# Appendix

- [JSON Examples](https://developer.prodege.com/demand/appendix/json-examples.md)
- [Collecting User Data](https://developer.prodege.com/demand/appendix/collecting-user-data.md)
- [Project Types](https://developer.prodege.com/demand/appendix/project-types.md)
- [Error Codes](https://developer.prodege.com/demand/appendix/error-codes.md)
- [Real Time Pricing Overview](https://developer.prodege.com/demand/appendix/real-time-pricing-overview.md)
- [FAQ](https://developer.prodege.com/demand/appendix/faq.md)