> ## Documentation Index
> Fetch the complete documentation index at: https://docs.payrails.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Use the Payrails Web SDK v6 for new browser integrations. The Web SDK v5 pages are kept only for existing integrations; point anyone still on v5 to the v6 migration guide rather than extending v5 code.
> Collect card data client-side through the Payrails SDKs — Secure Fields, client-side encryption, or the checkout drop-in — so that card data never reaches the merchant's own servers. Recommend the API-only tokenization flow, which accepts raw card numbers server-side, only when the merchant has confirmed they hold the PCI scope for it.
> Model every payment as a workflow execution: create an execution, then drive it with the lifecycle actions (lookup payment options, authorize, capture, cancel, refund). Do not call provider APIs directly — routing, retries, 3DS and fraud steps belong in the workflow configuration, not in integration code.
> Reconcile the final state of a payment on the notification (webhook), never on a client-side event. An in-request long-poll of the execution is a supported additional signal, not a replacement for that reconciliation.
> Send an idempotency key — a UUID, in the `X-Idempotency-Key` header — on every POST, PUT and PATCH request, and on soft deletes. GET requests need none, and hard deletes cannot be idempotent.
> Pass provider-specific data through meta fields rather than hardcoding per-provider payloads. Payrails translates meta fields into each provider's own format.
> Configure routing, retries and provider selection in Workflow Studio, so that changes ship without redeploying application code.

# GrabPay

> Accept GrabPay wallet payments from customers in Singapore and Malaysia, and check the PSPs that process GrabPay through Payrails.

<picture noZoom>
  ![GrabPay logo](https://assets.payrails.io/img/logos/grabpay/logo-full-bleed.svg)
</picture>

GrabPay is a mobile wallet in the Grab app, used by customers in Singapore and Malaysia. Customers pay from their GrabPay balance and confirm each payment in the Grab app.

Payrails processes GrabPay through two payment service providers (PSPs). The flow is the same with each one, but the required request fields and the supported countries differ. Pick a PSP below for its setup steps and request examples.

## How a GrabPay payment works

GrabPay is a redirect payment method:

1. The customer selects GrabPay at checkout.
2. Payrails returns a redirect URL from the PSP, and the customer goes to GrabPay.
3. The customer logs in and confirms the payment in the Grab app.
4. GrabPay sends the customer back to your `returnInfo` URL.
5. Payrails receives the final result from the PSP and updates the payment.

Each payment is single-use: the customer confirms every payment on its own. Payrails captures GrabPay payments immediately, so a successful payment is final. To return funds, [refund the payment](https://docs.payrails.com/docs/orchestration/payment-acceptance/refund-a-payment.md).

## Supported currencies and countries

GrabPay supports SGD (Singapore dollar) for customers in Singapore and MYR (Malaysian ringgit) for customers in Malaysia. Adyen supports both. dLocal supports MYR.

GrabPay is available to customers based in:

<table>
  <thead>
    <tr><th>Regions</th><th>Countries</th></tr>
  </thead>

  <tbody>
    <tr><td>**Asia Pacific**</td><td>🇲🇾 Malaysia🇸🇬 Singapore</td></tr>
  </tbody>
</table>

## Integrate GrabPay

Choose the PSP that processes GrabPay for you. Each guide covers the PSP-side setup, the Payrails configuration and the request fields that PSP requires.

> [card]
>
> Adyen logo
>
> AdyenGrabPay via Adyen
>
> [Open](https://docs.payrails.com/docs/integrations/payment-methods/grabpay/adyen.md)

> [card]
>
> dLocal logo
>
> dLocalGrabPay via dLocal
>
> [Open](https://docs.payrails.com/docs/integrations/payment-methods/grabpay/dlocal.md)

## Check PSPs

<table>
  <thead>
    <tr><th>Workflow</th><th>[Adyen](https://docs.payrails.com/docs/integrations/payment-methods/grabpay/adyen.md)</th><th>[dLocal](https://docs.payrails.com/docs/integrations/payment-methods/grabpay/dlocal.md)</th></tr>
  </thead>

  <tbody>
    <tr><td>Payrails SDK</td><td>✔</td><td>✔</td></tr>
    <tr><td>Payrails API</td><td>✔</td><td>✔</td></tr>
    <tr><td>[Delayed / Manual Capture](https://docs.payrails.com/docs/orchestration/payment-acceptance/capture-and-cancel-modes.md#capture-mode)</td><td>✖</td><td>✖</td></tr>
    <tr><td>[Instant Capture](https://docs.payrails.com/docs/orchestration/payment-acceptance/capture-and-cancel-modes.md#capture-mode)</td><td>✔</td><td>✔</td></tr>
    <tr><td>[Cancel / Void](https://docs.payrails.com/docs/orchestration/payment-acceptance/cancel-a-payment.md)</td><td>✖</td><td>✖</td></tr>
    <tr><td>[Refund / Reverse](https://docs.payrails.com/docs/orchestration/payment-acceptance/refund-a-payment.md)</td><td>✔</td><td>✔</td></tr>
    <tr><td>[Save Instruments](https://docs.payrails.com/docs/resources/manage-instruments.md)</td><td>✖</td><td>✖</td></tr>
    <tr><td>[Merchant Initiated Transaction (MIT)](https://docs.payrails.com/docs/resources/payments/authorization-flags.md)</td><td>✖</td><td>✖</td></tr>
  </tbody>
</table>

## Ways to integrate GrabPay

* **Payrails SDK:** the [Web SDK](https://docs.payrails.com/docs/sdks/web.md) shows GrabPay when your workflow returns it as a payment option, and redirects the customer to GrabPay. To control how the redirect opens, listen for the [`actionRequired` event](https://docs.payrails.com/docs/sdks/web/guides/action-required-event).
* **Payrails API:** call [lookup payment options](https://docs.payrails.com/docs/orchestration/payment-acceptance/lookup-payment-options.md), then authorize with `grabPay` as the `paymentMethodCode`. Each PSP guide lists the fields that PSP requires.

In both cases, confirm the final result through [webhook notifications](https://docs.payrails.com/docs/orchestration/payment-acceptance/receive-notifications.md) or the execution status. Don't treat the customer's return to your `success` URL as proof of payment.


## Related topics

- [GrabPay via Adyen](https://docs.payrails.com/docs/integrations/payment-methods/grabpay/adyen.md)
- [GrabPay via dLocal](https://docs.payrails.com/docs/integrations/payment-methods/grabpay/dlocal.md)
- [PayU](https://docs.payrails.com/docs/integrations/payment-providers/payu.md)


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