Derived, not declared
The contract distinguishes an estimate from marketplace-reported availability.
Stock estimates
Inventory signals with explicit uncertainty.
Produce bounded stock estimates using versioned rules and retain the observation context used for the result.
Why it matters
Context makes data usable.
Marketplace inventory is not a guaranteed warehouse count. Glade exposes a derived estimate with version and evidence metadata instead of overstating precision.
REQUESTstock · one successful unit
POST /api/graphql
operation: stock
variables: {
"asin": "B0D1XD1ZV3",
"domain": "US"
}Model traceability
Every result is associated with a ruleset version and observation time.
Historical safety
New model versions do not silently mutate previously stored estimates.
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