Japan Commerce API Platform

We already built the Japan layer.

Official and public Japanese data, normalized for global developers. Add address, company, qualified-invoice, compliance, and profitability capabilities without integrating Japan-specific systems one by one.

Try Japan Market Check Start free Explore Japan Commerce Try API now View docs

Japan-specific
integration
Source-backed
provenance
Four APIs
one layer

# Your first production request — after creating a free key

curl -X POST https://api.japanapistore.com/v1/sellability/check \
  -H "Authorization: Bearer ${JAPAN_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{"product_name":"Bluetooth speaker","wireless_function":true}'

{
  "status": "REVIEW_REQUIRED",
  "confidence_score": 68,
  "missing_information": [
    {"field":"technical_conformity_number","priority":"CRITICAL"}
  ]
}

HTTP 200 · request ID · source-backed result

FREE JAPAN MARKET CHECK

Not sure if your product can be sold in Japan?

Enter five simple details. We check selling rules and estimated profit, then show the next steps in plain English.

Try the free check No login · No API key · Free rate-limited trial

1Tell us about the productName, category, origin and prices
2Run one simple checkNo technical knowledge needed
3Understand the resultCan I sell it? Could it make a profit?

FROM ZERO TO A REAL RESPONSE

Try Japan data now. Put it in your product in minutes.

No account is required for the first browser demo. The Developer plan includes 1,000 requests each month and needs no credit card.

1Try without signing up
Run a live, rate-limited demo against Japan data.
Try a company lookup →
2Create a free API key
Sign up, name the key, and copy it once.
Get a free key →
3Copy and run
Use cURL, Python, TypeScript, Postman, or MCP.
Open the 2-minute guide →

First 200 OK Postman GitHub-ready kit Japan Commerce MCP

AVAILABLE APIs

4 APIs across the Japan integration layer.

Normalize addresses, resolve Japanese companies and official records, check sellability, and estimate profitability while keeping provenance and limitations explicit.

Core product decision API

Japan Sellability API

Can I sell this product in Japan? Check whether a sale may proceed, what regulations or conditions apply, and what information still needs confirmation before launch.

Japan sales eligibility
Regulations and conditions
Actions required before launch
Official sources and missing facts

Try it free Read the Docs Try on RapidAPI Open Console

A Japan sales decision in one response

Can it be sold?Sellable, conditional, review-required, and not-sellable outcomes stay explicit.

What must be checked?Relevant regulations, sales conditions, and missing facts remain visible.

What should happen next?Required actions and official sources support the next decision.

Can I sell it?How much could I make?

Profit estimation API

Japan Profitability API

Estimate how much profit you could make selling a product in Japan.

Use it alone, or combine it with Japan Sellability API to check whether a product can be sold in Japan and estimate its potential profit in one workflow.

Marketplace fees and costs
Japan Customs FX
Estimated profit and break-even price
Confidence and assumptions

Try it free Read the Docs Try on RapidAPI

A clear Japan profit estimate

How much could I make?Estimated revenue, total cost, profit, margin, and break-even price stay together.

What costs are included?Marketplace fees, FX, logistics, duty, and tax remain visible instead of becoming a black box.

How reliable is the estimate?Confidence, assumptions, missing facts, and Sellability status remain explicit.

Better together

One simple Japan market decision flow.

First check if your product can be sold in Japan. Then estimate how much profit you could make.

Product
→
Sellability Check
→
Profit Estimate

Sellability APICan I sell this in Japan?

Regulations
Restrictions
Required review
Sellability result

Profitability APIHow much could I make?

Marketplace fees
FX
Costs
Estimated profit
Confidence

BeforeRegulations, restrictions, FX, marketplace fees, costs, and profit checked separately.

With JAPAN API STORECan I sell it?→How much can I make?

Built to work together

Japan Profitability API can use Japan Sellability API results, so regulatory status and profitability can be evaluated in the same workflow.

Also works independently.

Two APIs. One simple Japan market decision flow.

Business data API

Japan Business Mix API

Find and understand Japanese companies. Get company identity and supported location context in a structure global teams can use.

Corporate name normalization
前株 / 後株 handling
Nationwide Address Mix enrichment
Source and freshness provenance

Try it free Read the Docs Try on RapidAPI Run in Postman

Japanese business research in one request

Unified public dataCorporate, address, registrations, filings, demographics, and context.

Candidate-safe matchingAmbiguous names remain visible instead of being guessed.

Fail-soft providersOne unavailable source does not erase useful facts from the others.

Address data API

Japan Address Mix API

Use Japanese addresses correctly. Search, normalize, and organize complex address data without hiding uncertain matches.

Postal code lookup
Address normalization
Official data enrichment
Match and coordinate precision

Try it free Read the Docs Try on RapidAPI Run in Postman

日本の面倒なAPI接続を、すぐ使える形に。

法人確認、住所検証、インボイス、自治体、商品規制、利益計算まで8本。既存と同じAPIキー・料金・利用上限で、OpenAPIとMCPからも使えます。

国内API 8本を見る Global APIs

START WITH THE JOB

One Japan layer, four ways to ship.

Choose the outcome you need; the platform shows which APIs and tools fit.

Sell products in JapanSellability + Profitability Verify a Japanese supplierBusiness + Address Build a Japan marketplaceAll four APIs Give an AI agent Japan capabilitiesJapan Commerce MCP

Explore use cases

JAPAN COMMERCE MCP

Give your AI agent a Japan commerce layer.

Fourteen bounded lookup, verification, decision, and compute tools use the same authentication, limits, provenance, and safe uncertainty as the APIs.

View MCP setup Start free

Simple plans with a hard monthly limit.

Start with 1,000 requests per month at no charge. Paid plans have no automatic overage. Review pricing.