# Page Not Found

The URL `integrate-the-d1-sdk/getting-started/configuration/5.-authentication/broken-reference` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [5. Authentication](https://docs.payments.thalescloud.io/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/5.-authentication.md)
- [SDK login](https://docs.payments.thalescloud.io/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/5.-authentication/sdk-login.md)
- [Access token format](https://docs.payments.thalescloud.io/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/5.-authentication/access-token-format.md)
- [SDK logout](https://docs.payments.thalescloud.io/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/5.-authentication/sdk-logout.md)
- [Push notification configuration](https://docs.payments.thalescloud.io/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/4.-push-notifications/push-notification-configuration.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.payments.thalescloud.io/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/5.-authentication.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.payments.thalescloud.io/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.payments.thalescloud.io/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/click-to-pay/integrate-the-d1-sdk/getting-started/configuration/5.-authentication.md`).

You may also use `Accept: text/markdown` header for content negotiation.