Zettle Developer

The Zettle payment SDK for Android lets you accept payments from an Android app, using a Zettle card reader or QRC. The SDK is compatible with apps supporting Android API level 21 and above. The SDK itself is written in Kotlin which is the preferred language, however examples are available both in Kotlin and in Java.

Market availability

Currently there are these ways to handle payments with the SDK: Card payments, and QRC using PayPal or Venmo. The following table describes the availability in different markets.

Market	Card Payments	PayPal QRC	Venmo QRC
United States	X	X	X
United Kingdom	X	X	-
Sweden	X	-	-
Brazil	X	-	-
Norway	X	-	-
Denmark	X	-	-
Finland	X	-	-
Germany	X	X	-
Mexico	X	-	-
Netherlands	X	-	-
France	X	-	-
Spain	X	-	-
Italy	X	-	-

You can only integrate your point of sales (POS) with the Zettle SDK in supported markets. This applies regardless of where you are located.

Note: To test your integration with the Zettle SDK, you need to order a card reader. This can only be done if you are located in a supported market.

Main features

Take card payments with a Zettle card reader.
Take PayPal QRC payments.
Take Venmo QRC payments.
Refund card payments.
Receive information about a payment.
Login/logout of Zettle accounts and simple switching between multiple accounts.
Settings screen. From this a user can handle card readers and access help and support.