“Payments is super complex,” says Primer co-founder Paul Anthony, who was previously Head of Solutions for EMEA at PayPal-owned Braintree. “Merchants have become increasingly sophisticated over the past few years in what they need from their overall payments solution, which requires them to leverage a variety of payment service providers (PSPs), local banking relationships, proprietary payment methods (think Klarna, GoCardless, Affirm, and WeChat) and other third party payments services in order to expand to new markets and offer the payments experiences their customers demand”.

https://techcrunch.com/2020/05/11/primer/