---
title: "Tries to get a valid username if the current username is taken This is a POST request and explicitly does not receive the parameter values from the query"
method: POST
path: "/v1/validators/username"
tags: ["Accounts"]
---

# Tries to get a valid username if the current username is taken This is a POST request and explicitly does not receive the parameter values from the query

`POST /v1/validators/username`

## Request body

- RobloxAuthenticationApiModelsRecommendedUsernameRequest
  - `username` string
  - `birthday` string, date-time

## Response `200`

OK

- RobloxAuthenticationApiModelsRecommendedUsernameResponse
  - `didGenerateNewUsername` boolean
  - `suggestedUsernames` string[]

## Other responses

- `403` — 0: Token Validation Failed

## Changes

- **2026-09-03** `d9b4ae8b3380` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/roblox/apis/roblox-api/changes/v1/validators/username/post.md)

---

[API](https://skmtc.dev/roblox/apis/roblox-api.md) · [All operations](https://skmtc.dev/roblox/apis/roblox-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/roblox/roblox-api/revisions/d9b4ae8b3380/schema)