mcp-extensions

# OpenAI MCP Extensions OpenAI MCP Extensions adds ChatGPT-specific capabilities to MCP so developers can build plugins that feel like native, first-class features. ## Try it out 1. Install [Bits & Bolts Remote](https://chatgpt.com/plugins/plugin_asdk_app_6abadab6e7d881919e7491d52c7846e8). 2. Select the **Bits & Bolts** icon in the sidebar to open the **Parts Library**. 3. Open **Extensions walkthrough** to explore a demo of each major extension.  ## Showcase ### [Sidebar entrypoints](docs/spec.md#mcp-app-entrypoints) Allow users to access your app from the sidebar.  ### [File extension handlers](docs/spec.md#file-extension-entrypoint) Render custom file viewers when users open a supported file type.  ### [Composer mentions](docs/spec.md#composer-at-mentions) Let users search your plugin’s resources from the composer and add references to a message.  ### [Extended forms](docs/spec.md#openai-form-elicitation) Let users select a CAD part using thumbnail choices.  ## Get started ### 1. Integrate extensions Ask `@Plugin Creator` in Codex to build a new plugin or improve an existing one for you. ### 2. Install the SDK - [TypeScript](typescript/README.md#installation): `@openai/mcp-extensions` for MCP servers and Apps. - [Python](python/README.md#installation): `openai-mcp-extensions` for MCP servers. ### 3. Learn more - [docs/spec.md](docs/spec.md) lists all supported extensions. - [docs/patterns.md](docs/patterns.md) covers best practices. - [CHANGELOG.md](CHANGELOG.md) lists API changes. - [Bits & Bolts source](plugins/bits-and-bolts/) shows how to integrate extensions in practice. ### 4. Provide feedback Notice any gaps in extensions for your plugin? Submit feedback [here](https://github.com/openai/mcp-extensions/issues/new?template=request.yml). ## License This project is licensed under the [Apache License 2.0](LICENSE).