Source: Roblox Creator Hub · CC BY 4.0 · View source · Code samples: MIT Imported 2026-10-03. Formatting adapted for this site.
POST /legacy-game-internationalization/v1/game-thumbnails/games/{gameId}/language-codes/{languageCode}/alt-text — openapi
Updates the game thumbnail alt text.
Endpoint
Method: POST
Path: /legacy-game-internationalization/v1/game-thumbnails/games/{gameId}/language-codes/{languageCode}/alt-text
Servers:
https://apis.roblox.com
Parameters
| Name | Location | Required | Description |
|---|---|---|---|
| gameId | path | true | The game identifier. |
| languageCode | path | true | The language code. |
[
{
"in": "path",
"name": "gameId",
"description": "The game identifier.",
"required": true,
"schema": {
"type": "integer",
"format": "int64"
}
},
{
"in": "path",
"name": "languageCode",
"description": "The language code.",
"required": true,
"schema": {
"type": "string"
}
}
] Request Body
The game thumbnail alt text update request.
{
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Roblox.GameInternationalization.Api.UpdateThumbnailAltTextRequest"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/Roblox.GameInternationalization.Api.UpdateThumbnailAltTextRequest"
}
}
},
"description": "The game thumbnail alt text update request.",
"required": true
} Responses
| Status | Description |
|---|---|
| 200 | OK |
| 400 | 14: Invalid game id 19: New name is null or whitespaces or new name/description is too long 20: New name or description is moderated 22: Invalid language code 26: You can't update translations for source language 45: File uploaded does not match known image format 53: Language is not supported for the game. |
| 401 | 0: Authorization has been denied for this request. |
| 403 | 0: Token Validation Failed 18: You do not have permission to manage this game |
| 429 | 24: Too many attempts.Please try again later. |
| 500 | 0: An unknown error occurred. 88: Failed to filter text |
| 503 | 17: Feature is disabled |
{
"200": {
"description": "OK",
"content": {
"application/json": {
"schema": {
"type": "string"
}
},
"text/json": {
"schema": {
"type": "string"
}
}
}
},
"400": {
"description": "14: Invalid game id\r\n19: New name is null or whitespaces or new name/description is too long\r\n20: New name or description is moderated\r\n22: Invalid language code\r\n26: You can't update translations for source language\r\n45: File uploaded does not match known image format\r\n53: Language is not supported for the game."
},
"401": {
"description": "0: Authorization has been denied for this request."
},
"403": {
"description": "0: Token Validation Failed\r\n18: You do not have permission to manage this game"
},
"429": {
"description": "24: Too many attempts.Please try again later."
},
"500": {
"description": "0: An unknown error occurred.\r\n88: Failed to filter text"
},
"503": {
"description": "17: Feature is disabled"
}
} Authentication
{
"security": [
{
"roblox-api-key": []
},
{
"roblox-oauth2": []
}
],
"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": {}
}
}
}
}
} Related Schemas
Complete Operation Definition
{
"tags": [
"Localization",
"Thumbnails",
"Universes"
],
"summary": "Updates the game thumbnail alt text.",
"parameters": [
{
"in": "path",
"name": "gameId",
"description": "The game identifier.",
"required": true,
"schema": {
"type": "integer",
"format": "int64"
}
},
{
"in": "path",
"name": "languageCode",
"description": "The language code.",
"required": true,
"schema": {
"type": "string"
}
}
],
"requestBody": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Roblox.GameInternationalization.Api.UpdateThumbnailAltTextRequest"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/Roblox.GameInternationalization.Api.UpdateThumbnailAltTextRequest"
}
}
},
"description": "The game thumbnail alt text update request.",
"required": true
},
"responses": {
"200": {
"description": "OK",
"content": {
"application/json": {
"schema": {
"type": "string"
}
},
"text/json": {
"schema": {
"type": "string"
}
}
}
},
"400": {
"description": "14: Invalid game id\r\n19: New name is null or whitespaces or new name/description is too long\r\n20: New name or description is moderated\r\n22: Invalid language code\r\n26: You can't update translations for source language\r\n45: File uploaded does not match known image format\r\n53: Language is not supported for the game."
},
"401": {
"description": "0: Authorization has been denied for this request."
},
"403": {
"description": "0: Token Validation Failed\r\n18: You do not have permission to manage this game"
},
"429": {
"description": "24: Too many attempts.Please try again later."
},
"500": {
"description": "0: An unknown error occurred.\r\n88: Failed to filter text"
},
"503": {
"description": "17: Feature is disabled"
}
},
"x-roblox-stability": "EXPERIMENTAL",
"x-roblox-rate-limits": {
"perApiKeyOwner": {
"period": "MINUTE",
"maxInPeriod": 100
},
"perOauth2Authorization": {
"period": "MINUTE",
"maxInPeriod": 100
}
},
"x-roblox-engine-usability": {
"apiKeyWithHttpService": false
},
"security": [
{
"roblox-api-key": []
},
{
"roblox-oauth2": []
}
],
"x-roblox-scopes": [
{
"name": "legacy-universe:manage"
}
],
"externalDocs": {
"url": "https://create.roblox.com/docs/cloud/reference/features/localization#post_legacy_game_internationalization_v1_game_thumbnails_games__gameId__language_codes__languageCode__alt_text"
}
}