Some APIs work with OAuth access token, if you have one you can provide it here and it will be preferred over the webapi key.

Here's how to get one:

• Open https://store.steampowered.com/points/shop/
• Run the following script:

This is a static page that is automatically generated from GetSupportedAPIList using public and publisher keys. Additionally service methods are parsed from Steam client's protobuf files.

If you specify the web api key above, it will be stored in your browser, and will only be sent to Valve's API servers if you chose to do so.

Type a value in the value field and click the execute button to perform an API request in your browser.

This website is created and maintained by xPaw. Use any APIs listed here at your own risk.
I do not know how all of them work, this page is simply a reference.

If you know of an API that is not listed here, make a pull request to the repository of undocumented APIs.

Source code for this page is also available on GitHub.

The public Steamworks Web API is hosted on https://api.steampowered.com or https://community.steam-api.com.

The public Web API host is accessible via HTTP (port 80) and HTTPS (port 443). Note that any requests using your publisher Web API key should be made over HTTPS.
This service is behind Akamai's edge cache, so the actual IP addresses you will see for the name will vary based on your location and on ongoing service changes.
The IPs can change rapidly and fluidly, so if your Web API calls are made through a firewall on outbound requests, read on.

Steam also provides a partner-only Web API server hosted on https://partner.steam-api.com. The intent of this service is to have higher availability than the public host; you should use this service for all requests made from your secure servers. This host has some different properties than the public host:

• This host is only accessible via HTTPS.
• This host is not behind Akamai's edge cache.
• Every request to this host must be made with your publisher Web API key, even requests which would ordinarily not need a key.
  Requests made without a valid publisher key will return a 403 error code.
• Requests generating 403 status codes will incur strict rate limits for the connecting IP. This is in an effort to ensure high availability. If you generate a sufficient number of requests within a certain time interval that return 403 status codes — either during testing, or by using a regular Web API key instead of your publisher key — the host will put your IP on a deny list for a while.

You should not connect to the Web API servers by IP; use the DNS name.

Similiar to the Steamworks C++ API, the Web API has been divided into multiple interfaces that contain related methods. The URI format of each API request is: https://api.steampowered.com/<interface>/<method>/<method_version>/

Steam supports returning Web API responses in multiple formats. By default, all responses are returned JSON encoded. However, each request can optionally contain a format parameter to specify the desired response format. The following values can be passed for this parameter: xml, json, and vdf.

A flexible solution should be used to parse Web API results as each method may return results in an arbitrary order.