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Source: Roblox Creator Hub · CC BY 4.0 · View source · Code samples: MIT Imported 2026-10-03. Formatting adapted for this site.

POST /v1/usernames/recover — openapi

Sends an email of all accounts belonging to an email

Endpoint

Method: POST

Path: /v1/usernames/recover

Servers:

Request Body

{
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameRequest"
      }
    },
    "text/json": {
      "schema": {
        "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameRequest"
      }
    }
  },
  "required": true
}

Responses

StatusDescription
200OK
40020: Invalid Email 21: Invalid Phone 23: No Account Found
4030: Token Validation Failed 11: Too many attempts. Please wait a bit.
5000: An unexpected error occurred.
{
  "200": {
    "description": "OK",
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameResponse"
        }
      },
      "text/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameResponse"
        }
      }
    }
  },
  "400": {
    "description": "20: Invalid Email\r\n21: Invalid Phone\r\n23: No Account Found"
  },
  "403": {
    "description": "0: Token Validation Failed\r\n11: Too many attempts. Please wait a bit."
  },
  "500": {
    "description": "0: An unexpected error occurred."
  }
}

Authentication

{
  "security": [
    {}
  ],
  "securitySchemes": {
    "roblox-api-key": {
      "type": "apiKey",
      "description": "A configurable key that allows granular access to Roblox resources. See https://create.roblox.com/docs/cloud/auth/api-keys for more information.",
      "name": "x-api-key",
      "in": "header"
    },
    "roblox-legacy-cookie": {
      "type": "apiKey",
      "description": "A browser cookie that represents the identity of a Roblox user. DO NOT SHARE THIS. Sharing this will allow someone to log in as you and to steal your Robux and items. We do not recommend using cookies to call endpoints. When possible, use API keys with the x-api-key header or OAuth 2.0 instead for authentication.",
      "in": "cookie",
      "name": ".ROBLOSECURITY"
    },
    "roblox-oauth2": {
      "type": "oauth2",
      "description": "Build or authorize apps to access Roblox resources. See https://create.roblox.com/docs/cloud/auth/oauth2-overview for more information.",
      "flows": {
        "authorizationCode": {
          "authorizationUrl": "https://apis.roblox.com/oauth/v1/authorize",
          "tokenUrl": "https://apis.roblox.com/oauth/v1/token",
          "refreshUrl": "https://apis.roblox.com/oauth/v1/token",
          "scopes": {}
        }
      }
    }
  }
}

Complete Operation Definition

{
  "tags": [
    "Accounts"
  ],
  "summary": "Sends an email of all accounts belonging to an email",
  "requestBody": {
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameRequest"
        }
      },
      "text/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameRequest"
        }
      }
    },
    "required": true
  },
  "responses": {
    "200": {
      "description": "OK",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameResponse"
          }
        },
        "text/json": {
          "schema": {
            "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.RecoverUsernameResponse"
          }
        }
      }
    },
    "400": {
      "description": "20: Invalid Email\r\n21: Invalid Phone\r\n23: No Account Found"
    },
    "403": {
      "description": "0: Token Validation Failed\r\n11: Too many attempts. Please wait a bit."
    },
    "500": {
      "description": "0: An unexpected error occurred."
    }
  },
  "servers": [
    {
      "url": "https://auth.roblox.com"
    }
  ],
  "x-roblox-engine-usability": {
    "apiKeyWithHttpService": false
  },
  "security": [
    {}
  ],
  "externalDocs": {
    "url": "https://create.roblox.com/docs/cloud/reference/features/accounts#auth_post_v1_usernames_recover"
  }
}