Location aware
Compare values only inside the same documented marketplace context.
Price monitoring
Observe price changes without maintaining parsers.
Combine product and offer calls with freshness metadata to build bounded, marketplace-aware monitoring workflows.
Why it matters
Context makes data usable.
A reliable monitor needs more than a price number: it needs currency, condition, seller, delivery context, cache state, and a durable observation time.
REQUESToffers · one successful unit
POST /api/graphql
operation: offers
variables: {
"asin": "B0D1XD1ZV3",
"domain": "US"
}Freshness visible
Store fetched time and cache state alongside each observation.
Failure safe
Non-billable failures stay distinguishable from a real out-of-stock state.
Start with the contract, then verify with data.
Use the playground for a bounded live call, inspect freshness and request metadata, and move to production only after your fixture checks pass.
Open the playground