GrabExpress Delivery API

How to authenticate

1. 1Register as a Grab partner at developer.grab.com and request GrabExpress API access (business review applies).
2. 2Receive client_id and client_secret for the sandbox.
3. 3Get a token via OAuth 2.0 client_credentials against the Grab token endpoint.
4. 4Quote first (POST /deliveries/quotes), then create the delivery with the quoted payload.
5. 5Move to production keys after Grab approves your integration.

Example request

curl -X POST 'https://partner-api.grab.com/grab-express/v1/deliveries/quotes' -H 'Authorization: Bearer TOKEN' -H 'Content-Type: application/json' -d '{"origin":{"address":"1 Raffles Place"},"destination":{"address":"81 Ubi Ave 4"},"packages":[{"weight":1}]}'

Example response

{"quotes":[{"service":{"type":"INSTANT"},"amount":13.5,"currency":{"code":"SGD"}}]}