Put 13-country customs data on your site
Embeddable calculator widget + free data API. Sourced from official tariff schedules (USITC HTS / GACC / INSW…), including per-code US §301/§122 surcharges.
① Embeddable calculator (one line)
Copy-paste ready, with full 13-country tax stacks and US Section 301. Swap the trailing locale/country segments:
<iframe src="https://treayo.com/widget/calculator/en/us"
style="width:100%;max-width:420px;height:560px;border:1px solid #e5e3da;border-radius:4px"
title="Import duty calculator by Treayo" loading="lazy"></iframe>Supported country codes: us · india · indonesia · malaysia · philippines · thailand · vietnam · japan · korea · australia · brazil · mexico · china
② Free data API
GET /api/calculate
Line-by-line landed cost: duty + VAT + surcharges (incl. US §301 China / §122), in each country’s statutory order and base.
curl "https://treayo.com/api/calculate?country=us&hs=6109.10&fob=1000&origin=cn"
# → { taxLines: [ {key:"duty", rate:16.5, amount:165},
# {key:"s301", rate:7.5, amount:75},
# {key:"s122", rate:10, amount:100}, ... ],
# totalCashAtImport, effectiveTaxRate, warnings... }| Param | Description |
|---|---|
| country | destination code (13 markets) |
| hs | HS code (6–10 digits, nearest-leaf fallback) |
| fob | FOB value in USD |
| origin / co | origin country + certificate flag (FTA preference) |
| freight / insurance / port / broker | optional cost inputs |
Terms (free tier)
- Attribution required: public display of API data must credit “Data: Treayo (treayo.com)” with a clickable link.
- Rate limits: same per-IP limits as the site (burst 8/10s — ample for normal use).
- Data for reference only; no resale of raw data.
- Need higher limits / batch / commercial SLA? Self-serve plans are coming to this page.