> ## Documentation Index
> Fetch the complete documentation index at: https://docs.plude.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Limitations

Our API employs a number of safeguards against bursts of incoming traffic to help maximise its stability. Users who send many requests in quick succession may see error responses that show up as `HTTP 429` status code.

We have several limit policies in the API, including:

* Request limitations of body size.
* Rate limitations of concurrent number of requests.

The limitations are described below.

## Rate limitations

For most APIs, we allows up to **50 read operations per second** and **50 write operations per second** in `production mode`, and 25 operations per second for each in `test mode`.

<Note>Increased rates are available for **premium plans**.</Note>

## Request limitations

Our API is limited to 16 MB (16.777.216 bytes) per request. A `HTTP 413` error will be returned if the request exceeds the limitation.

Please review our [acceptable use policy](#) as part of your onboarding.