GrabPay Singapore is Grab’s digital wallet integrated into its all-in-one super-app, offering a fast, secure, and cashless way to pay for rides, food delivery, shopping, bills, and more. Widely adopted since its in-store launch in November 2017, it is now accepted at thousands of merchants across Singapore, including hawker stalls, retail stores, and online shops. Learn more about GrabPay.

Payment method properties


Markets (consumer)	`SG`
Processing currencies	`SGD`
Consumer currencies	`SGD`
Settlement currencies	`SGD`
Authentication methods	`REDIRECT`
Authentication timeout	1 Hour
Minimum payment amount	SGD 1.00
Maximum payment amount	SGD 5000 for premium wallet consumers SGD 1000 for basic wallet consumers
Payment instrument	`PASSTHROUGH_WALLET`
Recurring payments	No
Separate captures	No
Refund	Full - Partial - Multiple
Refund validity	1 year
Disputes	No
Settlement risk	No
Sandbox availability	GrabPay sandbox

Make a GrabPay payment

GrabPay payments follow our standardised REDIRECT payment flow. We recommend including all relevant settings for any authentication methods you support.

To create a GrabPay payment, you'll need to provide the following data at minimum when calling our payment charges API:

Field	Description
paymentMethod	`GRABPAYOTP`
amount.value	The amount to be paid in the smallest units of the currency used.
amount.currency	`SGD`
consumer.country	The country where the consumer is shopping.
authenticationSettings: REDIRECT settings.returnUrl	Add the url where the consumer should be redirected to after they complete the payment. Required for the `REDIRECT` payment flow.

Request

POST /v1/payment-charges

{
  "paymentMethod": "GRABPAYOTP",
  "amount": {
    "value": 2000,
    "currency": "SGD"
  },
  "consumer": {
    "country": "SG"
  },
  "authenticationSettings": [
    {
      "type": "REDIRECT",
      "settings": {
        "returnUrl": "https://www.webshop.com/order-results-page"
      }
    }
  ]
}

Response

You'll receive our standard payment charge response with the available authentication methods:

{
  "id": "charge_Y3JVzvEaJpvG53xd2R2Zt",
  "paymentMethod": "GRABPAYOTP",
  "paymentMedium": "ECOMMERCE",
  "scheduleType": "UNSCHEDULED",
  "instrumentId": "instr_Asu0ig2PXXZSiNrhY44A5",
  "currency": "SGD",
  "country": "SG",
  "status": "AUTHENTICATION_PENDING",
  "consumer": {
    "country": "SG"
  },
  "authenticationMethods": [
    {
      "details": {
        "requestUrl": "https://redirection-target.ppro.com",
        "requestMethod": "GET"
      },
      "type": "REDIRECT"
    }
  ],
  "authorizations": [
    {
      "id": "authz_aPobet0FNZNU1bYqfexFd",
      "amount": 2000,
      "status": "AUTHENTICATION_PENDING",
      "createdAt": "2025-06-21T08:34:20.766Z",
      "updatedAt": "2025-06-21T08:34:20.766Z"
    }
  ],
  "captures": [],
  "refunds": [],
  "voids": [],
  "createdAt": "2025-06-21T08:34:20.114Z",
  "updatedAt": "2025-06-21T08:34:20.766Z",
  "_links": {
    "authorizations": {
      "href": "/v1/payment-charges/charge_Y3JVzvEaJpvG53xd2R2Zt/authorizations"
    },
    "captures": {
      "href": "/v1/payment-charges/charge_Y3JVzvEaJpvG53xd2R2Zt/captures"
    },
    "refunds": {
      "href": "/v1/payment-charges/charge_Y3JVzvEaJpvG53xd2R2Zt/refunds"
    },
    "voids": {
      "href": "/v1/payment-charges/charge_Y3JVzvEaJpvG53xd2R2Zt/voids"
    }
  }
}

Pick the desired authentication method

REDIRECT

Redirect your consumer to the returned $.authenticationMethods[?(@.type == "REDIRECT")].details.requestUrl.
For example, with the value of https://redirection-target.ppro.com/ using the returned $.authenticationMethods[?(@.type == "REDIRECT")].details.requestMethod HTTP method.
The consumer will be presented with the reference number and instructions to complete the payment.

Handling the payment result

REDIRECT

After the consumer completes the payment, they are redirected to the returnUrl specified in the payment charge creation request.
Upon redirect back to your site, retrieve the latest payment status by performing a GET /v1/payment-charges/{paymentChargeId}. Use the returned status field to determine and display the final payment outcome to the consumer.
Additionally, webhooks are triggered to notify you of the payment result. This ensures you receive the outcome even if the consumer closes their browser or fails to return to your website.

Payment instrument

A PASSTHROUGH_WALLET instrument will be created for GrabPay, with no additional data provided.

Request

GET /v1/payment-instruments/{instrument-id}

Response

{
    "id": "instr_Dh6k2ZkDXsele2sRjflto",
    "type": "PASSTHROUGH_WALLET"
}