Answers to the common questions, plus a direct line to a human when you need one. Most issues are one doc away.
Make your first API call, get your keys, and understand test vs live mode.
The full 4242 table, decline codes, and how the sandbox behaves.
Verify signatures, handle retries, and subscribe to the stream.
Create hosted invoices, understand statuses, and reconcile payments.
How usage pricing works and what live mode costs.
Versioned, plant-named releases with breaking-change flags.
Our team reads every message. We'll get back to you within one business day.