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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/birthdate — openapi

Update the user's birthdate

Endpoint

Method: POST

Path: /v1/birthdate

Servers:

Request Body

The Roblox.Users.Api.BirthdateRequest

{
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Roblox.Users.Api.BirthdateRequest"
      }
    },
    "text/json": {
      "schema": {
        "$ref": "#/components/schemas/Roblox.Users.Api.BirthdateRequest"
      }
    }
  },
  "description": "The Roblox.Users.Api.BirthdateRequest",
  "required": true
}

Responses

StatusDescription
200OK
4001: User not found. 4: The birthdate provided is invalid. 8: Password is incorrect.
4010: Authorization has been denied for this request.
4030: Token Validation Failed 2: PIN is locked. 5: Invalid birthdate change.
5000: An unknown error occured. 5: Invalid birthdate change.
 
{
  "200": {
    "description": "OK",
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Web.WebAPI.ApiEmptyResponseModel"
        }
      },
      "text/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Web.WebAPI.ApiEmptyResponseModel"
        }
      }
    }
  },
  "400": {
    "description": "1: User not found.\r\n4: The birthdate provided is invalid.\r\n8: Password is incorrect."
  },
  "401": {
    "description": "0: Authorization has been denied for this request."
  },
  "403": {
    "description": "0: Token Validation Failed\r\n2: PIN is locked.\r\n5: Invalid birthdate change."
  },
  "500": {
    "description": "0: An unknown error occured.\r\n5: Invalid birthdate change."
  }
}

Authentication

{
  "security": [
    {
      "roblox-legacy-cookie": []
    }
  ],
  "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": "Update the user's birthdate",
  "requestBody": {
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Users.Api.BirthdateRequest"
        }
      },
      "text/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Users.Api.BirthdateRequest"
        }
      }
    },
    "description": "The Roblox.Users.Api.BirthdateRequest",
    "required": true
  },
  "responses": {
    "200": {
      "description": "OK",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Roblox.Web.WebAPI.ApiEmptyResponseModel"
          }
        },
        "text/json": {
          "schema": {
            "$ref": "#/components/schemas/Roblox.Web.WebAPI.ApiEmptyResponseModel"
          }
        }
      }
    },
    "400": {
      "description": "1: User not found.\r\n4: The birthdate provided is invalid.\r\n8: Password is incorrect."
    },
    "401": {
      "description": "0: Authorization has been denied for this request."
    },
    "403": {
      "description": "0: Token Validation Failed\r\n2: PIN is locked.\r\n5: Invalid birthdate change."
    },
    "500": {
      "description": "0: An unknown error occured.\r\n5: Invalid birthdate change."
    }
  },
  "servers": [
    {
      "url": "https://users.roblox.com"
    }
  ],
  "x-roblox-engine-usability": {
    "apiKeyWithHttpService": false
  },
  "security": [
    {
      "roblox-legacy-cookie": []
    }
  ],
  "externalDocs": {
    "url": "https://create.roblox.com/docs/cloud/reference/features/accounts#users_post_v1_birthdate"
  }
}