# Introduction

IsDown is a status page aggregator & outage monitoring tool for all your business-critical dependencies. Get a health dashboard with all your external services. Instant notifications on outages. All in one place.

To get started with developing against the [IsDown](https://isdown.app) API, you first need an IsDown account. You can [Sign In](https://isdown.app/users/sign_in) or [Create your new account here](https://isdown.app/users/sign_up).