> For the complete documentation index, see [llms.txt](https://cityweft.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cityweft.gitbook.io/docs/basics.md).

# Basics

- [Authentification](https://cityweft.gitbook.io/docs/basics/authentification.md)
- [Customizations](https://cityweft.gitbook.io/docs/basics/customizations.md): Cityweft provides numerous opportunities for customizing output, allowing for tailored solutions that meet specific user requirements.
- [Coordinate Systems (CRS)](https://cityweft.gitbook.io/docs/basics/coordinate-systems-crs.md): The Cityweft API supports three different coordinate reference systems to accommodate various use cases and integration requirements. Choose the appropriate CRS based on your use case
- [Metadata (Descriptors)](https://cityweft.gitbook.io/docs/basics/metadata-descriptors.md): This page describes the descriptor objects returned in the API response