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

# API Introduction

This reference is your key to a comprehensive understanding of the HeyGov API.

Integrations use the API to access a jurisdiction's departments, forms, payments and users. Integrations can connect services to HeyGov and build interactive experiences.

The base URL to send all API requests is `https://api.heygov.com`.

* Each HeyGov jurisdiction is identified by a unique ID as first path of API endpoint:

```bash
# URL format
https://api.heygov.com/{jurisdiction_id}

# HeyGov test jurisdiction
https://api.heygov.com/heyville.org
```

* HTTPS is required for all API requests.
* The API follows RESTful conventions when possible, with most operations performed via `GET`, `POST`, `PATCH`, and `DELETE` requests on page and database resources. Request and response bodies are encoded as JSON.