What is Steamwebapi?

Steamwebapi is a high-quality API service that provides developers with seamless access to a wide range of information on Steam games, user profiles, inventories, and more. By using Steamwebapi, you can easily retrieve data without relying directly on the official Steam API — reducing the risk of IP blocking or application limitations.

Please note that Steamwebapi operates as an independent service and is not affiliated with Valve, Steam, or any of their partners. All rights belong to their respective owners.

How to use?

To use the API, please follow these steps:

1. Make a GET request to the designated API endpoint.
2. Click the “API” button at the top of the page to open the full documentation.
3. Review the available endpoints, parameters, and response formats there.

Example of usage

Discover real-world API use cases on GitHub. Explore the following links to access code samples and projects using the API:

• PHP Package
• Python Package

Stay tuned for more exciting packages coming soon! Get inspired, learn from existing implementations, and unleash the full potential of the API in your own projects.

And that’s it! Start exploring the power of the API today and open doors to the world of possibilities for your projects.

Example projects

Here is a list of projects using our API:

• Example Project with Next.js (Open Source)
• Steam Inventory Calculator

If you want to add your project to this list, feel free to send us a message on Discord!

How to obtain an API Key?

To get your API key:

1. Create an account by clicking “Login with Steam”.
2. Once logged in, go to your Dashboard → API Key.

Your Steam data is not stored by us.

Is it free?

Yes! You have access to all plans under the free tier. You can upgrade anytime if you need more.

Base URL

The base URL for all requests is:

</em>https://www.steamwebapi.com/steam/api/YOUR_ENDPOINT?key=YOUR_API_KEY

Authentication

You can authenticate in two ways:

Query parameter:

</em>https://www.steamwebapi.com/steam/api/inventory?key=YOUR_API_KEY

HTTP header:

</em>X-API-Key: YOUR_API_KEY

Best tools to test the API

You can test the API with tools like Postman or Insomnia. Alternatively, you can use your browser directly by adding the API key to the request URL.

Example:

</em>https://www.steamwebapi.com/steam/api/inventory?key=YOUR_API_KEY

Responses

All responses are returned in JSON format. If an error occurs, the response will contain an error message.

Games

Endpoints

General response information

Notes:

• All fields starting with priceXXXXX refer to Steam Market data.
• All fields starting with pricerealXXXXX refer to Third-Party Marketplaces.
• Third-Party price data currently available for CS2 only – other games follow soon.

Item & pricing fields

Subscription and support

Subscriptions do not renew automatically — each plan is a one-time subscription.
Newly released game items are typically added within 1–3 days.
All Pro plans include priority support.

Rate limits

Rate limits vary by plan. See your Dashboard for current limits.

Output

Output format is selected via the format query parameter.

• Default: format=json (or omit format)
• Optional: pretty=1 pretty-prints JSON (and JSON inside gzip/zip)

You can also:

• Use filename=MY_EXPORT to set a custom download filename.
• Use callback=myFunction when using format=jsonp to control the JSONP callback name.

Examples

</em># JSON (default)
/steam/api/inventory?key=YOUR_API_KEY

# Pretty JSON
/steam/api/inventory?key=YOUR_API_KEY&format=json&pretty=1

# Gzip-compressed JSON download
/steam/api/items?key=YOUR_API_KEY&format=gzip

# ZIP archive containing a JSON file
/steam/api/items?key=YOUR_API_KEY&format=zip

# CSV download
/steam/api/items?key=YOUR_API_KEY&format=csv

# TSV download
/steam/api/items?key=YOUR_API_KEY&format=tsv

# YAML document
/steam/api/items?key=YOUR_API_KEY&format=yaml

# Simple HTML page printing JSON
/steam/api/items?key=YOUR_API_KEY&format=html

# Interactive HTML table (sortable & searchable)
/steam/api/items?key=YOUR_API_KEY&format=table
# (aliases: format=view, format=html)

# NDJSON (one record per line)
/steam/api/items?key=YOUR_API_KEY&format=ndjson

# JSONP with callback
/steam/api/items?key=YOUR_API_KEY&format=jsonp&callback=myFunction

# MySQL INSERTs (without/with CREATE TABLE)
/steam/api/items?key=YOUR_API_KEY&format=mysql
/steam/api/items?key=YOUR_API_KEY&format=mysql_with_table

# PostgreSQL INSERTs (without/with CREATE TABLE)
/steam/api/items?key=YOUR_API_KEY&format=pgsql
/steam/api/items?key=YOUR_API_KEY&format=pgsql_with_table

# MongoDB insertMany (JavaScript)
/steam/api/items?key=YOUR_API_KEY&format=mongo

Available output formats

Notes

• pretty=1 affects json, and the JSON that is embedded inside gzip/zip.
• ndjson intentionally ignores pretty-printing to keep one record per line.
• Filenames are auto-derived from the request path (e.g., /steam/api/items → items.*) unless overridden with filename=....
• SQL and Mongo formats also derive a sensible table/collection name from the endpoint.

Supported languages

Currently supported for the Inventory API. Item language support is coming soon.

Third-Party Marketplaces Used

Steamwebapi currently collects pricing data from multiple external marketplaces for pricerealXXXX values:

• Skinport
• DMarket
• Buff
• CSGO.com
• Tradeit
• Skinpull
• Waxpeer
• Skinbaron