Amazon Review Monitor — New Reviews & Fake-Review Spike Alerts (Vigia)

Track Amazon reviews for your ASINs or a competitor's and get alerted only on what matters: 1-2 star reviews, urgent complaints ("refund", "scam", "nobody answered"), and a sudden burst of new reviews for one product — a classic fake-review-farm or review-bombing signal raw review extractors don't flag. Vigia never scrapes Amazon itself — it chains onto a licensed Amazon reviews actor and adds the delta/intelligence layer.

Why choose Vigia

• Only actionable reviews, only charged for those, at $0.020 — plain review extractors return every review, every run, and charge for all of them whether you need to act or not.
• Review-velocity spike detection — the killer feature: Vigia tracks each ASIN's historical average new-reviews-per-run and flags velocity_spike_asins when a product suddenly gets far more reviews than its normal pace (≥3x baseline). Not offered by any competing Amazon review scraper found on the Store — most only extract, they don't watch for anomalies.
• Rating trend, not a snapshot — rating_trend shows whether satisfaction is genuinely improving or sliding, computed across your whole monitored run history.
• Topic + severity triage — every actionable review is tagged topic (shipping/quality/support/pricing) and severity (critical/moderate/minor), so you know what to fix first.
• No fragile scraping — chains onto a maintained Amazon reviews actor instead of a homegrown scraper.
• Fair pricing — hard maxTotalChargeUsd cap; never billed without a result.

Input

• asins — Amazon product IDs to monitor.
• monitorEnabled / monitorId — persistent delta mode; first run is a free baseline.
• maxTotalChargeUsd — hard spend cap for Vigia's own charge.

You can also pass currentReviews directly if you bring your own review export.

Output

One row per actionable review: change_type, asin, rating, severity, topic, actionable, signals, text. Plus a RUN_SUMMARY.json with the aggregate review_signal, including velocity_spike_asins.

Pricing transparency

	Cost
Source (chained Amazon reviews actor)	billed by the scraper actor directly on your Apify invoice, not marked up
Vigia (delta, topic/severity triage, velocity-spike detection)	$0.020 per actionable review, $0 otherwise
Example: 5 ASINs, no actionable reviews this run	source cost only, $0 Vigia charge
Example: 5 ASINs, 3 actionable reviews + 1 velocity spike flagged	source cost + $0.06 Vigia charge
Cap	maxTotalChargeUsd (Vigia's own charge only)

FAQ

Does this actor fetch reviews from Amazon itself? No — it chains onto a licensed Amazon reviews actor and adds the delta, triage, and velocity-spike layer. Why only actionable reviews, not all of them? A 5-star review with no complaint doesn't need your attention or a charge — Vigia's job is to cut the noise, not resell every row. What counts as a velocity spike? A product's new-review count this run reaching at least 3x its own historical per-run average, with a minimum of 3 new reviews (so a product's first monitored run never false-flags on a normal small baseline).