# Sign in with ChatGPT

> Add ChatGPT sign-in to your website, plugin, or open-source client.

Use this as a compact map of Sign in with ChatGPT docs. Each page has a Markdown twin at `/siwc/<slug>.md`.

## Documentation sets
- [Combined Sign in with ChatGPT docs](https://developers.openai.com/siwc/llms-full.txt): Single-file Markdown export of Sign in with ChatGPT docs.

## ChatGPT plugin
- [In your ChatGPT plugin](https://developers.openai.com/siwc/chatgpt-plugin.md): Reuse Sign in with ChatGPT inside your plugin's connector authorization flow.

## Quickstart
- [Quickstart](https://developers.openai.com/siwc/quickstart.md): Choose a Sign in with ChatGPT integration for your website, plugin, or open-source client.

## Request Client Id
- [Request a client ID](https://developers.openai.com/siwc/request-client-id.md): Request a client ID for your Sign in with ChatGPT integration.

## ChatGPT plan usage
- [Overview](https://developers.openai.com/siwc/token-sharing-open-source.md): Understand ChatGPT plan usage, OAuth clients, host identifiers, and the path to a completed request.
- [Accounts and sessions](https://developers.openai.com/siwc/token-sharing-open-source/profiles-and-sessions.md): Manage ChatGPT accounts, renew access, sign out, and protect credentials.
- [Codex app-server](https://developers.openai.com/siwc/token-sharing-open-source/codex-app-server.md): Configure Codex app-server to use an OAuth access token authorized for ChatGPT plan usage.
- [Errors and recovery](https://developers.openai.com/siwc/token-sharing-open-source/errors-and-recovery.md): Handle declined consent, admission failures, Responses errors, and revoked sessions.
- [Models and inference](https://developers.openai.com/siwc/token-sharing-open-source/models-and-inference.md): List models and stream a Responses API request through completed inference.
- [Preview limitations](https://developers.openai.com/siwc/token-sharing-open-source/preview-limitations.md): Review Responses API requirements and Codex app-server behavior for ChatGPT plan usage.
- [Registration and sign-in](https://developers.openai.com/siwc/token-sharing-open-source/sign-in.md): Register an open-source client, validate the ID token and permissions, and store the user’s basic account info and credentials.
- [Self-hosted VMs](https://developers.openai.com/siwc/token-sharing-open-source/self-hosted-vms.md): Prepare a VM host ID and transfer protected SIWC credentials for the selected ChatGPT account.
- [Token reference](https://developers.openai.com/siwc/token-sharing-open-source/token-reference.md): Look up token-response fields, lifetimes, and access-token claims.

## UI/UX guidelines
- [UI/UX guidelines](https://developers.openai.com/siwc/ui-ux-guidelines.md): Design clear experiences for using a ChatGPT plan, managing usage, and choosing an eligible app plan.

## Website
- [On your website](https://developers.openai.com/siwc/website.md): Add Sign in with ChatGPT using Authorization Code with PKCE and OpenID Connect.