课题创意一：Gas 费优化器 / 交易打包服务 (The Smart Bundler)核心概念： AI Agent 为其他 Agent 或用户提供“最优交易路径计算”，并以此收费。场景： 用户想在 Base 链上把 ETH 换成 USDC，但不知道现在的最优路径和 Gas 设置。交互流程：询问 (Request)： 用户的钱包/Agent 向你的服务端发送请求：“我要把 1 ETH 换成 USDC，给我构建一个最省钱的 Transaction Data。”报价 (402)： 你的 AI 分析当前 Mempool（内存池）状态，返回 402 Payment Required，索要 0.5 USDC 的咨询费。支付 (Pay)： 用户的 Agent 支付 0.5 USDC交付 (Delivery)： 你的服务验证支付后，返回一段十六进制的 Calldata。用户只需广播这段数据，就能以比市面更低滑点成交。链上价值： 将“链下计算（AI 寻找最优路径）”与“链上执行”完美解耦，AI 通过 X402 变现其计算能力需求拆分前端：有一个输入框接收promat，弹出支付按钮【支付咨询费】，之后自动进行兑换，JS脚本调用ChatGPt给出最优gas路径，以及滑点设置，以JSON输出，返回最终支付结果合约：1.兑换函数swap【将AI返回的原代币兑换为目标代币】 2.接收咨询费函数paymentConsultationFee{ "ok": true, "error": null, "data": { "chain_id": 8453, "input_token": "ETH", "output_token": "USDC", "amount_in": "1000000000000000000", "amount_out_min": "2920500000", "slippage_bps": 100, "route": [ { "protocol": "uniswap-v3", "pool_address": "0xPoolAddress1", "fee_tier": 500, "portion_bps": 6000, "token_in": "ETH", "token_out": "USDbC", "amount_in": "600000000000000000", "amount_out": "1770000000" }, { "protocol": "aerodrome", "pool_address": "0xPoolAddress2", "portion_bps": 4000, "token_in": "ETH", "token_out": "USDC", "amount_in": "400000000000000000", "amount_out": "1180000000" } ] } }资金池："uniswap-v3""aerodrome""sushi"代码##### sepolia ✅ [Success] Hash: 0x24545f0b08b3776d8ee665b8bdc6e7d6ee413563afebe743236cd23acb2087da Contract Address: 0xb81173637860c9B9Bf9c20b07d1c270A9A434373 Block: 9729606 Paid: 0.000000561955267517 ETH (555017 gas * 0.001012501 gwei)合约地址：0x45e1e7796e11156d12621687d0fa052f52a4db51区块浏览器：https://sepolia.etherscan.io/address/0x45e1e7796e11156d12621687d0fa052f52a4db51合约ABI文件📎FundMe.json function paymentConsultationFee() public payable { //gas 110661 require( msg.value.getConversionRate() == MIN_USD, "didn't send enough ETH" ); funders.push(msg.sender); addressToAmountFunded[msg.sender] += msg.value; }使用wegmi来与合约交互rainbowkit框架100000000000000 WeiRPC_URL:https://ethereum-sepolia-rpc.publicnode.com// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import {PriceConverter} from "./PriceConverter.sol"; //constant 常量,immutable 可变量 contract PayMent { using PriceConverter for uint256; uint256 public constant MIN_USD = 1e17; address[] public funders; mapping(address funder => uint256 amountFunded) public addressToAmountFunded; address public immutable i_owner; constructor() { i_owner = msg.sender; } function paymentConsultationFee() public payable { //gas 110661 require( msg.value.getConversionRate() == MIN_USD, "didn't send enough ETH" ); funders.push(msg.sender); addressToAmountFunded[msg.sender] += msg.value; } function withdraw() public onlyOwner { // gas 37184 // reset funders address and balance for ( uint256 fundersIndex = 0; fundersIndex < funders.length; fundersIndex++ ) { address funder = funders[fundersIndex]; addressToAmountFunded[funder] = 0; } funders = new address[](0); (bool callSuccessful, ) = payable(msg.sender).call{ value: address(this).balance }(""); require(callSuccessful, "Call Failed !!!"); } modifier onlyOwner() { require(msg.sender == i_owner, "Must be Owner !!!"); _; } }github：https://github.com/leafjava/X402SmartBundler