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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.

InventoryItem_CollectibleDetails — openapi

Specific fields that are applicable to a collectible.

Properties

NameTypeRequiredDescription
itemIdstringfalseA unique ID of a Roblox item that is a collectible.
instanceIdstringfalseA unique ID of an individual copy of a collectible with ownership tied to a group or user.
instanceStatestringfalseThe instance state of this specific Collectible Item Instance which affects whether it can be resold or traded.
serialNumberintegerfalseIf the asset is a Limited, a user-visible number that shows this item is the nth replica of the asset. Otherwise, this attribute will be omitted.

Complete Schema

{
  "type": "object",
  "properties": {
    "itemId": {
      "type": "string",
      "description": "A unique ID of a Roblox item that is a collectible."
    },
    "instanceId": {
      "type": "string",
      "description": "A unique ID of an individual copy of a collectible with ownership tied\r\nto a group or user."
    },
    "instanceState": {
      "enum": [
        "COLLECTIBLE_ITEM_INSTANCE_STATE_UNSPECIFIED",
        "AVAILABLE",
        "HOLD"
      ],
      "type": "string",
      "description": "The instance state of this specific Collectible Item Instance which\r\naffects whether it can be resold or traded.",
      "nullable": true
    },
    "serialNumber": {
      "type": "integer",
      "description": "If the asset is a Limited, a user-visible number that shows this item is\r\nthe nth replica of the asset. Otherwise, this attribute will be omitted.",
      "format": "int64",
      "nullable": true
    }
  },
  "additionalProperties": false,
  "description": "Specific fields that are applicable to a collectible."
}