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x402 Agent Wallet Tools – ERC20 Allowance Risk Scan
x402
x402 Agent Wallet Tools – ERC20 Allowance Risk Scan is a paid API for AI agents from x402-wallet.558686.xyz, paid per call via x402, $0.014/call, status unknown (last checked 2026-09-13).
Scans a wallet's ERC20 token allowances for risk exposure and returns a risk level assessment, findings, and a revocation plan for dangerous or unlimited approvals.
Price / call$0.014
Success—
StatusUnknown
How this service works
A buyer-side control console for signature risk, EIP-712 review, transaction decoding, ERC20 allowance risk, Permit/Permit2 approvals, transaction simulation summaries, spend guard policy, receipt gate enforcement, and private-key boundaries.
Output
Returns a JSON object with: a boolean ok status, the tool name, echoed input, an array of risk findings (each describing a specific dangerous allowance), an overall riskLevel enum, a list of analyzed allowances, and a boolean revokePlan indicating whether revocation is recommended.
Example use cases
Audit unlimited DeFi approvals
“My wallet 0x1234...5678 has an unlimited USDC allowance set for some DeFi contract 0xabcd...efgh that I don't recognize as trusted — can you scan that allowance and tell me the risk level and whether I should revoke it?”
Pre-trade approval safety check
“Before I execute a swap, can you check my wallet 0xdead...beef's current token allowances for ETH and WBTC to the DEX router 0x9999...1111 — I've marked the router as trusted — and let me know if anything looks risky?”
Post-incident allowance triage
“My wallet 0xface...cafe may have been phished. Can you scan all these allowances I'm providing — some to untrusted spenders with unlimited amounts — assess the overall risk level, and give me a revocation plan to clean things up?”
Technical details
Endpoint
POSThttps://x402-wallet.558686.xyz/v1/tools/erc20-allowance-risk-scanWhen to prefer
Choose this endpoint when an AI agent needs to programmatically assess the risk of a wallet's existing ERC20 token approvals before executing a transaction or after a suspected phishing event. It is purpose-built for on-chain allowance risk classification with a structured revocation recommendation, making it superior to generic blockchain explorers that list approvals without risk scoring. Best suited for DeFi safety workflows, wallet security audits, and pre-transaction hygiene checks.
Side effects
- Invalid Ethereum address format for owner or spender returns a validation error
- Malformed allowance array (missing required fields like token or spender) causes a 400 bad request
- Unlimited allowance string not recognized may cause unexpected classification
- Trusted flag misconfiguration may under-report risk for truly dangerous spenders
- Service unavailability or payment failure (x402 protocol) returns a 402 or 5xx error
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "erc20-allowance-risk-scan",
"input": {
"owner": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"allowances": [
{
"token": "USDC",
"spender": "0xbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
"trusted": false,
"allowance": "unlimited"
}
]
},
"route": "/v1/tools/erc20-allowance-risk-scan",
"result": {
"findings": [],
"riskLevel": "riskLevel_example",
"allowances": [],
"revokePlan": true
},
"project": "x402-agent-wallet-tools",
"deterministic": true
}
}Tags
x402
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