| US Tariff Rates US import tariff lookup, landed-cost calculator and REST API for HTS codes. Each duty program is returned as its own layer rather than one combined rate. | Free $0.00; Pro $49.00 a month or $399.00 a year; Team $199.00 a month or $1,590.00 a year; Enterprise quoted. source | Free plan: 50 API requests a month, 10 rows per bulk lookup, 5 watchlist alerts. source | Public REST documentation and an OpenAPI 3.1 file. Hosted MCP server at mcp.ustariffrates.com, authenticated with the same API key. source | Lookup responses return a rate_stack of per-program duty layers (for example, base_mfn, section_122, section_232 and section_301), plus total_additional_pct and total_estimated. source | US imports only (US HTS). source |
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| USITC HTS search and HTS REST API The official online Harmonized Tariff Schedule, maintained by the USITC Office of Tariff Affairs and Trade Agreements. | No fee stated; search and API answered without login or key. source | Public, no account. source | REST API at hts.usitc.gov/reststop answered without a key: /search returns JSON; /exportList returns JSON or CSV. source | Publishes Chapter 99 headings (for example 9903.88.15) as separate HTS entries; does not compute a combined duty for a product. source | US only. source |
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| Avalara Cross-Border AvaTax Cross-Border calculates duties, import taxes and landed cost; separate tariff code classification products. | Not published for cross-border or classification products. source | Not stated for cross-border (the developer site's 90-day trial is for AvaTax). source | Public developer pages, including a Trade and Tariff Library queried over REST. source | Section 301/232 or Chapter 99 itemization not stated on the pages checked. source | Multi-country cross-border transactions. source |
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| Zonos Cross-border commerce platform for duty and tax calculation, HS classification and checkout. | Not published; /pricing leads to a contact-sales form. source | No standalone free tier stated; Landed Cost includes Zonos Classify classification. source | Public documentation, including a GraphQL reference. source | Section 301/232 or Chapter 99 itemization not stated on the pages checked. source | Duties, taxes and fees for over 200 countries and territories. source |
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| SimplyDuty Duty and tax calculator, HS code classification and APIs. | £0.10 per API call; monthly plans £9.99 (100 calls), £49.99 (500), £99.99 (1,000), £499.99 (5,000). source | 5 free calculations a day after registering. source | Classification and duty APIs; documentation in the account area after registering. source | 2025 reciprocal US tariffs applied through a TempTariff API object; Section 301/232 and Chapter 99 not named. source | No country coverage or count stated. source |
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| GingerControl US import tariff calculator and AI HTS classifier app. | Self-serve classification credit packs: $10 for 10, $45 for 50, $80 for 100 (stated on its comparison page; /pricing redirects to its FAQ). Larger plans quoted. source | No free tier stated; the site says the app is available to try. source | REST API with a Swagger UI at api.gingercontrol.com/docs; batches of up to 200 products per request, per the vendor. source | States MFN rates plus Section 301, 232, 122 and Chapter 99 surcharges in one view. source | US import duties from 200+ origin countries. source |
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| Gaia Dynamics AI tools for HTS classification and tariff calculation for customs brokers and importers. | Billed yearly: Free $0; Starter $99 a month; Pro $379 a month; Advanced $1,399 a month; Enterprise custom. Credit-based. source | Free plan (30 credits a year) and a 14-day trial without a card. source | API documentation is granted on request. source | States trade remedy duties under Sections 201, 232 and 301; Chapter 99 not named. source | No country count stated; HS lookup is for goods imported into the United States. source |
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| Descartes CustomsInfo Global trade research, HTS classification and landed cost tools from Descartes. | Not published. source | 14-day trial on request; credentials issued within 24 to 48 hours. source | API stated; no public API documentation found. source | Section 301/232 or Chapter 99 itemization not stated on the pages checked. source | Multi-country: 190+ countries on customsinfo.com, 175+ on descartes.com. source |
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| Thomson Reuters ONESOURCE Global Trade Global trade management suite: classification, trade content, screening, FTA, FTZ and export. | Not published; demo on request. source | No free tier stated. source | Content APIs stated for HS and ECN data; product-specific public documentation not found. source | Section 301/232 or Chapter 99 itemization not stated on the pages checked. source | Tariff schedules for over 220 countries and territories. source |
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| SAP Global Trade Services SAP module whose customs connection communicates with customs authorities' systems; integrates with other SAP products (SAP Help Portal, 2025). | Not found: the product page was unavailable when checked. source | Unknown: the product page was unavailable when checked. source | Not verified. source | Not stated in the 2025 user guide. source | The help portal tracks legal changes in different countries; no country count stated. source |
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| e2open Global Trade Global trade management applications backed by e2open's Global Knowledge regulatory database. | Not published. source | No free tier or trial stated. source | No public API documentation found. source | Section 301/232 or Chapter 99 itemization not stated on the pages checked. source | Customs schedules across 230+ countries and territories. source |
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