> For the complete documentation index, see [llms.txt](https://docs.fns.run/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fns.run/advanced-use-cases.md).

# Advanced Use Cases

- [Subscription Billing](https://docs.fns.run/advanced-use-cases/subscription-billing.md)
- [Ride Hailing](https://docs.fns.run/advanced-use-cases/ride-hailing.md)
- [Food Delivery](https://docs.fns.run/advanced-use-cases/food-delivery.md)
- [AI Agent](https://docs.fns.run/advanced-use-cases/ai-agent.md)
- [Recommendations](https://docs.fns.run/advanced-use-cases/recommendations.md)
- [MMO Inventory](https://docs.fns.run/advanced-use-cases/mmo-inventory.md)