# APIs - Introduction

Our APIs allow you to submit URLs for scanning and to retrieve the results once
the scan has finished. Furthermore, you can use an API for searching existing
scans by attributes such as domains, IPs, Autonomous System (AS) numbers,
hashes, etc. To use these APIs, you should create a user account, create an API
key, and supply it when calling the API. Unauthenticated users only receive
minor quotas for API calls.

The fastest way to start working with our APIs is by using one of the many
existing commercial or open source integrations. Check out the comprehensive
list of available API integrations.