Normalized Steam API JSON
Use predictable JSON structures across documented inventory, item, profile, float and price endpoints.
Developer-friendly API
Steam API for CS2, Rust, Dota2 & more
Inventory, Profile, Market, Price & Trade API
Steam API for CS2, Rust, Dota 2 & more — leading inventory, profile, market, pricing & trade APIs.
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Trusted by Steam API developers since 2018
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Our API is trusted by developers across the globe who rely on our services for their projects.
2016
Established
Trusted by Steam developers since
9,021
Registered Developers
Accounts created on SteamWebAPI
142,519
Marketable Items
Across all supported Steam games
8
Supported Games
Enabled in our public Steam API
13
Active Marketplaces
Currently enabled price sources
50,792,027
Active Listings
Across all supported Steam games
1,601,789
CS2 Sales (24h)
Tracked Steam Community Market purchases
$30,841,047
Active CS2 Listing Value
Estimated value of current Steam listings
How Steamwebapi works
Start using Steamwebapi in three steps: create your account, get your Steamwebapi API key and call a documented endpoint.
01
Create your Steamwebapi account
Sign in with Steam and start on the free plan. No credit card required.
02
Get your Steam WEB API key
Generate the key in your Steamwebapi dashboard and use it with every documented request.
03
Call your first Steam API endpoint
Fetch inventory, market price, profile or CS2 data through a consistent authenticated JSON interface.
Steamwebapi provides normalized inventory, market, profile and CS2 data through one documented API
View Steam API documentation →What can I build with the Steam Web API?
Turn Steam inventory, item, profile and marketplace data into products your users can rely on.
Steam Market API for Marketplaces
Build deposits, item catalogs and pricing workflows with the Steam Inventory API and normalized item data.
Steam Inventory Value Calculator
Match public inventories with current Steam Market prices to calculate estimated portfolio value.
CS2 API for Community Apps
Add CS2 inventories, Steam profile data and item details to esports platforms, PUG services and community websites.
Steam Price API & Trading Tools
Build trading workflows, portfolio views and market comparison tools with normalized Steam item prices and historical data.
Steam API for Discord Bots
Create Discord bots that display Steam inventories, item prices, player profiles, rankings and market alerts.
Steam Inventory Tracker
Detect Steam inventory changes and combine them with item metadata, price history and market analytics.
Have a custom use case?
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CS2 Skin Price API
All CS2 marketplaces. One CS2 price API.
Compare Steam Market and CS2 skin prices from Buff163, Youpin898, Skinport, DMarket, Waxpeer, Skinbaron and other supported marketplaces through one normalized API—including available Doppler phase prices.
Explore Steam API response examples
Choose an endpoint and inspect a static example JSON response. No signup or API key required.
Review representative response structures before writing integration code. These mock responses demonstrate the normalized JSON format used by documented Steamwebapi endpoints.
Steam API endpoints included in these examples
Inventory API
Preview the response structure for Steam inventories across CS2, Dota 2, Rust and TF2, including normalized item metadata and available pricing fields.
Inventory Batch API
Pull multiple Steam inventories in a single request. Ideal for portfolio trackers, leaderboards and inventory worth calculators.
Items API
Browse the full catalog of Steam items with names, types, rarity, exterior and live market price snapshots.
Item Detail API
Get granular per-item data — current price, median price, lowest sell, highest buy and 24h volume — for any Steam Market listing.
Steam Profile API
Preview Steam profile fields including avatar, level, country, friend count and visibility.
CS2 Float API
Retrieve float values, paint seeds and patterns for CS2 skins. Backed by our growing float database with 6+ months of historical data.
Friendlist API
Get a Steam user's friend list with relation timestamps. Useful for trade-bot allowlists and community graph analytics.
Price History API
Up to 365 days of Steam Market price history per item. Power dashboards, alerts, arbitrage detection and trading signals.
Steam Login Secure Resolver
Decode and validate Steam Login Secure cookies for server-side trade-bot and authentication flows.
Steam ID Resolver
Convert any Steam vanity URL or profile link into a SteamID64 for use with all our endpoints.
Steam API Platform
One Steam API. Built for production.
Use one API key and predictable JSON across Steam inventory, item, profile, CS2 float, marketplace price and price-history workflows.
Go to Steam API DocumentationSteam Market & Marketplace Prices
Use the latest available Steam and marketplace price snapshots in your product.
CS2 Skin, Float & Pattern Data
Access CS2 item metadata, float values, paint seeds and pattern details where available.
Steam Item Price History
Track available Steam Market price changes over time with historical data.
Steam Inventory Tracking
Monitor item additions and removals in user inventories for a complete history.
Steam Profile API
Retrieve available Steam profile fields through a documented JSON response.
Steam 429 Protection
Request buffering, caching and fallback strategies reduce exposure to upstream Steam rate limits.
Production-ready API Performance
Cached reads and normalized payloads reduce repeated upstream work in common integrations.
Steam API status, documentation and reliability
Check Steamwebapi availability, review documented JSON endpoints and protect production workflows with API key authentication, HTTPS, caching and rate-limit handling.
HTTPS
HTTPS API access
Encrypted Steamwebapi requests
JSON
Normalized Steam API JSON
Predictable response structures
STATUS
Steam API status
Public Steamwebapi availability
DOCS
Steam API documentation
Endpoints, parameters and examples
Maintained Steam API endpoints
Documented endpoint contracts and integrations are maintained as supported data sources evolve.
Steam 429 and rate-limit protection
Request buffering and caching reduce exposure to rate limits where endpoint semantics permit it.
