# Page Not Found

The URL `authentication/basic-key-based-authentication` does not exist.

You might be looking for one of these pages:
- [OAuth Authentication](https://devhub.autograb.com/authentication/oauth-authentication.md)
- [API Key](https://devhub.autograb.com/authentication/api-key.md)
- [Residual Valuations](https://devhub.autograb.com/valuation/residual-valuations.md)
- [Max Offer Configuration](https://devhub.autograb.com/valuation/max-offer-configuration.md)
- [API Test Cases](https://devhub.autograb.com/autograb-basics/api-test-cases.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://devhub.autograb.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://devhub.autograb.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/authentication/oauth-authentication.md`)
- Use `Accept: text/markdown` header for content negotiation