x402 Payment Integration

1import { wrapFetchWithPayment, decodeXPaymentResponse } from "x402-fetch";
2import { privateKeyToAccount } from "viem/accounts";
3import fs from 'fs';
4
5// ====================================
6// 1. Setup Wallet
7// ====================================
8const PRIVATE_KEY = "0xYourPrivateKey";
9const account = privateKeyToAccount(PRIVATE_KEY);
10
11console.log("✅ Wallet Address:", account.address);
12
13// ====================================
14// 2. Wrap Fetch with Payment
15// ====================================
16const fetchWithPayment = wrapFetchWithPayment(fetch, account);
17
18// ====================================
19// 3. Upload ZIP for Professional Audit
20// ====================================
21async function auditByZip() {
22  try {
23    console.log("\n🚀 Starting ZIP-Based Audit with x402 Payment...");
24    console.log("💰 Price: $0.10 USDC");
25    
26    // Read your contract ZIP file
27    const zipFile = fs.readFileSync('./my-contract.zip');
28    const formData = new FormData();
29    const blob = new Blob([zipFile], { type: 'application/zip' });
30    formData.append('file', blob, 'my-contract.zip');
31    
32    console.log("📤 Uploading contract and processing payment...");
33    
34    const response = await fetchWithPayment('https://api.veridex.space/ai-audit-pro', {
35      method: 'POST',
36      body: formData,
37    });
38    
39    console.log("✅ Response Status:", response.status);
40    
41    if (!response.ok) {
42      const errorText = await response.text();
43      console.error("❌ Server Error:", errorText);
44      return;
45    }
46    
47    // Check payment details
48    const xPaymentHeader = response.headers.get("x-payment-response");
49    if (xPaymentHeader) {
50      const paymentResponse = decodeXPaymentResponse(xPaymentHeader);
51      console.log("\n💳 Payment Details:");
52      console.log(paymentResponse);
53    }
54    
55    const result = await response.json();
56    
57    console.log("\n📊 Audit Results:");
58    console.log("Analysis ID:", result.analysis_id);
59    console.log("AI Model:", result.ai_model);
60    console.log("Cost:", result.cost_usd, "USD");
61    console.log("\n📝 Detailed Audit Report:");
62    console.log(result.detailed_audit);
63    
64    // Save report to file
65    if (result.detailed_audit) {
66      const filename = `audit-report-${result.analysis_id}.txt`;
67      fs.writeFileSync(filename, result.detailed_audit);
68      console.log("\n✅ Report saved to:", filename);
69    }
70    
71  } catch (error) {
72    console.error("❌ Error:", error.message);
73  }
74}
75
76// ====================================
77// 4. Run Audit
78// ====================================
79auditByZip();

1import { wrapFetchWithPayment, decodeXPaymentResponse } from "x402-fetch";
2import { privateKeyToAccount } from "viem/accounts";
3import fs from 'fs';
4
5// ====================================
6// 1. Setup Wallet
7// ====================================
8const PRIVATE_KEY = "0xYourPrivateKey";
9const account = privateKeyToAccount(PRIVATE_KEY);
10
11console.log("✅ Wallet Address:", account.address);
12
13// ====================================
14// 2. Wrap Fetch with Payment
15// ====================================
16const fetchWithPayment = wrapFetchWithPayment(fetch, account);
17
18// ====================================
19// 3. Audit by Contract Address
20// ====================================
21async function auditByAddress() {
22  try {
23    console.log("\n🚀 Starting Address-Based Audit with x402 Payment...");
24    console.log("💰 Price: $0.05 USDC (50% cheaper!)");
25    
26    // Example: USDT contract on Ethereum mainnet
27    const contractAddress = "0xdAC17F958D2ee523a2206206994597C13D831ec7";
28    
29    console.log("📍 Contract Address:", contractAddress);
30    console.log("🔍 Fetching verified source from Etherscan...");
31    
32    const response = await fetchWithPayment('https://api.veridex.space/ai-audit-address', {
33      method: 'POST',
34      headers: { 'Content-Type': 'application/json' },
35      body: JSON.stringify({
36        contract_address: contractAddress,
37        network: "ethereum"
38      }),
39    });
40    
41    console.log("✅ Response Status:", response.status);
42    
43    if (!response.ok) {
44      const errorText = await response.text();
45      console.error("❌ Server Error:", errorText);
46      return;
47    }
48    
49    // Check payment details
50    const xPaymentHeader = response.headers.get("x-payment-response");
51    if (xPaymentHeader) {
52      const paymentResponse = decodeXPaymentResponse(xPaymentHeader);
53      console.log("\n💳 Payment Details:");
54      console.log(paymentResponse);
55    }
56    
57    const result = await response.json();
58    
59    console.log("\n📊 Audit Results:");
60    console.log("Analysis ID:", result.analysis_id);
61    console.log("Contract:", result.contract_name);
62    console.log("Address:", result.contract_address);
63    console.log("Network:", result.network);
64    console.log("Compiler:", result.compiler_version);
65    console.log("AI Model:", result.ai_model);
66    console.log("Cost:", result.cost_usd, "USD");
67    console.log("\n📝 Detailed Audit Report:");
68    console.log(result.detailed_audit);
69    
70    // Save report to file
71    if (result.detailed_audit) {
72      const filename = `audit-${result.contract_name}-${result.analysis_id}.txt`;
73      fs.writeFileSync(filename, result.detailed_audit);
74      console.log("\n✅ Report saved to:", filename);
75    }
76    
77  } catch (error) {
78    console.error("❌ Error:", error.message);
79  }
80}
81
82// ====================================
83// 4. Run Audit
84// ====================================
85auditByAddress();