Help center

Find answers. Ship faster.

Setup guides, integration references, and troubleshooting resources for your team — all public, no login required.

Getting started

Authentication, environments, and your first API call.

Sessions, hosted web v2, and the iOS / Android / Flutter / Web SDKs.

SDK integration and the server API.

Submitting transactions and handling verdicts.

Event types and HMAC signature verification.

Result types and every error code, explained.

Talk to the team directly — early partners get direct access to the people building the platform.