OpenAI is allowing developers to submit third-party apps for ChatGPT after a review process. Approved apps will be integrated directly into the platform, making them easily accessible to users without extra installations. This move aims to create a structured marketplace for productivity and specialized tools.

OpenAI has introduced full Model Context Protocol (MCP) support in ChatGPT, allowing developers to use custom connectors for read and write actions within chats. This new feature, available in Developer Mode, enables integration with external systems and APIs, transforming ChatGPT into a programmable automation hub. Developers are advised to exercise caution due to the potential for prompt injection attacks and the risks associated with real write operations.