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

# Database details

- [Data Sources data dictionary](https://docs.pdap.io/about/data-dictionaries/data-sources-data-dictionary.md)
- [Agencies data dictionary](https://docs.pdap.io/about/data-dictionaries/agencies-data-dictionary.md)
- [Requests data dictionary](https://docs.pdap.io/about/data-dictionaries/agencies-data-dictionary-1.md)
- [Record Types taxonomy](https://docs.pdap.io/about/data-dictionaries/record-types-taxonomy.md): Examples and descriptions of the Record Types we're collecting.
- [Hidden properties](https://docs.pdap.io/about/data-dictionaries/hidden-properties.md)