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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/passkey/finish-preauth-registration — openapi

Endpoint

Method: POST

Path: /v1/passkey/finish-preauth-registration

Servers:

Request Body

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

Responses

StatusDescription
200OK
4000: An unknown error occurred with the request.
4010: Authorization has been denied for this request. 0: An unknown error occurred with the request.
4030: Token Validation Failed 1: Reached limit of pass keys registered.
5000: An unknown error occurred with the request.
5032: Feature disabled.
 
{
  "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": "0: An unknown error occurred with the request."
  },
  "401": {
    "description": "0: Authorization has been denied for this request.\r\n0: An unknown error occurred with the request."
  },
  "403": {
    "description": "0: Token Validation Failed\r\n1: Reached limit of pass keys registered."
  },
  "500": {
    "description": "0: An unknown error occurred with the request."
  },
  "503": {
    "description": "2: Feature disabled."
  }
}

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"
  ],
  "requestBody": {
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.Request.FinishPasskeyPreauthRegistrationRequest"
        }
      },
      "text/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Authentication.Api.Models.Request.FinishPasskeyPreauthRegistrationRequest"
        }
      }
    },
    "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": "0: An unknown error occurred with the request."
    },
    "401": {
      "description": "0: Authorization has been denied for this request.\r\n0: An unknown error occurred with the request."
    },
    "403": {
      "description": "0: Token Validation Failed\r\n1: Reached limit of pass keys registered."
    },
    "500": {
      "description": "0: An unknown error occurred with the request."
    },
    "503": {
      "description": "2: Feature disabled."
    }
  },
  "servers": [
    {
      "url": "https://auth.roblox.com"
    }
  ],
  "x-roblox-engine-usability": {
    "apiKeyWithHttpService": false
  },
  "security": [
    {},
    {
      "roblox-legacy-cookie": []
    }
  ],
  "externalDocs": {
    "url": "https://create.roblox.com/docs/cloud/reference/features/accounts#auth_post_v1_passkey_finish_preauth_registration"
  }
}