Most pumps are over before you notice.

CS2 players and traders sit on items they do not actively watch. Low-tier skins, cases, stickers, the long tail of an inventory. When one starts moving, the window is short, and by the time anyone notices it has usually already played out. CSPump runs an always-on algorithm across Western and Chinese CS2 skin markets to catch pumps, dumps, and accumulation the moment they start, so you can act before it is over.

What the algorithm does

Three things, no more.

Always running

The algorithm does not sleep. It scans Western and Chinese markets continuously, so any pump, dump, or accumulation on an item you own or watch sends an alert the moment it is caught.

Western and Chinese markets

The algorithm watches the major CS2 exchanges across Western and Chinese markets, so a move gets caught wherever it starts, not just on a single marketplace.

Inventory synced fresh

Your inventory price data is synced multiple times a day. Every item shows the exact timestamp of its last sync so you know at a glance how fresh the number is.

FAQ

The four things people actually ask.

How accurate is the algorithm? What about false positives?

No algorithm is perfect. We work with live market data, and on thin markets a small number of trades can move the displayed price without real demand behind it. That is what the confidence score is for. Lower confidence means treat it carefully. Higher volume plus sustained movement is the more reliable signal.

Is my Steam account safe? What does login actually give you?

We use Steam's official OpenID flow. You authenticate on Steam, Steam sends us your SteamID64, and that is it. We never see, store, or have access to your password, items, trades, or messages. We cannot trade on your behalf, list anything, or make any change to your account. You can revoke access anytime from your Steam profile settings.

Is it free? How is it funded?

CSPump is free for players. If you just have items sitting in your inventory, you get alerted when they move at no cost. CSPump Pro is for active traders and investors who want full-catalog coverage, watchlists, and faster checks. Pro subscriptions are how the project is funded. We do not run ads and we do not sell user data, and we will always be upfront about how CSPump makes money.

Can I trust the price data?

The prices you see are pulled from live market data and synced multiple times a day. Each item shows the exact timestamp of its last sync, so you always know how fresh the number is, and the algorithm runs continuously against that same fresh data.

That is the whole story. Now go look at what is pumping.

Go to CSPump

Most pumps are over before you notice.