AI Restock Alerts
Stop hitting refresh on sold-out product pages. change-happens watches for restocks and sends you an alert the moment inventory comes back — so you can grab it before it sells out again.
How it works
Give change-happens the URL of the sold-out product and describe what to watch for. The AI monitors the page daily and sends you a notification the moment the item comes back in stock — on any retailer website, for any product category.
"Alert me when the LEGO Millennium Falcon (set 75192) comes back in stock on LEGO.com or Amazon. Also watch for any restocks of the Nintendo Switch OLED in white at MediaMarkt.de."
Limited drops
Sneaker drops, collectibles, limited editions — know the instant they're available.
Electronics & gaming
Consoles, GPUs, and high-demand gadgets that sell out instantly on launch day.
Toys & collectibles
LEGO sets, Funko Pops, trading cards — track restocks on any retailer.
Popular restock alert use cases
👟 Sneaker releases & restocks
Nike SNKRS, Adidas, END, Foot Locker — monitor your most-wanted pairs across all major drop sites.
🧱 LEGO & collector sets
Retirement-risk sets, Icons collection, limited UCS releases — know the moment they restock before prices spike on secondary market.
🖥️ GPU & PC hardware
RTX 5090, RX 9070 XT, and other high-demand components that sell out within minutes of going live.
🎴 Trading cards & TCG
Pokémon, Magic: The Gathering, One Piece — track booster box restocks and sealed product availability.
Frequently asked questions
How do AI-powered restock alerts work? ▾
You give change-happens the URL of the sold-out product page and describe what to watch for in plain English — for example, 'alert me when this LEGO set comes back in stock'. The AI visits the page daily, understands the current stock status in context, and sends you an email the moment the item becomes available again.
Which retailers and product pages can I monitor? ▾
Any publicly accessible product page: Amazon, LEGO.com, Nike, SNKRS, Foot Locker, MediaMarkt, Best Buy, GameStop, Target, and thousands of other online retailers. If the stock status is visible on the page, change-happens can detect the change.
How quickly will I be notified when a product restocks? ▾
Agents run once per day by default. You'll receive an email notification the morning after a restock is detected. For most restock situations — LEGO sets, collectibles, limited drops — daily monitoring gives you a meaningful head start over shoppers who check manually.
Can I monitor multiple products across multiple stores at once? ▾
Yes. A single agent can watch multiple product URLs simultaneously. For example: 'Monitor the LEGO Millennium Falcon on LEGO.com, Amazon, and Media Markt. Also watch for the Nintendo Switch OLED white edition on Amazon and Saturn. Alert me the moment any of these comes back in stock.' One agent, all your wishlist items.
How is this different from built-in 'notify me' features on retailer sites? ▾
Built-in notify-me features only work if the retailer offers them (many don't), require an account on each platform, and often send alerts after items are already sold out again. change-happens monitors the actual page regardless of whether the retailer has a notify feature, works across all retailers uniformly, and you control the alert delivery.
Can I monitor limited releases and sneaker drops? ▾
Yes. You can watch dedicated drop pages, sneaker sites like Nike SNKRS, Foot Locker, or END Clothing, and get notified when a new release goes live or when a sold-out colorway restocks. Pair it with a fast checkout process and you'll have a real edge over manual refresh spammers.
What does a restock alert notification look like? ▾
You receive a plain-English email: 'LEGO Millennium Falcon (75192) is now available on LEGO.com — currently showing In Stock in multiple sizes. Also detected as available on Amazon at [price range]. Act fast, these typically sell out within hours.' You get context, not just a raw URL.
Never miss a restock again
Set up your restock alert in minutes. No credit card required.
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