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ChatGPT Plugin Extensions: Sidebar Apps, Panels and File Editors

ChatGPT plugins can now add sidebar apps, side panels, file editors and native forms. How openai/ui entrypoints work, with type-checked code.

October 17, 2026•14 min read

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MCP Apps vs Tool Calling vs Standalone UIs: Interactive Interfaces for Agent Tools Compared

MCP Apps vs tool calling vs standalone web UIs: how sandboxed interactive UIs for MCP servers compare to the other two, and when to use each approach.

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MCP APPS

ChatGPT Plugin Extensions: Sidebar Apps, Panels and File Editors

MCP Apps vs Tool Calling vs Standalone UIs: Interactive Interfaces for Agent Tools Compared

Keep exploring MCP Apps

MCP APPS

ChatGPT Plugin Extensions: Sidebar Apps, Panels and File Editors

MCP Apps vs Tool Calling vs Standalone UIs: Interactive Interfaces for Agent Tools Compared

Keep exploring MCP Apps

MCP APPS

ChatGPT Plugin Extensions: Sidebar Apps, Panels and File Editors

MCP Apps vs Tool Calling vs Standalone UIs: Interactive Interfaces for Agent Tools Compared

Keep exploring MCP Apps

Get Smarter About AI Dev

MCP APPS

ChatGPT Plugin Extensions: Sidebar Apps, Panels and File Editors

MCP Apps vs Tool Calling vs Standalone UIs: Interactive Interfaces for Agent Tools Compared

Keep exploring MCP Apps

Get Smarter About AI Dev