Ship between Mexico and the United States with customs clearance baked into every package. One API call handles HTS classification, duty calculation, carrier rate shopping, label generation, and CBP filing. Built for Shopify merchants, 3PLs, and any platform that moves packages across the border.
GMX.Express is the shipping platform behind this service. Use the dashboard to ship manually, or connect via API for automated fulfillment. Every shipment gets a licensed customs broker, AI classification, and real-time duty calculation — whether you ship 10 packages a week or 10,000 a day.
US law allows shipments valued at $800 or less to enter duty-free under the de minimis exemption (19 USC 1321). This is the backbone of cross-border e-commerce — most individual consumer packages qualify. We automatically assess eligibility based on declared value, product type, and country of origin. Products subject to Section 301 or antidumping duties may not qualify even under $800; our screening catches these exceptions before they become CBP holds.
For shippers moving thousands of de minimis packages daily, Type 86 entries provide a structured electronic filing pathway through CBP ACE. Each entry includes full 10-digit HTS classification and PGA screening data, giving CBP the targeting information they need while preserving your duty-free treatment. We process Type 86 entries at scale with automated PGA flagging — no manual review bottleneck.
Integrate via our REST API or install the Shopify plugin. GMX.Express provides a no-code dashboard if you prefer to ship without writing a single line of code. Connection takes minutes, not weeks.
We query Gori/ShipBae for US last-mile rates (USPS, FedEx, UPS, DHL) and Estafeta for Mexican domestic legs simultaneously. You see the cheapest, fastest, and best-value options side by side with duties and fees included in the price.
Once you choose a rate, we generate the shipping label, file the customs entry (Section 321 de minimis or formal entry), and trigger any required PGA notices. Your package ships with all paperwork done. Track it end-to-end from origin to doorstep.
Classification, duty calculation, carrier rate shopping, label generation, and customs filing — all in a single POST request. No orchestrating five different vendor APIs.
Shipments valued under $800 qualify for duty-free entry into the US under Section 321. We automatically determine eligibility and file Type 86 entries for qualified e-commerce packages at high volume.
Install our Shopify app to show accurate landed costs at checkout, prevent cart abandonment from surprise duties, and automatically fulfill cross-border orders with compliant shipping labels.
Bidirectional coverage. Ship northbound from Mexican warehouses to US consumers, or southbound from US brands to Mexican buyers. Both directions get the same classification, compliance, and carrier integration.
Unified tracking across carriers and border crossings. Your customers see a single tracking page, not three different carrier portals. Status updates include customs clearance milestones.
Calculate exact duties, taxes, and fees at the point of sale. No DDP surprises, no COD customs bills. Your buyers pay the real total at checkout and nothing more at delivery.
Try GMX.Express for no-code cross-border shipping, or plug our API into your existing fulfillment workflow. First 50 shipments include free classification.
Goldmex International, LLC · 2345 Michael Faraday Dr, Ste 8, San Diego, CA 92154
Licensed US Customs Broker \· Customs Intelligence Technology