# Get Flow Control Key

> Get details of a specific Flow Control key

## Endpoint

`GET https://qstash-{region}.upstash.io/v2/flowControl/{flowControlKey}`

## Parameters

- `flowControlKey` (path, string, required): The Flow Control key to retrieve

## Responses

### 200 - Flow control key details

- `flowControlKey` (string): The flow control key name
- `waitlistSize` (integer): The number of messages waiting due to flow control configuration.

### 404 - Flow Control key not found

- `error` (string, required): Error message

## cURL

```bash
curl --request GET \
  --url https://qstash-{region}.upstash.io/v2/flowControl/{flowControlKey} \
  --header 'Authorization: Bearer <token>'
```