This article outlines how developers can monetize their ChatGPT applications using external checkout methods. It details the process for implementing Instant Checkout for select partners and provides a step-by-step guide for setting up checkout sessions, handling payments, and managing error responses.

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.

OpenAI is inviting developers to express interest in integrating ChatGPT account sign-ins for third-party applications. Interested developers can fill out a form to provide details about their app and its user base for potential collaboration.