Open AI: Apps SDK (developers.openai.com)

OpenAI released an Apps SDK for ChatGPT: a developer framework and set of guidelines for building apps that feel native inside the ChatGPT environment. The SDK bundles design components and conversational flow patterns, metadata standards for discovery and behavior, plus step‑by‑step instructions to create, configure and deploy an MCP server that connects your app with ChatGPT. It also codifies quality, safety and policy requirements, and includes security, privacy, and troubleshooting guidance to help apps meet OpenAI’s operational standards. For the AI/ML community this standardizes how third‑party features integrate with a leading conversational UI, lowering friction for developers to ship richer, more discoverable capabilities while ensuring consistent safety and user experience. Technically, developers will implement an MCP server endpoint and annotate apps with rich metadata so ChatGPT can surface and control app behavior; they must follow the SDK’s design primitives and policy checks to pass validation. The result is a scalable plugin-like ecosystem where conversational UX, metadata-driven discovery, and built‑in safety considerations make it easier to deploy production-grade, ChatGPT‑native applications.