SentryKit is the Amazon Seller Intelligence platform — an amazon buy box monitor with 20+ alert types covering every layer of your listing. Hijackers. Buy Box losses. Amazon suppressed listing events. Sales velocity swings. Amazon stranded inventory. Pricing shifts. Review spikes. The signal layer to run every Amazon decision on — automated or manual. Intelligence with automation. Always together. Repricers move your price. AI agents act on your catalog. SentryKit is the intelligence underneath: the signals your repricer, your agents, and you all run on. Use it alongside BQool, Aura, Seller Snap, or any automation stack — every decision runs on better context. Delivered across every marketplace, to email, SMS, Slack, Teams, or webhook. Amazon Buy Box Monitor & Buy Box Intelligence Core buy box monitoring built for Amazon: every ASIN you care about, checked continuously, with buy box alerts firing the moment ownership shifts. SentryKit distinguishes Buy Box Lost from Search Suppression — two very different events with very different fixes. Track your amazon buy box wins, learn how to win buy box more often, and get the full event history — not just today's snapshot. Amazon Hijacker Alert & Competitor Price Alert The amazon hijacker alert fires the moment an unauthorized seller appears on your listing — with seller-profile enrichment so you know who you're dealing with. The amazon price change alert and competitor price alert surface every move your competitors make — with full price history and floor-price context. Feed it to your repricer, your AI agent, or read it yourself. Same signal, every workflow. Amazon Suppressed Listing & Listing Health Search Suppression, Suspended Listing, Add to Cart, Product Details Change, Main Image, Category Change, and Parent Product Change alerts cover every way Amazon can quietly break your listing. If your listing becomes an amazon suppressed listing, you find out when it happens — not when your sales fall off a cliff a week later. Sales Velocity, Stranded Inventory & Performance Signals FBA Stock, FBM Stock, and Sales Volume alerts flag anomalies before stockouts compound. Track sales velocity across your catalog and catch amazon stranded inventory the moment it appears — one of the highest-cost, lowest-visibility problems on Amazon. Any amazon sales drop is flagged immediately against your baseline. Best Seller Badge, Amazon's Choice, Subscribe & Save, and FBA Fee Change alerts track the performance and cost signals that move your revenue. Review & Reputation Monitoring Latest Reviews and Top Rated Reviews alerts ping you the moment a 1-2 star review lands — so you can respond within the window that matters, not two weeks later. Verified/unverified flags, star histories, and review-velocity anomalies all logged and searchable. Multi-Channel Delivery Alerts are delivered where you actually work: email, SMS, Slack, Microsoft Teams, webhook, or the SentryKit dashboard. Set routing rules per alert type, per team member, per client. Daily digests for account managers. Full historical record of every signal, searchable. Amazon Buy Box Software for Agencies Whether you monitor 1 ASIN or 1,000, SentryKit handles it. Purpose-built amazon buy box software for agencies managing 50+ client accounts: shared workspaces, role-based routing, custom notification rules per client, daily team digests, and flexible commission and permission models. One dashboard, every client, every marketplace. Who should use SentryKit? 1. New sellers who want real-time intelligence from day one, on a plan that scales with order volume 2. Experienced sellers with 100+ ASINs who are tired of manually checking listings or getting daily reports too late 3. Sellers running repricers (BQool, Aura, Seller Snap) or AI agents who need a cleaner signal underneath their automation 4. Brand Registry sellers protecting their listings from hijackers and counterfeiters 5. Agencies managing anything from 5 to 500+ client ASINs who need alert routing, client-level reporting, and flexible pricing 6. Sellers who have been burned before by hijackers, suppressed listings, or ranking drops they discovered too late 7. Any Amazon seller who wants the intelligence layer underneath every pricing, inventory, and listing decision Pricing information: 30-day free trial — full monitoring from day one, no credit card required. Starter plan — $19 / month · up to 2,000 orders / month, unlimited ASINs Pro plan — $49 / month · up to 10,000 orders / month, unlimited ASINs No ASIN limits — monitoring scales with your order volume, not your catalog size. Cancel anytime. No setup fees. No long-term contracts. Features: Amazon Seller Intelligence, end to end — 20+ alert types covering Buy Box, hijackers, listing health, pricing, inventory, performance badges, and reviews. The signal layer to run every Amazon decision on. Real-time amazon buy box monitor — continuous buy box monitoring with buy box alerts firing the moment ownership shifts. Track your amazon buy box wins and learn how to win buy box more often. Amazon hijacker alert with seller enrichment — the amazon hijacker alert flags unauthorized sellers and counterfeiters the moment they land on your listing, with seller-profile context so you can act. Amazon suppressed listing detection — search suppressions, suspended listings, Add to Cart failures, main image swaps, category changes, and parent-product shifts surface the instant Amazon makes the change. Sales velocity & amazon stranded inventory signals — track sales velocity across your catalog, catch stranded inventory on Amazon, and get flagged on any sales drop before stockouts compound. Competitor price alert & amazon price change alert — pricing signals with full history. Subscribe & Save flips, Best Seller / Amazon's Choice badge shifts, and 1-2 star review pings, all in one feed. Feeds your repricer, your AI agents, and you — SentryKit is the intelligence underneath. Use it alongside BQool, Aura, Seller Snap, or any automation — every pricing and operational decision runs on better context. One dashboard, every marketplace — US, CA, UK, DE, FR, IT, ES, JP, AU, MX, BR from a single view. Alerts where you actually work — email, SMS, Slack, Microsoft Teams, and webhook. Daily digests for teams. Custom routing rules for agencies.