x402 Agent Wallet Tools: X402 Duplicate Charge GuardPOST /v1/tools/x402-duplicate-charge-guard · x402 API by x402-agent-wallet-tools
Detect duplicate x402 transactions, repeated order deliveries, and replay-prone payment records before settlement or entitlement release. Wallet signing safety pack first: $0.018 for buyer-owned controls and enforcement policy, with a free receipt-gate preview plus duplicate-charge, EIP-712, allowance, Permit2, simulation, and spend guards. Start buyer evaluation at https://x402-wallet.558686.xyz/x402/buyer-use-cases or machine JSON https://x402-wallet.558686.xyz/x402/buyer-use-cases.json; checkout contract JSON is https://x402-wallet.558686.xyz/x402/checkout.json. Route payment activation JSON is https://x402-wallet.558686.xyz/x402/route/x402-duplicate-charge-guard/payment-activation.json. Browsers can inspect the quote, but payment requires a buyer-owned runtime that signs and retries th
What does this x402 API do?
x402 Agent Wallet Tools: X402 Duplicate Charge Guard. This is an x402-gated POST API resource from x402-agent-wallet-tools. TOLL·402 did not invoke this route automatically because doing so was not considered safe. No normalized USD price is recorded; the listing names an unspecified network. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Not recorded
- Latest evidence
- TOLL·402 did not invoke this route automatically because doing so was not considered safe
- Resource ID
- 4b3b7ac283be90cea2cf7d48
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://x402-wallet.558686.xyz/v1/tools/x402-duplicate-charge-guard", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"replace": "with provider-approved input"
}),
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.Review the provider input schema before running this non-read-only method. No payment code is included.
- Observed in 402-index
Discovered through self-registered.
- Exact route checked
not safely testable · potentially-mutating-method:POST
- Origin reachable
HEAD https://x402-wallet.558686.xyz/ returned 200.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.