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Commerce intelligence for digital goods, ebooks and software
Digital goods price differently from physical ones: no shipping, no stock, but aggressive regional variation, frequent promotional windows, and the same title sold under several editions and formats.
Digital goods & ebooks
Editions and formats are variants
Hardcover, paperback, ebook and audiobook of one title are variants of one work, each with its own price. Comparing across formats without saying so produces a meaningless spread.
Digital goods & ebooks
Promotional windows
Digital pricing runs on short, deep promotions rather than gradual markdown. History with time weighting is what separates a genuine two-day drop from a permanent repricing.
Digital goods & ebooks
Subscriptions are not purchases
A subscription price and a one-time price are not comparable. Offer type carries the distinction so recurring and outright cost are never averaged together.
Endpoints that do this
Where it lands in the API.
Search commerce
Keyword and structured search across every connected seller. Returns canonical products with live offers, spread and a verdict — not raw listings you have to deduplicate yourself.
History
The observation series. Append-only — nothing is ever updated, so a replay reconstructs exactly what you were told and when.
Price context
Is this actually a good price? Percentile against the product's own history at that seller, time-weighted, with low, median and high.
Questions
Common questions.
Are ebooks matched by ISBN?
Where an ISBN is published, yes, with the check digit verified. Where it is not, matching falls back to title, author and edition with the resulting confidence published on the match.