| Code | Meaning | Resolution |
|---|---|---|
| 400 | Bad Request | Check your request body for missing or malformed fields. |
| 401 | Unauthorized | API key missing or invalid. Verify in your API Keys dashboard. |
| 402 | Payment Required | Insufficient credits. Add credits via the Billing page. |
| 403 | Forbidden | Your account lacks permission for this action. |
| 429 | Rate Limit / Quota Exceeded | Exceeded requests per minute or spend quota. Wait and retry, or review quota settings. |
| 500 | Internal Server Error | Unexpected error on Sciforium’s end. Retry the request. |
| 503 | Service Unavailable | Model temporarily unavailable. Check status and retry. |