https://blog.modelcontextprotocol.io/posts/2025-11-21-mcp-apps/ https://blog.modelcontextprotocol.io/posts/2025-11-21-mcp-ap... It’s going to be built into MCP

https://blog.modelcontextprotocol.io/posts/2025-11-21-mcp-apps/ https://blog.modelcontextprotocol.io/posts/2025-11-21-mcp-ap... It’s going to be built into MCP and will be supported by Anthropic and OpenAI or anyone else that supports this mcp spec