Develop AI apps and agents with OpenAI best practices
Use OpenAI Developers to build AI applications and agents. Optimize your existing API integration with our latest models and best practices, and build multimodal experiences with voice and image models. More
Tools Changes data4 create_ get_ list_ start_
Skills 4 in the ChatGPT listing
Agents Build agent apps with the Agents API or Agents SDK. DevDay Guide Help with OpenAI DevDay attendance, onsite logistics, session schedules, personal plans, livestreams, recordings, and DevDay Exchanges. OpenAI API Troubleshooting Use when an OpenAI API request fails and Codex needs to classify the likely cause, explain the next step, and route to the right follow-up. OpenAI API Key Setup Use when Codex is asked to build, run, test, debug, or configure an OpenAI-backed or provider-unspecified AI app, UI, script, CLI, generator, or tool, especially requests phrased only as "using AI" or generators driven by forms/user input; also use for OPENAI_API_KEY or sk-proj setup. 