Steamwebapi API key authentication
API key authentication and HTTPS protect access to documented production endpoints.
STEAM INVENTORY API
Steam Inventory API for CS2, Dota 2, Rust and more
Fetch supported inventories, item metadata, profiles, float data and price history through documented JSON endpoints with rate-limit protection.
Inventory API
Seamlessly access user inventories, including item details, without 429 errors.
Reliable accessItems API
Retrieve a complete list of game items with names and descriptions.
Item catalogueProfile API
Fetch Steam user profiles effortlessly, free from blocking issues.
Profile dataItem Details API
Get granular item data – price, median price and more.
Item metadataTracking API
Monitor item changes in inventories in real time.
Change trackingHistory API
Access up to a year of price history to spot trends with ease.
Price history
GAME-SPECIFIC APIS
Steam APIs for popular games
Explore dedicated CS2, Dota 2, Rust and Team Fortress 2 API pages for inventory, item and market data.
View all Steam Games APIs
CS2 API
Dota 2 API
Rust API
Team Fortress 2 API
Steam API examples & open-source tools
Explore a CS2 inventory value calculator plus PHP and Python examples for integrating Steamwebapi.
CS2 Inventory Value Example
A Next.js example that combines Steam Inventory API data with item prices to estimate CS2 inventory value.
Steam inventory value workflow
Next.js source code
PHP Steam API Example
A PHP example for authenticated Steamwebapi requests and normalized JSON responses.
Steamwebapi request examples
Open-source PHP client
Python Steam API Example
A Python example for authenticated Steamwebapi requests and normalized JSON responses.
Steamwebapi request examples
Open-source Python client
Steam API Frequently Asked Questions
Answers about Steam API keys, inventory data, market prices, CS2 floats, rate limits and API documentation.
What is Steamwebapi and what data does it provide?
Steamwebapi is an independent platform providing normalized inventory, market, profile and CS2 data for production integrations.
Which Steam games and API endpoints are supported?
Configured games include CS2, Dota 2, Rust and Team Fortress 2; current inventory, item, market, profile and related endpoints are listed in the documentation.
Where do I get a Steamwebapi API key, and how is it different from a Steam Community API key?
Your Steamwebapi API key is created in the dashboard after you sign in with Steam. It authenticates Steamwebapi endpoints and is separate from keys used for Valve or Steam Community services. Steam API Key Guide
Where can I find my Steam API key?
Your Steamwebapi key is shown in the dashboard after signing in with Steam. Valve's separate Steamcommunity API key is issued at steamcommunity.com/dev/apikey and is only required for official Valve Web API methods.
What is a Steam Market API and which item price data does it return?
It exposes available prices, item metadata, sales fields and price history through documented JSON endpoints, depending on item, game and source coverage.
How often are Steam Market and third-party marketplace prices updated?
Frequency depends on source and endpoint; available timestamps let applications evaluate freshness while scheduled collection and caching reduce upstream load.
Can I use the Steam API for marketplaces, price trackers and Steam trade bots?
Yes. Steamwebapi data can support marketplaces, price trackers, Discord bots and Steam trade bot workflows. Review current endpoint coverage, plan limits and terms before production use.
Is there an official Steam Community Market API?
Valve does not publish an official, documented Steam Community Market API. Steamwebapi provides documented market endpoints with normalized JSON, current prices and price history, so you do not have to scrape undocumented Steam pages.
How do I fetch a Steam or CS2 inventory with the API?
Call the documented inventory endpoint with your key, SteamID and game ID. Public inventories return normalized item data; Steam privacy settings still apply.
How can I calculate the value of a Steam or CS2 inventory?
Fetch the public inventory, match supported items with a consistent Steam or marketplace price field and sum the resulting estimates.
Do you provide a CS2 Float API or CSFloat marketplace data?
The CS2 Float API returns float values, paint seeds, patterns and inspection screenshots where available. Supported marketplace endpoints expose separate CSFloat price and listing data according to current coverage.
Why is the official Steam inventory endpoint often down or slow?
Steam's public inventory endpoint is undocumented and aggressively rate-limited per IP, so busy applications quickly receive 429 Too Many Requests responses. Steamwebapi buffers, caches and retries these requests to keep inventory data available.
How does Steamwebapi handle Steam API 429 errors?
Request buffering, caching, retries and endpoint-specific fallbacks reduce exposure to upstream limits, while clients should still handle documented errors.
Is there a free Steam API plan, and what limits apply?
A free plan is available for evaluation; the Pricing page contains the current limits, included features and production options.
Where can I find Steam API documentation and JSON response examples?
The Steam API documentation lists endpoints, parameters, authentication and request examples. The homepage response explorer provides static mock JSON examples for reviewing representative response structures.
How do I fix "Request failed with status code 429" from Steam?
Status code 429 means Steam is rate-limiting your IP after too many requests. Reduce request frequency, cache responses and spread traffic over time — or fetch Steam data through Steamwebapi, which handles buffering, caching and retries for you. Steam 429 Guide
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Steamwebapi: production infrastructure for Steam data
Steamwebapi is an independent developer platform for Steam-related data. One API key provides documented access to inventories, Steam Market prices, item metadata, profiles, CS2 float values, friend lists and historical price data across supported games.
Steamwebapi is not affiliated with Valve. Request buffering, caching and normalized responses are designed to reduce rate-limit friction and simplify production integrations.
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Sign in with Steam to create your API key, test documented endpoints and choose a plan when your project is ready for production.
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