Limits & Quotas
Information about rate limits and monthly usage quotas.
To ensure fair usage and service stability, the Index Alpha API enforces the following limits:
Rate Limit
The maximum allowed rate is 50 requests per minute.
If you exceed this limit, the API will return a 429 Too Many Requests error. We recommend implementing retry logic with exponential backoff in your application.
Monthly Quota
Each API key is assigned a fixed monthly limit.
- Check Usage: Use the
/usageendpoint to track your current status. - Reset: Quotas reset on the 1st of every month at 00:00 UTC.
Error Codes
| Status Code | Description |
|---|---|
200 OK | Request successful. |
401 Unauthorized | API Token is missing. |
403 Forbidden | API Token is invalid or has expired. |
429 Too Many Requests | You have reached the rate limit or monthly quota. |
500 Internal Server Error | An error occurred on our side. |
Support
For technical issues or to request a higher usage limit, please contact the Index Alpha Team.