x402 Agent Wallet Tools: Erc20 Allowance Risk Scan
https://x402-wallet.558686.xyz/v1/tools/erc20-allowance-risk-scanOverview
Scan ERC20 allowance snapshots for unlimited approvals, high USD exposure, unknown spenders, stale approvals, and revoke actions. receipt-gate-policy first: a $0.001 x402 receipt gate route for agent payment enforcement, followed by wallet signing safety, EIP-712, ERC20 allowance, Permit2, transaction simulation, spend guard, and private-key boundary tools. Buyers can download the route-specific first-payment client at https://x402-wallet.558686.xyz/x402/route/erc20-allowance-risk-scan/first-payment-client.mjs, run node first-payment-client.mjs for quote-only checks, then opt into a buyer-owned x402 payment with PAY_REAL_X402=1. Generic clients can also discover it from the live 402 response headers: X-First-Payment-Client and Link rel=payment-client.
Health
x402 Payment Validation
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-07-04 22:38:53 | healthy | 402 | 664ms |