# Page Not Found

The URL `features-setup/payment-gateway` does not exist.

You might be looking for one of these pages:
- [Stripe Payment Gateway](https://docs.lightningrails.com/features-setup/stripe-payment-gateway.md)
- [Open AI API](https://docs.lightningrails.com/features-setup/open-ai-api.md)
- [Search Engine Optimization](https://docs.lightningrails.com/features-setup/search-engine-optimization.md)
- [Admin Dashboard](https://docs.lightningrails.com/features-setup/markdown.md)
- [Automatic Emails](https://docs.lightningrails.com/features-setup/automatic-emails.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/features-setup/stripe-payment-gateway.md`)
- Use `Accept: text/markdown` header for content negotiation