---
title: "Register"
method: POST
path: "/auth/register"
tags: ["auth", "authentication"]
---

# Register

`POST /auth/register`

Register a new user with optional invite code for extended trial

## Request body

- RegistrationRequest
  - `username` string
  - `email` string, email, required
  - `password` string, required
  - `inviteCode` string
  - `acceptTerms` boolean
  - `acceptPrivacy` boolean
  - `acceptDataProcessing` boolean
  - `confirmAge` boolean
  - `acceptBehaviorGuidelines` boolean
  - `marketingEmailsEnabled` boolean
  - `productEmailsEnabled` boolean
  - `device_fingerprint` string
  - `ui_language` string
  - `anonymous_user_id` string, nullable
  - `target_languages` unknown[]
    - unknown
  - `language_proficiency` object
  - `native_languages` unknown[]
    - unknown
  - `native_language_proficiency` object
  - `learning_reason` unknown
  - `practice_method` string, nullable
  - `name` string, nullable
  - `signup_utm_source` string, nullable
  - `signup_utm_medium` string, nullable
  - `signup_utm_campaign` string, nullable
  - `signup_utm_content` string, nullable
  - `signup_utm_term` string, nullable
  - `signup_gclid` string, nullable
  - `signup_referrer` string, nullable
  - `referral_code` string, nullable
  - `invite_token` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

> 20 revisions in range; 1 not diffed.

- **2026-09-11** `a84c332ab1ba` — 5 breaking, 2 warning, 29 info
  - added the new required request property `email`
  - added the new required request property `password`
  - removed `subschema #1, subschema #2` from the request body `anyOf` list
  - request body became required
  - …32 more
- **2026-09-10** `c24f9b438b97` — 3 breaking, 30 warning, 3 info
  - added the new required `query` request parameter `activity_type`
  - added the new required `query` request parameter `user_id`
  - the request's body type changed from `object` to no type
  - removed the request property `acceptBehaviorGuidelines`
  - …32 more

[Change history](https://skmtc.dev/fluentea/apis/aurqa-language-learning-platform-refactored/changes/auth/register/post.md)

---

[API](https://skmtc.dev/fluentea/apis/aurqa-language-learning-platform-refactored.md) · [All operations](https://skmtc.dev/fluentea/apis/aurqa-language-learning-platform-refactored/llms.txt) · [OpenAPI document](https://skmtc.dev/fluentea/apis/aurqa-language-learning-platform-refactored/revisions/ee945980cf00?raw)