# Authentication

Welcome to the Contrast API reference.

The Contrast API is a REST API. It has predictable resource-oriented URLs, accepts JSON request bodies, returns JSON responses, and uses standard HTTP response codes, authentication, and verbs.

## BASE URL

```
https://connect.getcontrast.io
```

The API is built around the following resources:

- [Events](https://docs.getcontrast.io/events/event-object)
- [Polls](https://docs.getcontrast.io/poll-votes/poll-vote-object)
- [Recurring events](https://docs.getcontrast.io/recurring-events/recurring-event-object)
- [Registrations](https://docs.getcontrast.io/registrations/registration-object)
- [Views](https://docs.getcontrast.io/views/view-object)
- [Chat Messages](https://docs.getcontrast.io/chat-messages/chat-message-object)

[Versioning](https://docs.getcontrast.io/versioning "Versioning") [Status codes](https://docs.getcontrast.io/status-codes "Status codes")