openai/mcp-extensions
Build plugins that feel like native, first-class features of ChatGPT.
From the publisher
README & documentation
Source previewRead the project’s overview, installation instructions and usage examples. The original README is the source of truth.
OpenAI MCP Extensions adds ChatGPT-specific capabilities to MCP so developers can build plugins that feel like native, first-class features. All examples below use the Bits & Bolts plugin, which you can try by installing the plugin. Allow users to access your app from the sidebar. Render custom file viewers when users open a supported file type. Let users search your plugin’s resources from the composer and add references to a message. Let users select a CAD part…
Read the full README ↗ · Preview checked 2026-09-30T13:00:18.135Z
Inside the original README — Document outline
- OpenAI MCP Extensions
- Showcase
- Sidebar entrypoints
- File extension handlers
- Composer mentions
- Extended forms
- Get started
- 0. Try it out
- 1. Create a plugin
- 2. Add the SDKs to your MCP server
- 3. Explore supported extensions
- License
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Documentation belongs to its respective authors. Reported project/model license: Apache-2.0. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.
What this repository does
Build plugins that feel like native, first-class features of ChatGPT.
Repository facts
- Owner
- openai
- Primary language
- TypeScript
- Stars
- 351
- Forks
- 16
- Open issues + pull requests
- 6
- License
- Apache-2.0
- Archived
- No
- Default branch
- main
- Created
- 2026-09-29T00:45:42.000Z
- Last push
- 2026-09-29T19:30:39.000Z
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