---
title: "Get Flow Control Key"
method: GET
path: "/v2/flowControl/{flowControlKey}"
tags: ["Flow Control"]
---

# Get Flow Control Key

`GET /v2/flowControl/{flowControlKey}`

## Request

- Base URL: `https://qstash-eu-central-1.upstash.io`
- URL: `https://qstash-eu-central-1.upstash.io/v2/flowControl/{flowControlKey}`
- Auth: one of:
  - HTTP bearer
  - API key in query parameter `qstash_token`
- TypeScript: <https://skmtc.dev/upstash/apis/upstash-workflow-rest-api/docs/v2/flowControl/:flowControlKey/get.ts> (a function with typed inputs; its response is checked against the schema)

Get details of a specific Flow Control key

## Path parameters

- `flowControlKey` string, required

## Response `200`

Flow control key details

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

## Other responses

- `404`: Flow Control key not found

---

[API](https://skmtc.dev/upstash/apis/upstash-workflow-rest-api.md) - [All operations](https://skmtc.dev/upstash/apis/upstash-workflow-rest-api/llms.txt) - [OpenAPI document](https://skmtc.dev/upstash/apis/upstash-workflow-rest-api/revisions/251bee05a7ec?raw)