> For the complete documentation index, see [llms.txt](https://docs.parqex.com/-MUyxAVrX9S4wky8UoX6/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parqex.com/-MUyxAVrX9S4wky8UoX6/overview/api-requirements.md).

# API Requirements

In ParqEx's world, security is *paramount*. Therefore, the following requirements must be adhered to strictly:

### Security

* All requests must be made over HTTPS (no exceptions)
* All requests are governed by OAuth 2.0 access tokens

### Caching and Querying

* Data related to the state of the door may not be cached
* No long-polling of the service is allowed