Who held your buy box, and when.
One call returns the observed buy-box owner timeline for an ASIN, the price each seller was charging, and every current offer with seller IDs. The data layer for MAP and brand-protection monitoring — built for teams who want to run their own.
- ✓Buy-box owner segments with the seller on each
- ✓Per-seller price series, with seller IDs and feedback
- ✓Every current offer, FBA/FBM and buy-box flagged
- ✓Days each seller actually held the buy box
- ✓BSR rank history alongside it, since Oct 2023
- ✓One call per ASIN — half a credit, from the warehouse under 100 ms; the history series alone for 0.05
What it answers.
- Did an unauthorised seller take my buy box? Segments name the seller that held it and the window they held it for, so you can see a takeover rather than infer it from a single snapshot.
- How long did they hold it? Each segment carries the days we actually observed that seller in the buy box — not an estimate.
- Did my price move when they took it? The per-seller price series runs alongside, so you can line up a buy-box loss with what each seller was charging that day.
- Who else is on the listing right now? Every current offer with seller ID, feedback percentage, FBA/FBM and buy-box flag.
Search your own products. See what the API returns.
The demo doubles as a coverage check: enter one of your ASINs, a barcode, a keyword or an Amazon product link. A product we hold shows its full record and history; one we don’t hold yet is fetched live from Amazon.
Hit Full price, rank & seller history on any result. The buy-box owner timeline is the first block — on many ASINs you can watch the listing change hands and change back.
The operator network behind a brand, live.
This is the real Nike seller network — every brand below shares Amazon buy-box sellers with Nike, drawn from our observed daily record. The Logimu API serves exactly this object: GET /v1/brand/network?brand=Nike&country=us returns the nodes[] and weighted edges[] you see drawn here, one credit per hop. Hover a brand for its numbers; click one to recenter; type any brand to map it.
Node colour is the brand’s heat (seller pressure: how many sellers per listing and how fast that is rising), size is its catalogue, distance is how many sellers two brands share. Counts and shares from observed buy-box data, refreshed daily — never estimates. Available on every paid plan. Endpoint reference →
How it compares.
| Logimu | Keepa | Live-scrape APIs | Proxy / scraper stacks | |
|---|---|---|---|---|
| Buy-box owner history | First-class field, half a credit per ASIN | Yes, on paid plans — derived from the offers object | Not available | Only if you collected it yourself |
| Per-seller price series | Included | Limited | Not available | Build it yourself |
| Brand-protection tooling | Data layer only — you build the monitoring | None marketed | None | None |
| Pricing model | Monthly plans with a renewing credit allowance; subscriber top-ups usable over 90 days | Monthly token buckets | Per request | Per request + proxies |
| Typical monthly cost, 500 ASINs daily | about $8 | €49+ tier | n/a | n/a |
What this is not.
This is a data API, not a takedown service. It tells you what happened on your listings; it does not file complaints, contact sellers, or enforce anything. If you want monitoring run for you — alerts, dashboards, unauthorised-seller tracking — that is a product, not an endpoint, and it is priced accordingly across the market.
One honest limit. Buy-box segments span the days we observed — a gap between segments is unobserved time, not proof the owner changed.
Derived intelligence: what the observations add up to.
Every product we observe is also an observation about a brand, a seller and a category. The same key serves those aggregates — computed daily from observed buy-box data, never estimated, with data_source on every answer.
- Brand dossier —
GET /v1/brand: how many sellers win the buy box on a brand, Amazon’s own share, FBA penetration, seller concentration and churn, trend grades, benchmarks against its category, the top sellers; monthly history on request. - Seller map —
GET /v1/brand/network: the brands connected to a brand because the same third-party sellers win the buy box on both — weighted edges and node metrics, one hop per call. See it drawn live on the homepage → - Operator footprint & category landscape —
GET /v1/seller/brands,/v1/seller/network,/v1/category: every brand a seller was observed winning on, the sellers that win beside it, and a category’s size, Amazon share, FBA share and concentration — plus ranked lists of brands, sellers and categories.
1 credit per record, 1 per page of 25 rows, lookups and misses free; part of every paid plan. Endpoint reference →
Amazon stats inside Claude & ChatGPT.
Prefer tool calls in your assistant over raw API calls? Webotee AI Connect puts this same Amazon data to work inside Claude & ChatGPT — product search and shopping lookups like this API’s, plus a wide set of Amazon market stats and research tools: brand intelligence, seller networks, niche & category discovery, and AI-assisted evaluations grounded in observed data. Built by the team behind Logimu; plans from $19/month.
Plans from $19/month. 14-day money back.
Solo is 25,000 credits a month: roughly 50,000 ASIN lookups with full buy-box and seller history, or 500,000 with the history series alone.
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