How OpenAI’s Core Experimentation team uses Codex to remove unused code, clean up stale experiments, and improve CI.

When a business depends on an AI workflow, even a short provider outage can delay decisions or interrupt services. We’ve been working with financial services customers building agentic applications ...

Sign-in with ChatGPT Integrate ChatGPT sign-in and optional ChatGPT plan usage into your app.

A driver translates allowed tool calls into actions in a browser or desktop you control. Use a browser driver when your application can report page text, controls, and tabs. Use a computer driver when ...

Register an open-source client, validate the ID token and permissions, and store the user’s basic account info and credentials.

Review Responses API requirements and Codex app-server behavior for ChatGPT plan usage.

On your website Add a familiar sign-in option. Authenticate users and create a session in your application. In your ChatGPT plugin Accelerate your plugin's authentication flow with Sign in with ...

Use this guide when you run an open-source app on a remote virtual machine (VM). 1. Create a host ID for the VM Before importing credentials, create and persist a stable ext_agent_host_id for the VM.

Help users understand when your app uses their ChatGPT plan, where to manage usage, and what to do when they reach a limit. Use these guidelines for ChatGPT plan usage and the approved sign-in button ...

Connect your Model Context Protocol (MCP) server to ChatGPT as a plugin. ChatGPT supports both read and write tools from your server. Only connect to MCP servers you trust. An untrusted server may ...

Using Codex app-server If your app uses Codex app-server, configure it to send inference requests to the Responses API using an OAuth access token authorized for the user’s ChatGPT plan. You can use ...