{"slug": "openai-mcp-extensions", "title": "OpenAI MCP Extensions", "summary": "OpenAI released MCP Extensions, an open-source project that adds ChatGPT-specific capabilities to the Model Context Protocol so developers can build plugins that behave like native features. The extensions let plugins appear in the ChatGPT sidebar, render custom file viewers for supported file types, let users search a plugin's resources from the composer and add references to a message, and support thumbnail-based selection such as picking a CAD part. The project ships TypeScript and Python SDKs — `@openai/mcp-extensions` for MCP servers and Apps, and `openai-mcp-extensions` for MCP servers — under the Apache License 2.0.", "body_md": "OpenAI MCP Extensions adds ChatGPT-specific capabilities to MCP so developers can build plugins that feel like native, first-class features.\n\nAll examples below use the Bits & Bolts plugin, which you can try by [installing the plugin](#0-try-it-out).\n\nAllow users to access your app from the sidebar.\n\nRender custom file viewers when users open a supported file type.\n\nLet users search your plugin’s resources from the composer and add references to a message.\n\nLet users select a CAD part using thumbnail choices.\n\nInstall the Bits & Bolts Remote plugin:\n\n1. \nInstall [Bits & Bolts Remote from the plugin directory](https://chatgpt.com/plugins/plugin_asdk_app_6abadab6e7d881919e7491d52c7846e8) .\n2. \nSelect **Bits & Bolts Remote** in the sidebar to open the**Parts Library** .\n\nRead the [plugin documentation](https://developers.openai.com/codex/build-plugins) about how to create a plugin. Once you have a plugin…\n\nFollow the SDK installation instructions for the current source:\n\n- [TypeScript](https://github.com/openai/mcp-extensions/blob/main/typescript/README.md#installation) :`@openai/mcp-extensions` for MCP servers and Apps.\n- [Python](https://github.com/openai/mcp-extensions/blob/main/python/README.md#installation) :`openai-mcp-extensions` for MCP servers.\n\nRead the [spec](https://github.com/openai/mcp-extensions/blob/main/docs/spec.md) to learn more about supported extensions.\n\nThis project is licensed under the [Apache License 2.0](https://github.com/openai/mcp-extensions/blob/main/LICENSE).", "url": "https://wpnews.pro/news/openai-mcp-extensions", "canonical_source": "https://github.com/openai/mcp-extensions", "published_at": "2026-09-30 17:08:04+00:00", "updated_at": "2026-09-30 17:19:25.957308+00:00", "lang": "en", "topics": ["agent-protocols", "ai-products", "developer-tools", "ai-agents"], "entities": ["OpenAI", "ChatGPT", "Model Context Protocol", "@openai/mcp-extensions", "openai-mcp-extensions", "Bits & Bolts"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/openai-mcp-extensions", "markdown": "https://wpnews.pro/news/openai-mcp-extensions.md", "text": "https://wpnews.pro/news/openai-mcp-extensions.txt", "jsonld": "https://wpnews.pro/news/openai-mcp-extensions.jsonld"}}