Sell your MTG collection at the right time
Most people sell their Magic cards whenever they happen to think of it, and leave money on the table. TCGSentry watches CardKingdom's buylist for every card you own and tells you the moment one is worth selling, so you cash out near the top instead of guessing.
- Live CardKingdom buylist value for your whole collection
- A clear Sell or Hold call on every card
- Email and Telegram alerts when a card hits its price
- Import from Moxfield, ManaBox, Archidekt, Deckbox, MTGGoldfish, TCGplayer, or a CSV
- We point you to CardKingdom to sell, and take nothing
- Free to use
Or search any card to see its live price history and sell signal. No account needed.
Every card has an optimal moment to sell. Most people miss it.
Take any card you own. Its buylist price moves constantly. There's where it usually sits, where it climbs to on a good week, and the rare ceiling it hits a couple of times a year. Sell at the wrong moment and you leave the difference behind. Across a whole collection, that difference is real money.
- Cash out today
- $4,180
- With better timing
- $5,360
- Left on the table
- $1,180
Illustrative example. Import your collection to see your own numbers.
Why timing decides what your collection is worth
Buylist prices move constantly. The same card CardKingdom pays $4 for this week might be $7 next month after a tournament result or a reprint scare, then back to $4. If you sell on a random day you usually catch the low. TCGSentry learns where each card's buylist normally sits and how high it realistically reaches, then watches for those highs so you do not have to.
How TCGSentry works
Bring your collection in once. We match every card to CardKingdom and put it on watch. Each card gets a target price, the good price, which is a high the card reaches often enough to be worth waiting for. We monitor the buylist all day, and the moment a card reaches its target you get an alert with a one-click path to your CardKingdom cart.
Sell the cards worth selling, ignore the rest
A collection is mostly bulk with a handful of cards that actually matter. TCGSentry surfaces the ones moving and worth selling now, and stays quiet about everything else, so you spend your time on the cards that pay for it.
Frequently asked questions
How do I know when to sell a Magic card?
TCGSentry compares the current CardKingdom buylist price to where that card normally sits and the highs it tends to reach. When the live price is at or near that high, it marks the card as a sell and alerts you. Below that, it tells you to hold and watches for you.
Where does the pricing come from?
From CardKingdom's public buylist and retail price feeds, updated continuously. The buylist is what CardKingdom pays to buy a card from you, so it is the price that matters when you are selling.
Is it free?
Yes, TCGSentry is free to use. Track your collection, price history, and sell alerts at no cost.
From a pile of cards to a plan in minutes.
Three steps. We do the watching, you do the selling.
Bring your collection
Import from Moxfield, ManaBox, Archidekt, Deckbox, MTGGoldfish, TCGplayer, or a CSV in one go. We match every card to CardKingdom for you.
We put it on watch and monitor the market
Every card gets a clear Sell or Hold call and a target price. Then we watch the buylist for you, all day, every price change.
We tell you when to sell
The moment a card hits its number, you get an email or Telegram ping with a one-click path to your CardKingdom cart. No spam, just the cards worth selling.
The market moves every day. Here's today.
Today's top gainers. Own any of these? Import your collection and we'll watch them for you.
Ready to sell at the right time?
Import your collection in two minutes and see what it’s worth, which cards to sell, and when. Free to use.