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

# API Document

```
The Contacts API allows external systems to create, update, retrieve, 
and delete contacts in BizCard.
```