The problem: HS codes alone are not enough
Most HS classification APIs return a tariff code and a confidence score. That is useful, but it is only one of the three things an EU importer needs for every shipment: the correct HS code, the regulatory risk (does this product trigger CBAM, GPSR, REACH, anti-dumping duties, or dual-use controls?), and the list of required import documents.
Without all three, you end up stitching together separate tools or, more commonly, discovering the compliance requirements after your goods are already at the border.
The table below compares what each platform returns in their classify response, based on publicly available API documentation and product pages. All claims were verified on 20 May 2026.
Feature comparison
| Feature | Import8 | Digicust | Zonos | Avalara | DutyDecoder | Pitney Bowes |
|---|---|---|---|---|---|---|
| HS/CN classification | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| CBAM / GPSR / REACH / anti-dumping flagging in classify response | ✓ | ~ Separate modules | ✕ | ✕ | ✕ | ✕ |
| Required import documents in response | ✓ | ✕ | ✕ | ✕ | ~ B2C tool only | ✕ |
| Per-element source citations (GIR / EN) | ✓ | ✓ | ~ Audit trail opt-in | ✕ | ~ GRI citations | ✕ |
| EU import specialization | ✓ | ✓ | ✕ E-commerce focus | ✕ US/global | ~ Partial | ✕ US/global |
Based on publicly available API documentation and product pages, verified 20 May 2026. ✓ = in classify response, ~ = partial or separate module, ✕ = not available in classify response.
What each row means
HS/CN classification
All six platforms return an HS or CN code with a confidence score. This is table stakes for any classify API. The difference is what comes alongside it.
Compliance flagging (CBAM, GPSR, REACH, anti-dumping)
Import8 returns compliance flags as part of the classify response: does this HS code trigger CBAM obligations, GPSR requirements, REACH restrictions, or anti-dumping duties? Digicust offers similar compliance capabilities, but through separate modules (AI Export Control, CBAM module, sanctions screening) rather than in the classify call itself. Zonos, Avalara, and Pitney Bowes do not return compliance flags in their classify API responses. DutyDecoder does not cover CBAM, anti-dumping, or dual-use.
Required import documents
Import8 returns the specific import documents required for each classification: certificates of conformity, CBAM declarations, phytosanitary certificates, and other product-specific requirements. DutyDecoder mentions document types in its output (as a B2C calculator tool, not a production API). The other platforms do not include required documents in their classify response.
Per-element source citations
Import8 cites the specific General Interpretive Rules (GIR) and Explanatory Notes (EN) that justify each classification decision. Digicust provides GIR-based reasoning for classification steps. Zonos offers an optional audit trail. DutyDecoder shows GRI citations. Avalara and Pitney Bowes do not provide tariff-schedule-level citations in their classify output.
EU import specialization
Import8 is built specifically for EU imports: CN codes (not just HS-6), EU-specific measures, Dutch customs integration, and EU regulatory frameworks (CBAM, GPSR, REACH). Digicust is also EU-focused (German origin, European customs workflows). Zonos targets e-commerce (Shopify stack, landed cost). Avalara and Pitney Bowes are US-origin enterprise platforms with global coverage but no EU regulatory specialization. DutyDecoder covers 50+ countries with partial EU support.
About each platform
Digicust
German AI customs platform for freight forwarders and customs declarants. Offers HS classification with GIR-level reasoning, plus separate modules for export control (ECCN/dual-use), anti-dumping screening, CBAM reporting, and sanctions checks. Closest competitor to Import8 in feature breadth, with the key difference being that Import8 delivers compliance data in the classify response itself, while Digicust spreads it across dedicated modules.
Zonos
AI-powered classify API focused on e-commerce and landed cost calculations. Returns HS codes with confidence scores, alternative codes, and an optional audit trail. No compliance flags, no required-documents list, no risk-level assessment in the API response. Marketing mentions “flag restricted items” but the API documentation does not include restricted-goods fields.
Avalara AvaTax Cross-Border
Enterprise landed-cost and tax compliance suite. Calculates and estimates customs duties and import taxes in real time. Marketing claims the platform “flags items with restrictions”, but the public API specification does not confirm restricted-goods fields or required-documents output. US-origin, global coverage.
DutyDecoder
Free AI-powered import duty calculator for 50+ countries. Claims to “flag restricted goods” and mentions document types in its output. However, it is a B2C browser tool — not a production API — and explicitly excludes sanctions screening, dual-use controls, and anti-dumping duties from its scope.
Pitney Bowes
Enterprise cross-border delivery service. The classify API returns only HS code and a quality level (HIGH/MEDIUM/LOW). Compliance checks happen post-shipment as a backend filter — not as part of the classification response. Merchants must manually flag hazmat items.
See the difference for yourself
Classify a product and get HS code, risk level, and required import documents in one response. Start with 5 free credits — no credit card required.
Methodology
This comparison is based on publicly available API documentation, product pages, and feature descriptions from each platform. All sources were verified on 20 May 2026. We only include claims that can be confirmed from public documentation — where a feature is mentioned in marketing copy but not confirmed in API specifications, we note the discrepancy. If you represent one of the platforms listed and believe any claim is inaccurate, contact us and we will update this page.
Last updated: 27 May 2026. Product features and API capabilities change over time. Always verify current capabilities with each vendor directly.
