# Page Not Found

The URL `api/authentication` does not exist.

You might be looking for one of these pages:
- [Authentication](https://docs.idosgames.com/api/api-v1/authentication.md)
- [Subscription](https://docs.idosgames.com/api/api-v1/subscription.md)
- [API v1](https://docs.idosgames.com/api/api-v1.md)
- [API v2](https://docs.idosgames.com/api/api-v2.md)
- [Spin](https://docs.idosgames.com/api/api-v1/spin.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/api/api-v1/authentication.md`)
- Use `Accept: text/markdown` header for content negotiation