---
title: "Check whether flow exists"
method: GET
path: "/flow/exists/{name}/{version}"
tags: ["flow"]
---

# Check whether flow exists

`GET /flow/exists/{name}/{version}`

Checks whether a flow with the given name and (external) version exists.

## Path parameters

- `name` string, required
- `version` string, required

## Query parameters

- `api_key` string, required

## Response `200`

A list of flows

- object
  - `flow_exists` object
    - `exists` string — true or false
    - `id` string — The id of the flow with the given name and (external) version

## Other responses

- `330` — Mandatory fields not present. Please provide name and external_version.

## Changes

- **2018-01-17** `2209d99ea36e` — 1 breaking, 2 info
  - the `query` request parameter `api_key` became required
  - added the non-success response with the status `330`
  - removed the non-success response with the status `412`

[Change history](https://skmtc.dev/openml/apis/openml-api/changes/flow/exists/:name/:version/get.md)

---

[API](https://skmtc.dev/openml/apis/openml-api.md) · [All operations](https://skmtc.dev/openml/apis/openml-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openml/openml-api/revisions/2209d99ea36e/schema)