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Risk API - Retry Safety Check
x402
Risk API - Retry Safety Check is a paid API for AI agents from risk-api-production-af85.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Determines whether a payment has already settled or is safe to retry, preventing double-charges on timed-out transactions.
Price / call$0.01
Success—
StatusUnknown
How this service works
Check if a payment settled or is safe to retry. Prevents double-charging on timeout.
Output
Returns a status indicating whether the payment has already settled and whether it is safe to retry, allowing callers to avoid double-charging on ambiguous or timed-out payment attempts.
Example use cases
E-commerce timeout retry check
“My checkout request timed out and I'm not sure if the payment went through — can you check if it settled before I try charging the customer again?”
Agent payment loop safeguard
“My automated agent sent a payment but didn't get a confirmation back. Check if that payment already went through so the agent knows whether to retry or abort.”
Post-network-outage reconciliation
“We had a network hiccup mid-transaction and I don't know if the payment completed. Can you tell me if it's safe to resubmit without double-billing the user?”
Technical details
Endpoint
GEThttps://risk-api-production-af85.up.railway.app/retry-safe?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to safely handle payment retries after a timeout or network failure, specifically to avoid double-charging. It is best suited for agentic payment flows on Base or x402-style micropayments where confirmation receipts may be lost. Prefer this over a raw transaction lookup when you need a clear go/no-go signal on retry safety rather than raw transaction data.
Side effects
- Missing or invalid payment/transaction identifier returns an error
- Transaction too recent to have a definitive settlement status
- Network timeout reaching the Railway-hosted service
- Unrecognized transaction type or method returns a validation error
- Payment hash not found on-chain returns unknown status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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