***

title: Rate Limits
description: Understand how rate limits work for the 0x APIs
------------------------------------------------------------

<Note>
  Want higher rate limits? Check out our [available
  options](https://0x.org/pricing)
</Note>

## Why do we have rate limits?

Rate limiting is used by the API to prevent abuse and ensure a reliable experience for all consumers.

## What are the rate limits for the 0x APIs?

The current limit for the Free Tier of our APIs is approximately 5 Requests Per Second (RPS). If you need higher rate limits, contact us on our [pricing page](https://0x.org/pricing) to learn about our custom plans.

## How are rates calculated?

The following is shared to help your team to maximize your app setup. The example below uses the 5 RPS Free Tier limit; however, the same logic applies to all tiers.

* The 5 RPS is 5 calls across our endpoints
* The 5 RPS is per fixed 1 second window; in other words, the API has fixed 1 second windows and will allow 5 calls any where within that 1 second window
* You can view your current usage and limits on the [0x API Dashboard](https://dashboard.0x.org/login).