CustomsBridge TARIC Engine

CustomsBridge — AtoA Customs & TARIC Resolution Engine

High-throughput, deterministic customs classification, duty simulation, and import restriction engine built for autonomous procurement, freight forwarding, and cross-border trade agents.

Operated under the Unified Norms Engine (UNE) infrastructure.

🚀 Live Endpoints

• Live Hub: https://customs.une.education
• MCP Endpoint: https://customs.une.education/mcp.php
• OpenAPI 3.1 Spec: https://customs.une.education/openapi.json
• Agent Specification: https://customs.une.education/llms.txt

📦 Capabilities & MCP Tools

1. search_customs_nomenclature

Performs BM25 sub-5ms full-text search across 25,800+ official statutory commodity descriptions (English & French).

• Parameters:
  • query (string, required): Commodity description or keyword (e.g. electric motors, accumulateurs lithium, drones).
  • limit (integer, optional): Maximum results (1-50, default 5).

2. resolve_hs_code

Traverses the customs tariff tree starting from an international 6-digit Harmonized System (HS6) pivot code or exact TARIC 10-digit code prefix.

• Parameters:
  • code (string, required): 2 to 10-digit code prefix (e.g. 850440 for static converters/inverters).

3. calculate_customs_duties

Calculates official EU Common Customs Tariff (TDC/MFN) and import VAT (20%) on CIF value.

• Parameters:
  • taric_code (string, required): 6-digit HS code or 10-digit TARIC code.
  • cif_value_eur (number, required): Declared CIF customs value in EUR.
  • origin_country (string, optional): 2-letter ISO country code (default CN).

4. check_import_restrictions

Checks mandatory EU regulatory restrictions, required certificates (CE, RoHS, CBAM, REACH, CHED), and official document codes for SAD customs declaration (Box 44).

• Parameters:
  • taric_code (string, required): 6-digit HS or 10-digit TARIC code (e.g. 850440, 7208, 8541).
  • origin_country (string, optional): 2-letter ISO origin country code (default CN).

🌐 Sino-European HS6 Pivot

The 6-digit Harmonized System (HS6) is universally shared between China's GACC export nomenclature and the European Union's TARIC system. CustomsBridge uses HS6 as a deterministic cross-border pivot to resolve European import tariffs directly from Chinese commercial proformas.

🛠️ Architecture

• Engine: Stateless PHP 8.1 CLI / JSON-RPC 2.0.
• Database: SQLite 3 with FTS5 unicode61 tokenizer.
• Data Source: European Commission DG TAXUD / TARIC consolidation.
• State Proof: SHA-256 sealed cryptographic payload with eIDAS Art. 41 timestamping.