---
title: Rate limits
slug: data-platform/api/rate-limits
docTags: 
createdAt: 2026-06-16T14:18:06.000Z
---

:::hint{type="warning"}
**Important**
If you are loading large amounts of data in bulk, ensure every request is done as a [batch](docId\:ea8gM-8YV9Xj4aTxQf38N). Every request can include up to 500 distinct objects (for example, 500 customers per request at 10 requests per second = 5,000 customer updates per second).
:::

| API             | Default Rate Limit      |
| --------------- | ----------------------- |
| Events          | No limit                |
| Lists           | 10 requests per second  |
| Objects         | No limit                |
| On-Site GraphQL | 500 requests per second |
| Profiles        | 10 requests per second  |
| Recommendations | 100 requests per second |

:::hint{type="info"}
**Note**
If you require higher rate limits for your use case, please contact the Optimizely Support Team for more information.
:::