Shipping label sizes

Use this guide to learn how to use the Shippo API to create different label sizes for your application.

Setting your label format

Specify your preferred label format by setting the label_file_type parameter to one of the label tokens when calling the transaction endpoint to purchase your label.

Each carrier supports different label size options. Refer to our carrier capabilities for carrier specific details.

If you don't set the label_file_type, the Shippo API will use the default format set in the Shippo dashboard.

curl --location --request POST 'https://api.goshippo.com/transactions' \
--header 'Authorization: ShippoToken <API_TOKEN>' \
--header 'Content-Type: application/json' \
--data-raw '{
  "rate": "a5c9d1bec93149f5bedc3a9374b50970",
  "async": false,
  "label_file_type": "PDF"
}'

Shipping label format sizes