the402 endpoint detail

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toolcall.click hs classify

https://toolcall.click/t/hs/classify

answers 402

Classify any product to its HS / HTS customs code from a plain-English description. Expert LLM classification grounded in the live official USITC Harmonized Tariff Schedule: returns the 10-digit HTS code, international HS6, official description path, US duty rate (general + special programs), confidence, reasoning and alternates. JSON response. $0.04 USDC per call, pay via x402, no API key.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.04
Network
base
Pay to
0x84FA7Ea8303d4f503267e2e998A3F7D980e814a5
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
353 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:10:58.977Z (34d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ftoolcall.click%2Ft%2Fhs%2Fclassify"