Adyen

Adyen is a hosted payment platform: merchants and platforms connect to it through its API. The platform takes online and in-person payments and sends payouts, and the company describes it as one platform for payments, data and financial products. Client code for the API is published as server-side libraries for several package systems, including npm, Maven and Composer, and the Customer Area, where account users work, supports single sign-on over SAML 2.0 and user roles that set what each user may do. Adyen N.V. is registered in Amsterdam, where the company was founded in 2006.

Worth knowing

Fees are charged per transaction: a fixed processing fee plus a fee set by the payment method.