Japan Market Data for AI Developers
Every Japanese marketplace — Mercari, Yahoo Auctions, Rakuten, Mandarake, DLsite, SUUMO — runs on language walls and API restrictions that exclude English-speaking developers. There is no single queryable source for Japanese resale prices, real estate transactions, or collectible demand.
This project closes that gap.
What's available
55 production-grade Apify actors covering every major Japanese data vertical:
| Category | Actors | Examples |
|---|---|---|
| Resale marketplaces | 12 | Mercari Japan, Yahoo Auctions JP, Rakuten, Hard Off OffMall |
| Collectibles | 8 | Mandarake, Suruga-ya, anime figures, trading cards |
| Real estate | 4 | SUUMO rentals, MLIT transaction prices (47 prefectures), property hazard zones |
| Automotive | 4 | Goo-net cars, Goobike motorcycles, upgarage parts |
| Electronics | 4 | Used cameras (Kitamura), smartphones (IOSYS), watches (Jack Road) |
| Luxury & fashion | 3 | Komehyo, kimono market, luxury brands |
| Government & stats | 6 | JMA weather, MHLW medical, corporate numbers, minimum wage, JEPX electricity |
| MCP servers | 8 | JSON-RPC servers for Claude/Cursor/any MCP client |
Total lifetime runs: 4,894+ across all actors. All free to run on Apify's pay-per-use model.
Quick start
Via MCP (recommended for AI agents)
npm install -g @atushi1841/japan-market-mcp Add to your .mcp.json:
{ "mcpServers": { "japan-market": { "command": "npx", "args": ["-y", "@atushi1841/japan-market-mcp"] } } } Call tools like mercari_search("anime figure", 20) directly from Claude or Cursor.
Via Apify API (Python)
from apify_client import ApifyClient client = ApifyClient("YOUR_APIFY_TOKEN") # free tier: 1M credits/month run = client.actor("atushi1841/mercari-japan-search-scraper").call({ "searchQuery": "fujifilm x-series", "maxResults": 30 }) results = run["data"]["items"] Via Apify API (Node.js)
const { ApifyClient } = require("apify-client"); const client = new ApifyClient(process.env.APIFY_API_TOKEN); const run = await client.actor("atushi1841/yahoo-auctions-japan-scraper").call({ keyword: "Pokemon card", maxResults: 50 }); Full examples in examples/.
Why this exists
Japan's secondhand and collectibles market is worth ¥4.4 trillion (2024). Mercari Japan alone has 231 million monthly active users. Yet every major data source — Mercari, Yahoo Auctions, Rakuten, Mandarake — requires:
- Japanese language fluency
- API keys that don't exist (most don't have public APIs)
- Proxies to bypass geo-restrictions
No single tool aggregates this data in a developer-friendly format. These 55 actors do exactly that: one click, structured JSON, no credentials needed beyond a free Apify account.
Data quality
Every actor outputs consistent JSON with:
-
title,price,currency,url -
seller,condition,images[] -
scraped_at(ISO 8601 UTC) - Source-specific fields (e.g.,
prefecturefor real estate,brandfor cameras)
The top 10 actors by run count have been running daily for 30+ days with 99%+ success rates.
The full catalog
| # | Actor | Category | Runs |
|---|---|---|---|
| 1 | japan-market-mcp | MCP bundle | 604 |
| 2 | japan-offmall-market-scraper | Hard Off OffMall | 376 |
| 3 | mandarake-auction-scraper | Mandarake Auctions | 348 |
| 4 | tackleberry-japan-fishing-tackle-scraper | Fishing tackle | 247 |
| 5 | mercari-japan-search-scraper | Mercari Japan | 177 |
| 6 | japan-used-camera-market-scraper | Used cameras | 167 |
| 7 | yahoo-auctions-japan-scraper | Yahoo Auctions JP | 163 |
| 8 | japan-watch-market-scraper | Watches | 151 |
| 9 | japan-luxury-brand-market-scraper | Luxury brands | 149 |
| 10 | japan-kakaku-price-search | Kakaku.com | 148 |
→ Full 55-actor catalog + all links
MCP Registry
All 8 MCP servers are registered on the official MCP Registry:
Search io.github.atushi1841 to find:
-
japan-market-mcp— Cross-shop price comparison -
rakuten-japan-mcp— Rakuten Ichiba search -
mandarake-surugaya-mcp— Collectibles -
japan-fuel-price-mcp— Gas/diesel/kerosene prices -
japan-jepx-mcp— Electricity spot prices -
japan-property-hazard-mcp— Flood/landslide risk -
japan-minimum-wage-mcp— Prefecture wage data -
japan-intel-mcp— Earthquakes, weather, typhoons, EDINET
Related projects
- Kensho — Japanese prize-post automation (the source of this data pipeline)
- kensho-datasets — Weekly structured data releases
- DLsite price tracking — Doujin price analysis
License
MIT — use freely. Star the repo if it helps your project.
Built by atushi1841 · GitHub · Apify Store
