INVENTORY.CHK
Plans

Choose your pricing plan.

Start free with public inventories. Upgrade for the full pricing engine, real-time alerts, and unlimited history.

Free

For getting a feel for your inventory.

$0

Forever free

Continue with Steam
  • View your inventory
  • Pricing from Steam Market only
  • 1 sample valuation per day
  • Read-only Steam OpenID
  • Community support
Most popular

Pro

Float-aware pricing across 5 markets.

$9.00/ month

Billed monthly

Start Pro
  • Everything in Free
  • 5 marketplaces (Steam, Buff163, CSFloat, DMarket, Skinport)
  • Float / pattern / sticker / charm premiums
  • Trade-up simulator with EV math
  • 3 watchlist items with price alerts
  • 90-day portfolio history
  • Email support

Premium

For serious collectors and trade-up hunters.

$24/ month

Billed monthly

Upgrade to Premium
  • Everything in Pro
  • Unlimited watchlist items
  • Unlimited portfolio history
  • Bulk CSV export
  • API access (rate-limited)
  • Discord & email alert routing
  • Priority response

Plan comparison

FeatureFreeProPremium
Inventory access
MarketplacesSteam only5 markets5 markets
Float-aware pricing
Sticker + charm premiums
Trade-up simulator
Portfolio history90 daysUnlimited
Watchlist items3Unlimited
AlertsEmailEmail + Discord
CSV export
API accessRate-limited
SupportCommunityEmailPriority

Frequently asked questions

Can I cancel anytime?

Yes. Cancellations take effect at the end of your current billing cycle — no clawbacks, no questions.

Do I need a Steam API key?

No. We use Steam OpenID for read-only profile access. Your account credentials stay with Valve.

How accurate is the pricing?

Within ±8% of Buff163 closing prices on 80% of historical sales for items with tracked float / pattern tiers.

Do you store my inventory?

Cached for 10 minutes for performance. You can clear it from Settings any time, and we never list or trade your items.

Which marketplaces are covered?

Steam Community Market, Buff163, CSFloat, DMarket, and Skinport on Pro and Premium plans.

What happens when I downgrade?

Your watchlist shrinks to the new plan's cap, but inventory and pricing data stay visible (read-only).

Currently tracking:
24,182ITEMS PRICED
1.4MSALES / WEEK
5 / 5MARKETPLACES
18 msAVG LOOKUP