Quote a guaranteed landed cost including duties, taxes, and fees at cart using the Zonos Landed Cost GraphQL API
domain: zonos.com · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Provision Zonos API credentials and select the Landed Cost product in the account dashboard
Submit cart line items with product descriptions and, if known, HS codes to the Landed Cost GraphQL query
Allow Zonos Classify to auto-assign HS codes for items without a supplied classification
Read the returned duty, tax, and fee breakdown along with the guaranteed total landed cost
Display the landed cost total to the shopper at checkout before payment capture
Reconcile actual customs charges against the guaranteed quote using Zonos's billing data if a discrepancy claim is needed
Known gotchas
The guarantee only holds if the checkout flow does not let the cart change (items, quantities, or destination) after the quote without re-querying landed cost
Zonos charges a per-order guarantee fee plus a percentage of calculated duties and taxes, which is typically passed to the shopper as a line item, not absorbed silently
HS code auto-classification confidence varies by product description quality — vague descriptions increase the chance of a miscategorized, non-guaranteed line item
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