PAYMILL offers a payment API for online merchants and software providers. Developers use it for card transactions, refunds, customers, offers and subscriptions, and the documented calls can be tested with simple requests. The service is delivered as a hosted API that merchants connect to their websites and applications. The operating company is PAYMILL GmbH, based in Munich, Germany.
In 2016, after a preliminary insolvency procedure, PAYMILL was acquired by Klik & Pay, a Swiss fintech brand of the CYBERservices group, and the product continued under the PAYMILL name. The imprint does not set out the corporate structure. The Swiss group is therefore named as parent on the basis of that acquisition and should be checked in the German commercial register. The website does not describe where data is hosted. For a European organisation, the relevant points are the Swiss parent company and the contract terms on data processing and access.