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

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:

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

1. 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.
2. The consumer will be presented with the reference number and instructions to complete the payment.

Handling the payment result

REDIRECT

1. After the consumer completes the payment, they are redirected to the returnUrl specified in the payment charge creation request.
2. 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.
3. 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"
}

Sandbox testing