---
title: "GET /v2/username/isAvailable"
method: GET
path: "/v2/username/isAvailable"
tags: ["users", "username"]
---

# GET /v2/username/isAvailable

`GET /v2/username/isAvailable`

Check if an username is available for creation within Caliopen instance

## Query parameters

- `username` string, required

## Response `200`

availability state for requested username

- object
  - `username` string, required
  - `available` boolean, required

## Other responses

- `400` — malform request (probably missing 'username' query param)

---

[API](https://skmtc.net/caliopen/apis/caliopen-http-rest-api.md) · [All operations](https://skmtc.net/caliopen/apis/caliopen-http-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/caliopen/caliopen-http-rest-api/revisions/f32b5d08284d/schema)