[3] [CITE@en[ext-apps/specification/2026-01-26/apps.mdx at main · modelcontextprotocol/ext-apps · GitHub]], [TIME[2026-06-17T16:36:00.000Z]] <https://github.com/modelcontextprotocol/ext-apps/blob/main/specification/2026-01-26/apps.mdx>

[2] 
[CITE@en[Overview | @modelcontextprotocol/ext-apps - v1.1.2]], [TIME[2026-06-05T12:08:46.000Z]], [TIME[2026-06-17T16:35:27.928Z]] <https://apps.extensions.modelcontextprotocol.io/api/documents/Overview.html#ui-resources>


[1] [CITE@en[registerAppResource | MCP Apps]], [TIME[2026-06-05T12:08:46.000Z]], [TIME[2026-06-17T16:31:47.531Z]] <https://apps.extensions.modelcontextprotocol.io/api/functions/server-helpers.registerAppResource.html>

[4] 
[CITE@en[getToolUiResourceUri | MCP Apps]], [TIME[2026-06-05T12:08:46.000Z]], [TIME[2026-06-17T16:36:22.443Z]] <https://apps.extensions.modelcontextprotocol.io/api/functions/app-bridge.getToolUiResourceUri.html>

[5] 
[CITE@en[RESOURCE_URI_META_KEY | MCP Apps]], [TIME[2026-06-05T12:08:46.000Z]], [TIME[2026-06-17T16:36:43.745Z]] <https://apps.extensions.modelcontextprotocol.io/api/variables/app.RESOURCE_URI_META_KEY.html>