# Sign in with ChatGPT

> Source: <https://developers.openai.com/siwc>
> Published: 2026-09-30 05:45:21+00:00

# Sign in with ChatGPT

Let users sign in with ChatGPT and use their ChatGPT plan for eligible AI requests in your app.

## Get started

## Explore the documentation

From account registration and sign-in to successful Responses API requests.

For the complete documentation index, see [llms.txt](https://developers.openai.com/llms.txt). Markdown versions of documentation pages are available by appending

   `.md` to the page URL.
  Primary navigation        

 DocsOverview

-  ## Agent Builder
-  ## Assistants API

-   [Overview](https://developers.openai.com/api/docs/guides/agents-api/overview)   
-   [Quickstart](https://developers.openai.com/api/docs/guides/agents-api/quickstart)   
-   [API reference](https://developers.openai.com/api/reference/resources/beta/subresources/agents)   
-   [Architecture](https://developers.openai.com/api/docs/guides/agents-api/architecture)   
-   [Configuring Agents](https://developers.openai.com/api/docs/guides/agents-api/configuration)   
-  ## Environments and sandboxes
-  ## Tools and integrations
-   [Multi-agent](https://developers.openai.com/api/docs/guides/agents-api/multi-agent)   
-   [Observability and usage](https://developers.openai.com/api/docs/guides/agents-api/observability)   
-   [Tracing](https://developers.openai.com/api/docs/guides/agents-api/tracing)   
-   [Errors and recovery](https://developers.openai.com/api/docs/guides/agents-api/errors)   
-   [Bedrock Managed Agents](https://developers.openai.com/api/docs/guides/agents-api/bedrock-managed-agents)   

DocsSign in with ChatGPT

-   [Overview](https://developers.openai.com/codex/security)   
-  ## Codex Security CLI
-   [TypeScript SDK](https://developers.openai.com/codex/security/sdk)   
-  ## Codex Security Cloud

DocsSelect...

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