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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/users/{userId}/universes/{universeId} — openapi

Creates the following between a user with userId and universe with universeId

Endpoint

Method: POST

Path: /v1/users/{userId}/universes/{universeId}

Servers:

Parameters

NameLocationRequiredDescription
userIdpathtrue
universeIdpathtrue
[
  {
    "in": "path",
    "name": "userId",
    "description": "",
    "required": true,
    "schema": {
      "type": "integer",
      "format": "int64"
    }
  },
  {
    "in": "path",
    "name": "universeId",
    "description": "",
    "required": true,
    "schema": {
      "type": "integer",
      "format": "int64"
    }
  }
]

Responses

StatusDescription
200OK
400The user has reached the limit of number of followed universes.
4010: Authorization has been denied for this request.
403User is not authorized for this action. 0: Token Validation Failed
{
  "200": {
    "description": "OK",
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Followings.Api.Models.UserFollowingUniverseResponse"
        }
      },
      "text/json": {
        "schema": {
          "$ref": "#/components/schemas/Roblox.Followings.Api.Models.UserFollowingUniverseResponse"
        }
      }
    }
  },
  "400": {
    "description": "The user has reached the limit of number of followed universes."
  },
  "401": {
    "description": "0: Authorization has been denied for this request."
  },
  "403": {
    "description": "User is not authorized for this action.\r\n0: Token Validation Failed"
  }
}

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": [
    "Interactions",
    "Universes",
    "Users"
  ],
  "summary": "Creates the following between a user with userId and universe with universeId",
  "parameters": [
    {
      "in": "path",
      "name": "userId",
      "description": "",
      "required": true,
      "schema": {
        "type": "integer",
        "format": "int64"
      }
    },
    {
      "in": "path",
      "name": "universeId",
      "description": "",
      "required": true,
      "schema": {
        "type": "integer",
        "format": "int64"
      }
    }
  ],
  "responses": {
    "200": {
      "description": "OK",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Roblox.Followings.Api.Models.UserFollowingUniverseResponse"
          }
        },
        "text/json": {
          "schema": {
            "$ref": "#/components/schemas/Roblox.Followings.Api.Models.UserFollowingUniverseResponse"
          }
        }
      }
    },
    "400": {
      "description": "The user has reached the limit of number of followed universes."
    },
    "401": {
      "description": "0: Authorization has been denied for this request."
    },
    "403": {
      "description": "User is not authorized for this action.\r\n0: Token Validation Failed"
    }
  },
  "servers": [
    {
      "url": "https://followings.roblox.com"
    }
  ],
  "x-roblox-engine-usability": {
    "apiKeyWithHttpService": false
  },
  "security": [
    {
      "roblox-legacy-cookie": []
    }
  ],
  "externalDocs": {
    "url": "https://create.roblox.com/docs/cloud/reference/features/interactions#followings_post_v1_users__userId__universes__universeId_"
  },
  "x-roblox-recommended-alternatives": [
    {
      "url": "https://apis.roblox.com/legacy-followings/v1/users/{userId}/universes/{universeId}",
      "httpMethod": "POST",
      "documentationUrl": "https://create.roblox.com/docs/cloud/reference/features/interactions#post_legacy_followings_v1_users__userId__universes__universeId_"
    }
  ]
}