Euntae Jang

POTAL - 140 cross-border trade features. All free, forever.

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We benchmarked every feature from the top competitors (Avalara $1,500/mo, Zonos $4,000/mo, Global-e, Easyship) and made them all free. 140 features: HS Code classification (240 countries), Total Landed Cost, 1M+ duty rate records, VAT/GST, 63 FTAs, denied party screening, Shopify/WooCommerce/BigCommerce plugins, REST API, MCP server, 50 languages. Free for everyone — from small sellers to enterprise. Just use it.

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Euntae Jang
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Hi Product Hunt! I'm Euntae, solo founder of POTAL. I built this because existing landed cost APIs (Avalara, Zonos) charge $1,500+/mo and still get HS codes wrong 15-25% of the time. POTAL uses 9-field classification on 131,794 real government tariff lines — no AI guessing. The result: 100% accuracy at $0 to start. Try it at potal.app — no signup needed. Would love your feedback!
Euntae Jang

Hey Product Hunt! 👋

I'm Eun, a solo founder building POTAL.

The problem: if you sell products internationally, calculating

import costs is painful. Every country has different duty rates,

VAT rules, de minimis thresholds, and trade agreements.

Most sellers guess — and get it wrong.

Existing solutions cost $1,500+/month (Avalara) or $2/order (Zonos),

and still only cover ~190 countries.

So I built POTAL — an API that calculates the exact total landed cost

for 240 countries, using 113M+ tariff records.

What makes it different:

- 240 countries (not 190 or 200)

- 100% HS Code accuracy with structured input (not AI guessing)

- 63 FTAs auto-detected for duty savings

- MCP server for AI agents — works with Claude, ChatGPT, Gemini

- Free tier: 200 calls/month, no credit card

The entire tariff engine is built on codified government rules —

not machine learning predictions. When you input 9 product fields,

the system follows the exact same process a licensed customs broker

would use.

What I'd love feedback on:

1. Is the API response format useful for your use case?

2. Which countries/products should I prioritize for testing?

3. Would you integrate this into your ecommerce platform?

Try it free → https://www.potal.app

Thanks for checking it out! Happy to answer any questions. 🙏