---

name: token-approval-checker description: 钱包授权管理工具，检查 ERC20/ERC721 代币授权风险，识别无限授权和高风险授权。每次调用收取 0.001 USDT。当用户提到"检查授权"、"撤销授权"、"Token Approval"、"高风险授权"、"MetaMask授权"时使用。Wallet authorization management tool for checking ERC20/ERC721 token approval risks. Charges 0.001 USDT per call. metadata: openclaw: emoji: "🔐" pricing: amount: "0.001" currency: "USDT" chain: "BNB Chain" skill_id: "f6a281ea-7575-40f0-a6c3-25068de08bce"

Token Approval Checker / 钱包授权检查器

English | 中文

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English

Overview

Check and manage your wallet's token approvals. Identify unlimited approvals and high-risk authorizations to protect your assets.

Pricing: 0.001 USDT per call

Supported Blockchains

Chain	Token Approval Checker
Ethereum	https://etherscan.io/tokenapprovalchecker
BSC	https://bscscan.com/tokenapprovalchecker
Polygon	https://polygonscan.com/tokenapprovalchecker
Arbitrum	https://arbiscan.io/tokenapprovalchecker
Optimism	https://optimistic.etherscan.io/tokenapprovalchecker
Avalanche	https://snowtrace.io/tokenapprovalchecker
Base	https://basescan.org/tokenapprovalchecker

Risk Levels

Level	Icon	Condition	Action
Critical	🔴	Unlimited + Unverified Contract	Revoke Immediately
High	🟠	Unlimited + Low Liquidity Token	Revoke Recommended
Medium	🟡	Unlimited + Known Protocol	Consider Revoking
Low	🟢	Limited Amount + Known Protocol	Can Keep

How to Use

User: Check my wallet 0x1234...5678 for approval risks
Claude: [Charge 0.001 USDT] → [Analyze approvals] → [Generate risk report]

Revoke Tools

Tool	Link	Features
Revoke.cash	https://revoke.cash	Multi-chain, Recommended
Unrekt	https://app.unrekt.net	Batch revoke
Etherscan	https://etherscan.io/tokenapprovalchecker	Official tool

Known Protocol Whitelist

• DEX: Uniswap, SushiSwap, PancakeSwap, 1inch
• Lending: Aave, Compound, MakerDAO
• NFT: OpenSea, Blur, Magic Eden
• Staking: Lido, Rocket Pool

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中文

概述

检查和管理你的钱包代币授权，识别无限授权和高风险授权，保护资产安全。

费用: 每次调用 0.001 USDT

支持的区块链

链	Token Approval Checker
Ethereum	https://etherscan.io/tokenapprovalchecker
BSC	https://bscscan.com/tokenapprovalchecker
Polygon	https://polygonscan.com/tokenapprovalchecker
Arbitrum	https://arbiscan.io/tokenapprovalchecker
Optimism	https://optimistic.etherscan.io/tokenapprovalchecker
Avalanche	https://snowtrace.io/tokenapprovalchecker
Base	https://basescan.org/tokenapprovalchecker

风险评级标准

等级	图标	条件	建议
极高危	🔴	无限授权 + 未验证合约	立即撤销
高危	🟠	无限授权 + 低流动性代币	建议撤销
中危	🟡	无限授权 + 知名协议	可考虑撤销
低危	🟢	有限额度 + 知名协议	可保留

使用方法

用户: 检查我的钱包 0x1234...5678 的授权风险
Claude: [扣费 0.001 USDT] → [分析授权] → [生成风险报告]

撤销授权工具

工具	链接	特点
Revoke.cash	https://revoke.cash	多链支持，推荐
Unrekt	https://app.unrekt.net	批量撤销
Etherscan	https://etherscan.io/tokenapprovalchecker	官方工具

知名协议白名单

以下协议的授权风险较低：

• DEX: Uniswap, SushiSwap, PancakeSwap, 1inch
• 借贷: Aave, Compound, MakerDAO
• NFT: OpenSea, Blur, Magic Eden
• 质押: Lido, Rocket Pool

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SkillPay Billing Integration / 计费接入

// ═══════════════════════════════════════════════════
// SkillPay Billing Integration / 计费接入
// ═══════════════════════════════════════════════════

const BILLING_API_URL = 'https://skillpay.me';
const BILLING_API_KEY = 'sk_b82c6ede30fbac400f2ccbaefc57a013270ab0af29e7cd06746511a51977a5aa';
const SKILL_ID = 'f6a281ea-7575-40f0-a6c3-25068de08bce';

// ① Check balance / 查余额
async function checkBalance(userId) {
  const resp = await fetch(
    `${BILLING_API_URL}/api/v1/billing/balance?user_id=${userId}`,
    { headers: { 'X-API-Key': BILLING_API_KEY } }
  );
  const data = await resp.json();
  return data.balance;  // USDT amount
}

// ② Charge per call / 每次调用扣费
async function chargeUser(userId) {
  const resp = await fetch(`${BILLING_API_URL}/api/v1/billing/charge`, {
    method: 'POST',
    headers: {
      'X-API-Key': BILLING_API_KEY,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      user_id: userId,
      skill_id: SKILL_ID,
      amount: 0.001,  // USDT per call
    }),
  });
  const data = await resp.json();

  if (data.success) {
    return { ok: true, balance: data.balance };
  }

  // Insufficient balance → get payment link
  return { ok: false, balance: data.balance, paymentUrl: data.payment_url };
}

// ③ Generate payment link / 生成充值链接
async function getPaymentLink(userId, amount) {
  const resp = await fetch(`${BILLING_API_URL}/api/v1/billing/payment-link`, {
    method: 'POST',
    headers: {
      'X-API-Key': BILLING_API_KEY,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({ user_id: userId, amount }),
  });
  const data = await resp.json();
  return data.payment_url;  // BNB Chain USDT payment link
}

// ═══════ Usage example / 使用示例 ═══════
async function handleApprovalCheck(userId, walletAddress) {
  const result = await chargeUser(userId);
  if (result.ok) {
    // ✅ Execute skill logic - check approvals
    return await checkWalletApprovals(walletAddress);
  } else {
    // ❌ Insufficient balance, return payment link
    return {
      success: false,
      paymentUrl: result.paymentUrl,
      message: "Insufficient balance / 余额不足"
    };
  }
}

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Code Example: Manual Revoke / 手动撤销代码

const { ethers } = require('ethers');

async function revokeApproval(wallet, tokenAddress, spenderAddress) {
  const ERC20_ABI = ['function approve(address, uint256) external returns (bool)'];
  const token = new ethers.Contract(tokenAddress, ERC20_ABI, wallet);

  // Set allowance to 0 to revoke / 设置额度为 0 即撤销
  const tx = await token.approve(spenderAddress, 0);
  return await tx.wait();
}

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Important Notes / 注意事项

1. Revoking approvals requires gas fees / 撤销授权需要支付 Gas 费
2. Check approvals regularly (monthly recommended) / 定期检查授权（建议每月一次）
3. Revoke unnecessary approvals after transactions / 交易完成后及时撤销不必要的授权
4. Prefer limited approvals over unlimited / 优先使用有限额度授权而非无限授权