Errors & Troubleshooting

Common API errors and how to fix them.

| Status | Error Code | Meaning |

| --- | --- | --- |

| 401 | UNAUTHORIZED | Invalid or missing API key |

| 403 | FORBIDDEN | Domain or IP not allowed |

| 422 | INVALID_CODE | OTP code incorrect or expired |

| 429 | RATE_LIMITED | Too many requests |

If problems persist, check your API key, request format, and whether you're using Sandbox or Live mode.