Steam Web API: Am I allowed to use it as private person?

I had the following idea:

Creating a non commercial webpage, which looks through all steam comments to see games has the most playtime. Imagine a ranking like "average playtime" #1: SimCity 66.3h, #2 Monkey Island 59.4h etc.

I've seen there is an web API given by steam which seems to fulfill my needs: https://partner.steamgames.com/doc/webapi_overview

I'm curious if:

Am I as private person allowed to use it?
Do I need dev key?
Is there a GET request to get all AppIDs of all games?

steam

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Is Steam API public?

Steam exposes an HTTP based Web API which can be used to access many Steamworks features. The API contains public methods that can be accessed from any application capable of making an HTTP request, such as game client or server.

Is Steam API free to use?

Steam Web APIs.Valve makes the Steam Web API available free, and you understand that Valve may change or terminate the Steam Web API entirely or your access in particular. Valve may identify new releases from time to time at this link, and may require you to use the most recent version.

What can you do with Steam Web API?

Among the methods in the Web API are methods to return the latest news for a particular game, return a global achievements list for a game, return an achievement list for a particular Steam user and particular game, and methods to return lists of owned and recently played games for a Steam user.

How do I get Steam Web API?

HOW TO GET YOUR STEAM WEB API TOKEN

Ensure that you are logged into the Steam Community Website.

Navigate to the Steam API Key Registration Website.

Now add a domain name, agree to the terms and click register. ...

Your key will be shown in the Key text field.

Steam Web API Key | Complete Guide | Add, Delete \u0026 Info

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