Primer is a fintech company that develops a low-code payments infrastructure and an online checkout application programming interface. It enables e-commerce merchants and online payments facilitators to consolidate their payments services stack, connecting third-party services such as payment service providers, fraud providers, chargeback services, subscription billing engines, BI tools, and loyalty and rewards platforms. The company allows merchants to add new payment methods, unify fraud mitigation efforts, and build transaction routing with no code.