CS2 Buff API & Third-Party Marketplace Prices
All Markets, One API
Access real-time CS2 skin prices from Buff, Youpin, Skinport, DMarket, Waxpeer and 5 more marketplaces through a single, unified API. Including Doppler & Gamma Doppler phase-specific pricing.
10 Third-Party Marketplaces – One API Call
We aggregate pricing data from the most popular CS2 skin marketplaces. Query any marketplace with a single parameter – no need to integrate each one separately.
Bitskins
http://www.bitskins.com
Veteran multi-game marketplace, one of the oldest in the Steam ecosystem. Pull BitSkins prices through one REST API.
Buff
https://buff.163.com/
China's largest CS2 marketplace by listing volume. Pull Buff163 prices and listings through our unified REST API — no Cloudflare battles, no scraping.
CSGOcom
http://market.csgo.com
CSGOcom marketplace integration. Get unified, real-time pricing and listing data through a single API endpoint.
Dmarket
http://www.dmarket.com
Multi-game P2P marketplace covering CS2, Dota 2, Rust, TF2 and more. Pull DMarket prices through one REST API.
HaloSkins
http://www.haloskins.io
Emerging Western CS2 marketplace. Pull HaloSkins listings through one REST API.
Skinbaron
http://skinbaron.de
German-regulated EU CS2 marketplace. Pull Skinbaron listings through one REST API.
Tradeit
http://tradeit.gg
Trade-focused marketplace covering CS2, Dota 2, Rust and TF2. Pull Tradeit prices through one REST API.
Waxpeer
http://waxpeer.com
Fast Western P2P CS2 marketplace. Pull Waxpeer listings through one REST API.
How It Works
Getting third-party marketplace prices is as simple as adding a query parameter. No complex integrations, no separate API keys for each marketplace.
Choose a Marketplace
Select from 10 supported marketplaces – Buff, Youpin, Skinport, DMarket, Waxpeer, Skinbaron, Bitskins, HaloSkins, Tradeit or CSGO.com Market.
Make an API Call
Add the marketplace parameter to your API request. Use the same endpoint structure you already know.
Get Price Data
Receive structured JSON with current prices, including phase-specific pricing for Doppler and Gamma Doppler knives.
Doppler & Gamma Doppler Phase Prices
Our API returns phase-specific pricing for Doppler and Gamma Doppler knives across all supported marketplaces. Get accurate valuations for every phase – from Phase 1 to Ruby, Sapphire and Emerald.
Doppler Phases
Phase 1
Dark violet and blue tones. Consistent mid-range pricing across phases.
Phase 2
Green and violet galaxy pattern. Often the most sought-after standard phase.
Phase 3
Blue and green mix with dark undertones. Typically the most affordable phase.
Phase 4
Deep blue dominating pattern. Highly popular for its clean blue look.
Ruby
Pure deep red finish. One of the rarest and most expensive Doppler variants.
Sapphire
Solid vibrant blue. Among the highest-valued Doppler patterns on every marketplace.
Black Pearl
Dark iridescent purple-green tint. Extremely rare, priced above standard phases.
Emerald
Vivid green finish. The rarest Doppler variant, commanding premium prices.
Gamma Doppler Phases
Phase 1
Bright green with cyan accents. A fresh take on the Doppler concept.
Phase 2
Lime green with neon tones. One of the brightest Gamma Doppler variants.
Phase 3
Mixed green and yellow tones. A more muted Gamma Doppler pattern.
Phase 4
Teal and cyan dominating. Clean, ocean-like appearance.
Emerald
Pure bright green. The rarest and most valuable Gamma Doppler phase.
Why Use One API for All Marketplaces?
Stop maintaining separate integrations for each marketplace. Our unified API gives you instant access to pricing data across all 9 platforms.
Cross-Marketplace Price Comparison
Compare skin prices across Skinport, Buff, DMarket and more in a single request. Find the best deals instantly.
Arbitrage Detection
Spot price differences between marketplaces automatically. Build trading bots that capitalize on price gaps.
Portfolio Valuation
Value your CS2 inventory using prices from any marketplace. Give users accurate, marketplace-specific valuations.
Unified JSON Format
All marketplace data follows the same schema. Switch between marketplaces by changing one parameter – no code changes needed.
Real-time Price Updates
Prices are continuously updated from all 10 marketplaces. Always work with fresh, accurate pricing data.
Phase-Specific Pricing
Get accurate Doppler and Gamma Doppler phase prices per marketplace. No more guessing – exact valuations for Ruby, Sapphire, Emerald and every phase.
Frequently Asked Questions
Everything you need to know about our third-party marketplace pricing API.
What third-party marketplaces does SteamWebAPI support?
We currently support 10 marketplaces: Buff (buff.163.com), Youpin (youpin898.com), Skinport, Waxpeer, Skinbaron, Bitskins, CSGO.com Market, HaloSkins, DMarket and Tradeit. All are accessible through a single API with a marketplace parameter.
How do I get CS2 skin prices from Skinport, Buff or DMarket?
Simply add the market parameter to your API request – for example &market=skinport, &market=buff or &market=dmarket. The response includes current pricing data in a unified JSON format.
What are Doppler phase prices and why do they matter?
Doppler knives in CS2 come in different phases (Phase 1-4, Ruby, Sapphire, Black Pearl, Emerald) each with vastly different values. A Sapphire can be worth 10x more than a Phase 3. Our API returns phase-specific prices so you always get accurate valuations.
Can I compare prices across multiple marketplaces?
Yes. You can query the same item across all 10 marketplaces and compare prices. This is ideal for building price comparison tools, finding the best deals, or detecting arbitrage opportunities.
How often are marketplace prices updated?
Prices are continuously updated from all supported marketplaces. We use optimized caching and real-time data fetching to ensure you always receive current, accurate pricing data.
Do you support both Doppler and Gamma Doppler phase prices?
Yes. We support all 8 Doppler phases (Phase 1-4, Ruby, Sapphire, Black Pearl, Emerald) and all 5 Gamma Doppler phases (Phase 1-4, Emerald) with per-marketplace pricing.
Is there a free plan for marketplace price data?
Yes. Our Free Plan gives you access to all endpoints including third-party marketplace pricing. For production use with higher rate limits, we recommend at least the Starter Plan.
SteamWebAPI – CS2 Third-Party Marketplace Prices API
SteamWebAPI.com offers a comprehensive CS2 Buff API and third-party marketplace pricing API that aggregates skin prices from Buff (buff.163.com), Youpin (youpin898.com), Skinport, Waxpeer, Skinbaron, Bitskins, CSGO.com Market, HaloSkins, DMarket and Tradeit. Our CS2 Buff API provides access to the world's largest skin marketplace, while the Youpin API covers the growing Chinese market. Access Doppler phase prices including Phase 1, Phase 2, Phase 3, Phase 4, Ruby, Sapphire, Black Pearl and Emerald, as well as Gamma Doppler phase prices across all supported marketplaces. Our CS2 skin price API provides real-time pricing data in a unified JSON format, enabling cross-marketplace price comparison, arbitrage detection, portfolio valuation and automated trading. Whether you're building a CS2 marketplace, price tracker, trading bot or inventory calculator, SteamWebAPI delivers the data you need from all major third-party CS2 skin marketplaces through a single, reliable API.
Start Comparing Marketplace Prices Today
Sign in with your Steam account to get your free API key. Access pricing data from 10 marketplaces including Buff and Youpin, plus Doppler phase prices in seconds.
No credit card required