01
Cross-market comparison
Compare Dupe.fi prices against other marketplaces in a single API call.
Marketplace profile
Updated
Dupe.fi API for CS2
Query Dupe.fi listings and buy orders through one CS2Cap endpoint. Rather than integrating Dupe.fi directly, you get its feed normalized alongside every other marketplace we track.
Dupe.fi runs a peer-to-peer book with buy orders and no listing fee, so its asks and bids sit close to what participants actually intend to transact at. The catalog is small and concentrated in items with real turnover. For bid-side data on a limited set of skins it is a cleaner signal than its size would suggest.
CS2Cap tracks 638.1K Dupe.fi listings across 22.9K items, 54.3% of the CS2 catalog, holding $34.2M in listed value. That makes it the 14th-largest listing book of the 41 marketplaces tracked here. The feed refreshes every 15 minutes, with buy orders. Daily Dupe.fi price history runs back to May 2026.
Current coverage recordLive
Listings
638.1K
Unique items
22.9K
Catalog coverage
54.3%
Total value
$34.2M
Selling Fee
0.0%
Market type
P2P
Dupe.fi API requestprovider-filtered
cURL
curl -sS \
-H "Authorization: Bearer $CS2C_API_KEY" \
"https://api.cs2c.app/prices?providers=dupefi¤cy=USD&limit=1"Feed capabilities
Current listingsAvailable
Buy ordersAvailable
Recent salesNot reported
What this record means
CS2Cap normalizes Dupe.fi into the same item, price, currency, and timestamp conventions used for every tracked marketplace. Coverage is reported from the current provider contract; historical depth is not inferred when it is not declared.
Tracked history
How Dupe.fi has moved
Ninety days of daily snapshots, recorded by CS2Cap since May 19, 2026. Nobody publishes this history: reconstructing it means polling the marketplace every day and keeping the results.
Listings▲ +2772.4%
641.5K
Total value▲ +1094.7%
$34.4M
Dupe.fi data
Listing prices
Lowest listed price and quantity for items available on Dupe.fi, refreshed every 15 minutes.
Buy orders
Highest standing bid and bid count from Dupe.fi via the Buy Orders endpoint.
Historical data
Daily Dupe.fi price points archived without a retention cutoff, plus intraday candles over the recent window.
Analytics
Cross-marketplace analytics including Dupe.fi in spread and volume calculations.
Applications
Use Dupe.fi in context
02
Automated monitoring
Track Dupe.fi pricing programmatically alongside other providers.
03
Market analysis
Include Dupe.fi data in spread, volume, and pricing analysis across markets.
04
Order spreads
Calculate Dupe.fi order spreads using combined price and buy order data.
Compare another marketplace
Questions
Before you build
Is this an official Dupe.fi API?
No. CS2Cap is a third-party aggregation service. Dupe.fi data is included as one of many supported marketplace sources.
What data is available from Dupe.fi?
CS2Cap returns Dupe.fi listing prices, buy orders, refreshed every 15 minutes, with daily history since May 2026.
Is Dupe.fi the same as Dupe.fi?
Yes. Dupe.fi is also written as Dupe.fi. Those names all refer to the same marketplace, and this page covers that single feed.
Are Doppler phases and float values priced separately?
No. Dupe.fi prices are keyed by item name and Doppler phases are not broken out on this feed. Float value and paint seed appear on individual sale records from marketplaces that publish them.
How far back does the data go?
Dupe.fi daily price history runs back to May 2026, and per-item daily price points are archived without a retention cutoff.
How do I filter for this provider only?
Use the repeated providers=dupefi parameter on supported list endpoints such as prices, bids, and sales. Raw price history uses the singular provider=dupefi parameter.
Build against the same data.
Check endpoint access, choose a plan, and create your key.