Process transactions with ease no matter how large your volume. Make payment processing the least of your worries while you focus on growing your business.
Choosing a payment API is one of the highest-leverage technical decisions a development team makes. The wrong choice means rebuilding the payment layer 18 months later when rate increases, account instability, or missing features become blocking issues. In this guide, we compare the five most-evaluated payment processor APIs in 2026 – Stripe, Adyen, Braintree, Square, and Coastal Pay – across the dimensions that actually matter to development teams: documentation quality, tokenization and PCI scope, webhook reliability, SDK coverage, ACH support, and total processing cost at volume.
Card processing fees are one of the largest controllable costs in retail. Surcharging lets you shift those fees to card-paying customers – legally, transparently, and without replacing your POS. Coastal Pay approves most standard-risk U.S. retail merchants in approximately 2 minutes and configures a fully compliant surcharging or dual pricing program across your existing POS in the same business day.
Why Partner With Us?
Building a reputable and long-lasting business means providing tools and solutions that strengthens customer.
Our team focuses not only on providing trusted and secure processing solutions, but also innovative tools and solutions to help develop....
Yes, you will receive and email from support@coastalpay.com once your accounts is approved with instructions on how to complete the PCI Survey. You can also submit a Helpdesk Ticket and our team can help you with the survey.