# Page Not Found

The URL `how-to/api-reference-btc/ninjapay:/pay` does not exist.

You might be looking for one of these pages:
- [NinjaAuth](https://ninjapay.gitbook.io/ninjapay-api-docs/how-to/api-reference-btc/ninjaauth.md)
- [Send Payment](https://ninjapay.gitbook.io/ninjapay-api-docs/how-to/api-reference-btc/send-payment.md)
- [Ninjapay URI Intent](https://ninjapay.gitbook.io/ninjapay-api-docs/how-to/api-reference-btc/ninjapay-uri-intent.md)
- [Check Payment](https://ninjapay.gitbook.io/ninjapay-api-docs/how-to/api-reference-btc/check-payment.md)
- [Paywalls](https://ninjapay.gitbook.io/ninjapay-api-docs/how-to/api-reference-upi/plugins/paywalls.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/ninjapay-api-docs/how-to/api-reference-btc/ninjaauth.md`)
- Use `Accept: text/markdown` header for content negotiation