← all releases
OpenAI·Oct 2, 2026·v0.1.0·open source
MCP Extensions
OpenAI MCP Extensions is a developer toolkit that adds ChatGPT-specific capabilities to the Model Context Protocol (MCP). It enables developers to integrate plugins directly into the ChatGPT interface, allowing features like sidebar entry points, custom file viewers, and composer mentions to feel like native, first-class elements of the user experience.
MCPChatGPTPluginsDeveloper Tools
overview
OpenAI MCP Extensions is a developer toolkit that adds ChatGPT-specific capabilities to the Model Context Protocol (MCP). It enables developers to integrate plugins directly into the ChatGPT interface, allowing features like sidebar entry points, custom file viewers, and composer mentions to feel like native, first-class elements of the user experience.
key features
- 01Sidebar Entrypoints
- 02Custom File Viewers
- 03Composer Mentions
- 04Extended Forms
- 05Bidirectional Context
related productsbrowse all →