed by the simulated swap. |

### `quoteExactInputSingle`

```solidity
function quoteExactInputSingle((address tokenIn, address tokenOut, uint256 amountIn, uint24 fee, uint160 sqrtPriceLimitX96) params) external returns (uint256 amountOut, uint160 sqrtPriceX96After, uint32 initializedTicksCrossed, uint256 gasEstimate)
```

Simulates an exact-input swap against a single pool.

Parameters

| Name                       | Type      | Description                              |
| -------------------------- | --------- | ---------------------------------------- |
| `params.tokenIn`           | `address` | Input token address.                     |
| `params.tokenOut`          | `address` | Output token address.                    |
| `params.amountIn`          | `uint256` | Input amount to simulate.                |
| `params.fee`               | `uint24`  | Fee tier of the pool.                    |
| `params.sqrtPriceLimitX96` | `uint160` | Optional price limit for the simulation. |

Return Values

| Name                      | Type      | Description                                      |
| ------------------------- | --------- | ------------------------------------------------ |
| `amountOut`               | `uint256` | Quoted output amount.                            |
| `sqrtPriceX96After`       | `uint160` | Pool square-root price after the simulated swap. |
| `initializedTicksCrossed` | `uint32`  | Initialized ticks crossed during the simulation. |
| `gasEstimate`             | `uint256` | Estimated gas consumed by the simulated swap.    |

### `quoteExactOutput`

```solidity
function quoteExactOutput(bytes path, uint256 amountOut) external returns (uint256 amountIn, uint160[] sqrtPriceX96AfterList, uint32[] initializedTicksCrossedList, uint256 gasEstimate)
```

Simulates the input amount required to receive an exact output amount across a multi-hop route.

Parameters

| Name        | Type      | Description                                  |
| ----------- | --------- | -------------------------------------------- |
| `path`      | `bytes`   | Encoded token and fee path in reverse order. |
| `amountOut` | `uint256` | Output amount to target.                     |

Return Values

| Name                          | Type        | Description                                   |
| ----------------------------- | ----------- | --------------------------------------------- |
| `amountIn`                    | `uint256`   | Quoted input amount required.                 |
| `sqrtPriceX96AfterList`       | `uint160[]` | Per-pool post-swap square-root prices.        |
| `initializedTicksCrossedList` | `uint32[]`  | Per-pool counts of initialized ticks crossed. |
| `gasEstimate`                 | `uint256`   | Estimated gas consumed by the simulated swap. |

### `quoteExactOutputSingle`

```solidity
function quoteExactOutputSingle((address tokenIn, address tokenOut, uint256 amount, uint24 fee, uint160 sqrtPriceLimitX96) params) external returns (uint256 amountIn, uint160 sqrtPriceX96After, uint32 initializedTicksCrossed, uint256 gasEstimate)
```

Simulates the input amount required to receive an exact output amount from a single pool.

Parameters

| Name                       | Type      | Description                              |
| -------------------------- | --------- | ---------------------------------------- |
| `params.tokenIn`           | `address` | Input token address.                     |
| `params.tokenOut`          | `address` | Output token address.                    |
| `params.amount`            | `uint256` | Target output amount.                    |
| `params.fee`               | `uint24`  | Fee tier of the pool.                    |
| `params.sqrtPriceLimitX96` | `uint160` | Optional price limit for the simulation. |

Return Values

| Name                      | Type      | Description                                      |
| ------------------------- | --------- | ------------------------------------------------ |
| `amountIn`                | `uint256` | Quoted input amount required.                    |
| `sqrtPriceX96After`       | `uint160` | Pool square-root price after the simulated swap. |
| `initializedTicksCrossed` | `uint32`  | Initialized ticks crossed during the simulation. |
| `gasEstimate`             | `uint256` | Estimated gas consumed by the simulated swap.    |

## Write Functions

No end-user state-changing entrypoints are documented for this quoter. The matched source also exposes `uniswapV3SwapCallback(...)`, but that callback is protocol plumbing rather than part of the normal quote API surface.

No write-oriented functions are documented for this contract.