[1] [CITE@en[Migrate OpenAI App | @modelcontextprotocol/ext-apps - v1.1.2]], [TIME[2026-06-05T12:08:46.000Z]], [TIME[2026-06-17T16:24:38.154Z]] <https://apps.extensions.modelcontextprotocol.io/api/documents/Migrate_OpenAI_App.html>

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,*OpenAI Apps SDK 	,*MCP Apps SDK
,UI Resource MIME type: [CODE[text/html+skybridge]], 	UI Resource MIME type: [CODE[text/html;profile=mcp-app]]

[2] 
[CITE@en[registerAppResource | MCP Apps]], [TIME[2026-06-05T12:08:46.000Z]], [TIME[2026-06-17T16:30:39.636Z]] <https://apps.extensions.modelcontextprotocol.io/api/functions/server-helpers.registerAppResource.html>