# Rate Limiting

The TiDB Cloud API allows up to 100 requests per minute per API key. If you exceed the rate limit, the API returns a `429` error. For more quota, you can [submit a request](https://support.pingcap.com/hc/en-us/requests/new?ticket_form_id=7800003722519) to contact our support team.

Each API request returns the following headers about the limit.

- `X-Ratelimit-Limit-Minute`: The number of requests allowed per minute. It is 100 currently.
- `X-Ratelimit-Remaining-Minute`: The number of remaining requests in the current minute. When it reaches `0`, the API returns a `429` error and indicates that you exceed the rate limit.
- `X-Ratelimit-Reset`: The time in seconds at which the current rate limit resets.

If you exceed the rate limit, an error response returns like this.

```
> HTTP/2 429
> date: Fri, 22 Jul 2022 05:28:37 GMT
> content-type: application/json
> content-length: 66
> x-ratelimit-reset: 23
> x-ratelimit-remaining-minute: 0
> x-ratelimit-limit-minute: 100
> x-kong-response-latency: 2
> server: kong/2.8.1

> {"details":[],"code":49900007,"message":"The request exceeded the limit of 100 times per apikey per minute. For more quota, please contact us: https://support.pingcap.com/hc/en-us/requests/new?ticket_form_id=7800003722519"}
```