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See what competitors carry that you do not

Assortment questions are matching questions. You cannot tell what a competitor carries that you do not until both catalogues resolve to the same product identities.

Canonical set differenceMethodBoth sides matchedNeedsGap and overlapOutput

Assortment planning

Set difference on identity

Once your catalogue and a competitor's both resolve to canonical products, gap and overlap are set operations rather than a manual review.

Assortment planning

Watch the delta

New products appearing in a competitor's assortment are an event, not a quarterly report.

Endpoints that do this

Where it lands in the API.

POST /v1/match

Bulk match

Send up to 10,000 of your own rows and get canonical ids back, each with a method and a confidence — including the ones we refuse to guess at.

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GET /v1/sellers

Seller directory

Every seller in the index, with how it is accessed, refresh cadence, identity strength and coverage. Coverage you can audit rather than take on faith.

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GET /v1/events

Events

Six event types, signed on delivery and replayable by cursor. Every consumer eventually needs to backfill a gap.

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Questions

Common questions.

Can this run continuously?

Yes. Once both sides are matched, additions and removals arrive as events as they happen.