Keepa is built for price history and product research. Its alerts are price watches you set up product by product, or tracking you buy separately through its API. SentryKit watches every ASIN in your Seller Central account as soon as you connect it, and alerts you in real time when a competitor changes price, a new seller joins your listing, the Buy Box moves or Amazon suppresses a listing.
If you mostly open Keepa to keep an eye on your own ASINs and the sellers on them, this is how the two compare.
| Keepa | SentryKit | |
|---|---|---|
| Built for | Price history, sales rank and product research across Amazon | Real-time alerts on the listings you sell |
| How alerts are set up | Price watches per product, or tracking through the separately priced API | Every ASIN in your connected account, automatically, in 22 marketplaces |
| Connects to Seller Central | No, it tracks public Amazon data | Yes, so alerts include your own price, Buy Box status and listing issues |
| Competitor price changes | Price watches on a product's price | Who moved, FBA or FBM, old and new price, your gap and Buy Box status |
| Search suppression and FBA fee changes | Not available, it needs Seller Central data | Amazon's reason and issue code; old vs new FBA fee |
| Delivery | Email, app or browser notifications; webhooks through the API | Email, Slack, Microsoft Teams, ClickUp, webhooks and REST API on every plan |
| Price | Free tier; Pro €29/month or €290/year; API from €49/month | From $19/month, unlimited ASINs; 14-day free trial, no credit card |
Keepa prices as listed in October 2026.
Every alert names what changed, who changed it and what it means for your listing. Pick one to see the email.
Get them by email, Slack, Microsoft Teams, ClickUp, a webhook or our API, routed per storefront or per brand.
If your team, a VA or an AI agent needs to know when something changes on your listings, you don't need to poll for it. SentryKit sends each alert to you as it happens, and the API and webhooks come with every plan.
"The various alert features are all highly effective: price change alerts, Buy Box alerts, hijacker alerts, and listing change alerts are particularly valuable to us."
"The notification arrived even before I saw it in Seller Central, so perfect!"
Every plan · 14-day free trial · No credit card required
