The SIBS Payment Initiation API allows users to initiate a payment from a client's request, using one of the payment instruments made available by the Bank of the Payment Service User. This API provides an interface to access PSD2 Payment services that are designed on a REST model utilizing JSON structures. It allows you to request the creation of a payment initiation, update user data, Get payment requests and more. Examples are available for cURL, Ruby, Python, PHP, Java, NodeJS, Go and Swift. SIBS builds tools to define the future of the digital economy in Europe and beyond.