For developers

The technical surface, explained in prose. The reference itself lives in the docs.

Being written

  • API keys, scopes, and what a key can never doHow keys are scoped, and the things no key is allowed to change.
  • The sandbox: building before you are verifiedA full simulation of every rail, with no real money anywhere near it.
  • Webhooks: the reliable way to know what happenedWhy the callback is the source of truth, and how to handle it properly.
  • Idempotency: why a retry does not pay twiceThe header that makes a timed-out payout safe to send again.