Testing
Inflow provides a dedicated sandbox environment and a set of test card numbers so you can build and verify your integration without ever processing real funds. This section covers how to get sandbox access and which cards to use to simulate every payment outcome your code needs to handle.
What's in this section
| Page | Use it when |
|---|---|
| Sandbox Environment | Setting up a sandbox account, choosing the right base URL, and generating sandbox API keys. |
| Test Cards | Simulating successful payments, declines, 3DS challenges, and specific error codes. |
NoteSandbox and production are fully isolated. Always confirm which environment you are targeting — mixing keys and base URLs across environments returns
401 Unauthorized.
Updated about 14 hours ago