Barzahlen is a german based payment system that allows users to shop online, select Barzahlen as a payment method, print out a purchase form or receive a purchase form by SMS, then pay in person at a Barzahlen partner store. This approach aims to make online shopping more secure by allowing online selection, but in person payment. The Barzahlen API is available to allow users to integrate online shops with the Barzahlen payment system and includes merchandise management and back-end systems. The API is a JSON-based REST interface.
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