---
title: "Initiates identifier-first login flow by returning a list of login methods for user(s)."
method: POST
path: "/v1/identity/initialize-login"
tags: ["Accounts"]
---

# Initiates identifier-first login flow by returning a list of login methods for user(s).

`POST /v1/identity/initialize-login`

## Request body

- RobloxAuthenticationApiModelsRequestInitializeLoginRequest
  - `ctype` 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10, required
  - `cvalue` string, required
  - `captchaId` string
  - `captchaToken` string
  - `captchaProvider` string
  - `challengeId` string

## Response `200`

OK

- RobloxAuthenticationApiModelsResponseInitializeLoginResponse
  - `loginMethods` RobloxAuthenticationApiModelsLoginMethodModel[]
    - `method` 0 | 1 | 2 — ['EmailOtp' = 0, 'Passkey' = 1, 'Password' = 2]
    - `priority` integer

## Other responses

- `400` — 3: User identifier and type are required.
- `403` — 0: Token Validation Failed 2: Invalid user identifier. 4: No login methods available. Please use account recovery.
- `500` — 0: An unknown error occurred.
- `503` — 1: This feature is disabled.

## Changes

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

[Change history](https://skmtc.dev/roblox/apis/roblox-api/changes/v1/identity/initialize-login/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)