Radar / AI coding tools / OpenAI MCP Extensions
OpenAI MCP Extensions
OpenAI's TypeScript and Python SDKs that add ChatGPT-native capabilities to MCP: sidebar apps, conversation panels, file-extension handlers, composer mentions, and rich forms.
Why it matters
Turns MCP from a chat-tool protocol into a first-class ChatGPT plugin platform: plugins can now live in the sidebar, inside conversations, and as file viewers, not just as tool calls.
What you could build with it
A small SaaS startup could build a ChatGPT sidebar plugin so users browse and insert their saved assets into conversations without leaving the chat window.
Does it hold up?
TypeScript and Python SDKs ship with a language-agnostic spec and a working Bits & Bolts demo plugin installable from the ChatGPT plugin directory; some entry points (file handlers, composer mentions) are desktop-only at launch. No independent developer reports yet.
Built with OpenAI MCP Extensions
- OpenAI MCP Extensions: bring your app into ChatGPT as a PluginManufact (independent technical writeup) · Deep dive into what MCP Extensions adds over MCP Apps: sidebar/thread/file entry points, composer mentions, setup flows, and why the framework is a toolkit for plugins rather than a plugin itself.
Learn more
First spotted on github: source.
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