{"uid":"cap_feoT81FHDQja0CEhVIwCG","slug":"dutyfinch-section-301-tariff-checker-b0898e94","name":"Dutyfinch Section 301 Tariff Checker","description":"Every US duty rate and China tariff, one call. HTS code lookup + Section 301 tariff checker API and MCP Try it free in one click, no sign-up.","url":"https://dutyfinch.cybermaxtools.com/x402/api/section301?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}}},"output":{"type":"object","properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.012","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.012/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.012","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.012","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_aH-oQ-YNHIV-moiV00m65","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.012","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns US import duty rates and China Section 301 tariff data for a given HTS code in a single API call","exampleAgentPrompt":"What's the US duty rate and Section 301 China tariff for HTS code 8471.30.0100? I need to know the total import cost before placing a purchase order.","exampleUseCases":[{"title":"Landed cost calculator for sourcing team","prompt":"We're sourcing laptop computers from China under HTS code 8471.30.0100 — what's the base US duty rate plus any Section 301 tariff so we can calculate our landed cost?"},{"title":"Compliance check before shipment","prompt":"Before our shipment from China clears customs, can you look up whether HTS code 6203.42.4011 is subject to Section 301 tariffs and what the total duty rate will be?"},{"title":"Product pricing adjustment for China imports","prompt":"I'm repricing our product line due to tariff changes — can you pull the current US duty rate and Section 301 tariff for HTS code 9403.20.0010 so I can update our margins?"}],"resultDescription":"A JSON object containing the HTS code's base US MFN duty rate and the applicable Section 301 China tariff rate (if any), allowing calculation of total import duty burden for goods sourced from China.","failureModes":["Invalid or malformed HTS code returns an error response","HTS code not found in database returns empty or null rates","Missing required query parameters results in 400-level error","Stale tariff data if Section 301 lists have been recently updated","Network timeout or service unavailability returns 5xx error"],"whenToPreferThis":"Choose this endpoint when you need both the standard US MFN duty rate AND the Section 301 China-specific tariff in a single call, avoiding the need to query multiple trade databases separately. Ideal for agents automating landed cost calculations, compliance checks, or pricing models for goods imported from China. Preferred over manual CBP lookups or multi-step trade data APIs when speed, simplicity, and combined duty information matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:37:28.283Z","isFirstParty":false,"canonicalSlug":"dutyfinch-section-301-tariff-checker-b0898e94"}