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Zactr
Adapt Intelligently, Sell Better
ENDE
✦ Observed Amazon marketplace intelligence

See the evidence behind your Amazon offers.

Buy Box, seller, offer, promotion, and price-history analysis.

Zactr organizes observed marketplace data into review queues, competitor comparisons, and source-timestamped actions.
Observed Buy Box movementOffer competition
Source-timestamped evidence

Core Features

Observed marketplace evidence and seller intelligence for Amazon operators.

Buy Box evidence

Compare observed ownership, price, fulfillment, and seller changes.

Offer comparison

Review seller price against the Buy Box and lowest observed FBA and FBM offers.

Promotion intelligence

Normalize coupons and Amazon Resale offers into effective customer prices.

Copilot and API

Ask questions or pull source-timestamped marketplace evidence by API.

⌕ API access

Pull Zactr evidence into your own tools

Use metered endpoints for observed product, seller, offer, Buy Box, and portfolio data.

View API page
? FAQ

How is Zactr different?

Zactr joins observed product, seller, offer, Buy Box, promotion, and price-history evidence.

Does Zactr know my sales or inventory?

No. Zactr does not infer seller units, revenue, profit, margin, or inventory on hand.

What can I do with the API?

Get source-timestamped product, seller, competition, and portfolio evidence in JSON.

✉ Contact

Talk to Zactr

Tell us your marketplace, ASIN count, and the evidence you want reviewed.

Verify your email before sending a message.
▤ Evidence notes

Operator notes

How to interpret marketplace observations without overstating what the data proves.

OBSERVED STATE

Read Buy Box changes in context

Compare price, seller, fulfillment, and capture time before acting.

OFFER QUANTITY

Treat thin offers carefully

Observed offer quantity is not seller inventory or a stockout forecast.

CONDITION MATTERS

Separate resale from new offers

Amazon Resale inventory should not trigger automatic new-condition price matching.