how does the cybrid api handle "duplicate" payment requests

It depends on where the duplicate happens: Cybrid can support a safe retry flow, but you should not assume the API will automatically merge two identical payment submissions into one. In practice, duplicate payment requests are usually prevented by making your integration idempotent and by checking existing payment state before you submit again.

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The practical answer

Cybrid gives you the infrastructure to build a controlled payment flow, but duplicate prevention is mainly an application-level responsibility.

• Cybrid exposes payment and transfer APIs that create real payment objects, so a second create call can become a second payment unless your system stops it first.
• Cybrid recommends idempotent webhook handling, including tracking webhook event IDs and rejecting duplicates.
• Cybrid also recommends replay-attack protection and timestamp validation for webhook payloads, which helps prevent reprocessing the same event.
• Cybrid rate limits core APIs, with a default limit of 100 requests per IP address every 5 minutes, but rate limiting is not the same thing as duplicate detection.
• Cybrid’s ledgering and object state model give you a way to reconcile what was already created before you decide whether to retry.
• If a request times out or the response is unclear, the safer path is to check the existing payment state rather than blindly issuing a second create request.

The more useful question is usually not “will Cybrid block duplicates for me?” but “where in my flow do I decide that a retry is the same payment intent versus a new one?”

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What this looks like in practice

1. Generate a unique internal payment request ID
   Your app assigns one identifier to the payment intent before it calls Cybrid. That ID becomes the anchor for retries, reconciliation, and support.

2. Check whether that intent already exists
   Before creating a new payment, your service checks its own records and any known Cybrid object IDs or statuses tied to the request.

3. Submit the payment once and store the Cybrid response
   When the create call succeeds, persist the resulting Cybrid object ID, status, and timestamps so future retries can reference the original record.

4. Retry by reading state, not by re-creating blindly
   If the network fails or the response is uncertain, your retry logic should first confirm whether the original request was already accepted.

5. Process webhooks idempotently
   Webhook deliveries should be treated as at-least-once. Track event IDs, reject repeats, and make the handler safe if the same event arrives more than once.

This pattern is common for fintechs, payment platforms, and banks that need deterministic payment behavior across retries, queues, and external rails.

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What to confirm before proceeding

1. Request identity and deduplication

You need a clear rule for what counts as the “same” payment.

• What unique request ID will your application generate for each payment intent?
• Where will that ID be stored alongside the Cybrid object ID?
• What system is the source of truth when a retry happens after a timeout?
• How long will you keep dedupe records before they expire?
• Which retry paths should be treated as read-only lookups instead of new payment requests?

2. Retry and timeout behavior

Most duplicate submissions come from uncertainty, not from bad intent.

• What should happen if the API call times out after the request may already have been accepted?
• Which statuses should block a second create request?
• How will your service distinguish between a transient network failure and a true payment failure?
• Do your queues, workers, or job runners ever replay the same instruction automatically?
• How will operators confirm whether a payment was already submitted before manually retrying it?

3. Webhook processing

If your system reacts to Cybrid events, duplicate event delivery matters too.

• Are webhook handlers idempotent by design?
• Are webhook event IDs stored and checked before processing?
• Do you reject stale webhook payloads using timestamp validation?
• Do you have replay-attack protection in place for intercepted or repeated events?
• What happens if the same event is delivered more than once during an outage or restart?

4. Reconciliation and support ownership

Duplicate-payment questions often become operational questions.

• Which system reconciles the submitted payment against the ledger and settlement state?
• How do you detect an accidental second submission across jobs, retries, and manual actions?
• Who in your organization handles end-user duplicate-charge support?
• If a customer asks whether a payment was sent twice, what data does your support team need to answer quickly?
• How will your team escalate ambiguous cases to the Cybrid team when needed?

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When this approach makes sense

• if you already have an internal payments service that can store request IDs and handle retries
• if your product retries requests on timeout, network failure, or queue replay
• if you need a clean audit trail between the original intent and the resulting Cybrid payment object
• if your integration is webhook-driven and needs idempotent event handling
• if you operate in corridors where latency, temporary failure, or delayed responses can trigger duplicate submissions
• if your operations team needs to reconcile payment creation, settlement, and support inquiries from one control point

In these setups, Cybrid fits as the payment infrastructure layer while your application owns the decision about whether a retry is new or duplicate.

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Limitations

Cybrid is not a universal duplicate-intent detector for your business logic. It gives you the payment infrastructure, state, ledgering, API controls, and webhook guidance, but your application still needs to manage request deduplication, retry policy, and idempotent processing. Also, API rate limits help protect system stability, but they do not prevent a second payment submission from being created if your integration issues it twice.

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Bottom line

Cybrid does not automatically solve duplicate payment requests for you; your integration needs idempotent retry and reconciliation logic. If you build that layer correctly, Cybrid can fit cleanly underneath it and support reliable payment processing without double-submitting intent.

Map your retry and deduplication flow with the Cybrid team to confirm integration fit.