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API

Seller and product API for Gold, full marketplace intelligence API for Platinum.

Zactr Marketplace Intelligence API

Amazon product and seller data, one GET away.

Buy Box state, offer competition, price history and seller portfolios as clean JSON. Built for seller tools, dashboards and action queues — live on the German marketplace today.

Bearer-key authJSON responses2,500 req/min on PlatinumGold from your first seller
quickstart — your first call in 30 seconds
# 1. Create a key in your workspace, then call:
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://zactr.com/api/zactr/product?asin=B08N5WRWNW"

# 2. Batch a whole watchlist in one request:
curl -X POST -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"asins":["B08N5WRWNW","B09G9FPHY6"]}' \
  "https://zactr.com/api/zactr/portfolio"
Live endpointsProduct · Seller · Portfolio
GOLDOne seller + tracked ASINs
PROFull API · 2,500/min
Response formatJSON · Bearer key auth

Live API resources

GET/api/zactr/product

Product object with title, brand, category tree, Buy Box, offer competition, price history and market statistics.

Product
GET/api/zactr/seller

Seller object with identity, rating history, observed ASIN portfolio, Buy Box ownership and competitor overlap.

Seller
GET/api/zactr/portfolio

Batch product and market evidence for tracked or supplied ASINs. Useful for watchlists and seller dashboards.

Portfolio

Sample response

GET /api/zactr/product?asin=B08N5WRWNW

{
  "asin": "B08N5WRWNW",
  "domain": "de",
  "title": "Echo Dot (5th Gen) smart speaker",
  "brand": "Amazon",
  "buy_box_price": 54.99,
  "buy_box_seller_id": "A1AMZNDE12345",
  "offer_count": 17,
  "avg30": 58.42,
  "avg90": 61.10,
  "buy_box_risk_score": 0.31,
  "recommended_action": "monitor"
}

Marketplace intelligence fields

Product object Live API

ASIN-level marketplace state for research, tracking and action queues.

asindomaintitlebrandcategory_treebuy_box_pricebuy_box_seller_idoffer_countavg30avg90price_series

Seller object Live API

Seller identity, storefront coverage and competitive position.

seller_idbusiness_namehas_fbarating_historyasin_portfoliobuy_box_ownership_ratecompetitorscontact_state

Tracked ASIN object Workspace

ASINs saved by a seller for repeated checks, reports and future API exports.

watchlist_idasinseller_idsourcelast_checked_atprice_gapoffer_pressureaction_state

Category object PRO API

Category structure and opportunity signals from completed snapshots.

category_idpathdepthproduct_countseller_countamazon_sharefba_shareopportunity_scoreconfidence

Bestseller object PRO API

Rank-list movement with entrants, exits, persistence and velocity.

asincategory_idrankprevious_rankrank_deltavelocity_7dpersistence_daysentrantexit_risk

Deal object PRO API

Promotion, coupon, discount and Lightning Deal evidence connected to ASINs and categories.

deal_typecoupon_statediscount_percentprice_beforeprice_afterrank_beforerank_afterpromotion_score

Keyword object PRO API

Demand context from Google Trends, marketplace rank pages, search pressure and portfolio fit. This is not a raw Keepa keyword field.

keywordlanguagetrend_7dtrend_30dbreakout_stateseasonality_scorecategory_fitrecommended_test

AI score object PRO API

Decision scores turning marketplace evidence into action priorities.

opportunity_scorebuy_box_risk_scoreoffer_pressure_scoredemand_scorepromotion_scorerecommended_actionconfidence

Category Buy Box object PRO API

Category-level ownership view showing who holds Buy Box visibility and where concentration is shifting.

category_idseller_idbuy_box_asinsbuy_box_sharetop_competitorsownership_delta_7dconcentration_index
Live now: product, seller and portfolio endpoints. Gold can query only one verified seller and that seller's own or tracked products. Category, bestseller, deal, keyword, AI score and category Buy Box objects are Platinum API scope.

Ready to query the marketplace?

Create a workspace, verify your first seller and get a bearer key — no sales call needed.