Yahoo! JAPAN Web API logo

Yahoo! JAPAN Web API

LY Corporations developer portal — search, maps, shopping, Kakaku and Japanese-morphology text APIs.

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JP Est. 2005 Active Search / Recommendations API

Our Verdict

Indispensable for Japan-market apps needing local data and morphology, with uneven doc quality and TOS friction.

Pros

  • Broad free API portfolio spanning search, maps, and shopping
  • Japanese morphology APIs handle tokenization natively
  • Well-known stable brand under LY Corporation
  • Free tiers cover many prototyping use cases

Cons

  • Japanese-only documentation for many endpoints
  • Rate limits tight compared to Google equivalents
  • Some APIs deprecated or in maintenance mode
  • Terms of use restrict commercial reuse in some cases
Best for: Japan-market apps needing local search, maps, shopping, or Japanese-language tokenization. Not for: Global products or teams without Japanese-language support.

When to Use Yahoo! JAPAN Web API

Good fit if you need

  • Japanese morphological analysis API for NLP pipeline
  • Yahoo Japan shopping data for price comparison tools
  • Maps API for Japanese address and geolocation services
  • Web search API for Japanese-language content discovery
  • Kakaku price data integration for Japanese retail apps

Lock-in Assessment

Medium 3/5
Lock-in Score
3/5

Yahoo! JAPAN Web API Pricing

Pricing Model
free
Free Tier
Yes
Entry Price
Enterprise Available
No
Transparency Score

Beta — estimates may differ from actual pricing

1,000
1001K10K100K1M

Estimated Monthly Cost

$25

Estimated Annual Cost

$300

Estimates are approximate and may not reflect current pricing. Always check the official pricing page.

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