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
| Name | Type | Required | Description |
|---|---|---|---|
| itemId | string | false | A unique ID of a Roblox item that is a collectible. |
| instanceId | string | false | A unique ID of an individual copy of a collectible with ownership tied to a group or user. |
| instanceState | string | false | The instance state of this specific Collectible Item Instance which affects whether it can be resold or traded. |
| serialNumber | integer | false | If 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."
}