Follow a production-safe classification and tax quote flow, keep live secret keys on your server, and use the API reference for the complete request and response contract.
Use Scalar and curl to classify a product and request a tax and duty quote without creating a payment or moving money.
Building a complete checkout? Watch the full Custom API walkthrough.
Integrating with Medusa? Watch the Medusa setup-to-transaction walkthrough.
sk_live_* in your server environment. Never expose it in browser
code, source control, logs, or recordings.
POST /v1/classifications to obtain the HS tariff code required by
the quote request.
POST /v1/tax_quotes with integer minor-unit amounts
and the destination country.