GroundTruth API US Tariff & Landed Cost Estimator (n8n)

Instantly estimate 2026 US duty & landed cost with the GroundTruth API in n8n

GroundTruth API US Tariff & Landed Cost Estimator (n8n) turns a few basic import details into a clear customs cost forecast—estimated 2026 US duty (including stacked tariffs), MPF/HMF fees, and total landed cost—returned as a formatted summary (with optional raw JSON export).

What this workflow does

• Collects inputs such as product description, origin country code, declared value, and optionally arrival mode.
• Calls the GroundTruth API by sending those inputs as query parameters to the GroundTruth /try HTTP endpoint.
• Extracts key results from the API response, including:
  • duty rate
  • total customs duty (including stacked tariffs)
  • MPF/HMF fees
  • total landed cost
• Generates a readable summary for quick review in your automation flow.
• Optionally outputs raw data by converting the GroundTruth response into a binary JSON file for download or storage.

Use cases

• Pre-check landed costs for 2026 import planning before placing purchase orders.
• Automate customs estimates from a webhook, form, or Google Sheets—returning duty and landed cost to stakeholders.
• Volume-ready pricing workflows by switching from the /try endpoint to the GroundTruth /v1/tariff endpoint with an x-api-key header.

Technical details (n8n)

• Nodes: set, http request, convert to file
• API integration: GroundTruth API via HTTP request (default: /try endpoint)
• Upgrade path: use /v1/tariff and add your GroundTruth API key in the x-api-key header for higher volume
• Output: formatted summary + optional raw JSON file output

Ideal for n8n users, automation engineers, and SaaS operators who need reliable US customs tariff and landed cost estimates powered by the GroundTruth API.