Japan Market Mcp

io.github.atushi1841Published by GitHub account atushi1841v0.4.5Updated Oct 30, 2026

Compare used-good pric Apify:apify.com/fruitful_quintessence | Gumroad:atushi5.gumroad.com/l/kutuxe

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Overview

AI-generated overview

MCP server that lets an assistant compare used and new prices across Japanese shops, plus wholesale produce data, in single tool calls.

What you can do
  • Search used cameras, watches, luxury goods and instruments across paired Japanese shops, with price, brand, shop, condition and link per item
  • Search general used goods at OffMall, new prices at Kakaku.com, and used cars at goo-net, including min/max/avg/median price stats by model
  • Query Rakuten Ichiba items by keyword, price range and sort, and fetch best-seller rankings
  • Retrieve official MAFF wholesale market reports, price trends and year-on-year movers for fresh produce, and list available markets
When to use it
Useful for reseller arbitrage, price monitoring and market research on the Japanese second-hand market, or for checking new retail and wholesale produce prices in Japan. Each tool takes a keyword and returns crossed shop results, so one call replaces site-by-site scraping.
Requirements
Runs as a local process (Python package, Docker, or an MCP bundle) or as a hosted Apify endpoint. The hosted and HTTP modes need an Apify API token, passed as APIFY_TOKEN or in an Authorization Bearer header. Network access to the underlying shops and Apify actors.
Before you install
Usage is billed per event (about $0.001 per search plus an actor start fee), so repeated queries cost money. The Apify API token is a credential and should be kept out of shared configs. Results are collected from third-party shops and Apify actors, and the README notes some listings and registry entries are still pending verification.

Installation

In SourceWeft

  1. Open Japan Market Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

Japan Market MCP — Cross-Shop Price Comparison for AI Agents

An MCP server that lets AI agents (Claude, Cursor, VS Code Copilot, ChatGPT) compare used-good prices across leading Japanese shops in a single tool call. Instead of scraping site by site, an agent queries one server and gets inter-store price gaps for the same product — perfect for reseller arbitrage, price monitoring, and market research on the Japanese second-hand market.

How it works

The server wraps market-scraping and official-API actors (Rakuten Ichiba included) behind one MCP endpoint. Each tool returns price, brand, shop, condition and a link per item, with the shop-pair crossed so you see the price spread at a glance.

Available tools

ToolMarketShop pair
search_camera_marketUsed cameras & lensesKitamura + Fujiya Camera
search_watch_marketLuxury watchesJackroad + Kitamura used watches
search_luxury_marketUsed luxury brandsKomehyo + Jackroad
search_instrument_marketUsed instrumentsDigimart + Ishibashi U-BOX
search_offmall_marketGeneral used goodsOffMall (Hard Off official, 800+ stores)
search_kakaku_pricesNew price comparisonKakaku.com (aggregated, thousands of shops)
search_car_marketUsed carsgoo-net (nationwide, by body type)
search_car_price_statsUsed car price stats (min/max/avg/median JPY)goo-net (by model keyword, e.g. N-BOX, Alphard)
search_rakuten_itemsNew retail products (official API)Rakuten Ichiba 楽天市場 (keyword, price range, sort)
get_rakuten_rankingBest-seller ranking (official API)Rakuten Ichiba 楽天市場 (overall or by genre)
get_maff_market_reportFresh produce wholesale market report (official MAFF open data)Japan central markets (旬別, JPY/100kg, YoY%)
search_maff_price_trendFresh produce wholesale price trend (official MAFF open data)Multi-market, multi-period comparison
get_maff_top_moversFresh produce YoY price movers (official MAFF open data)Japan central markets (supply-shock signal)
get_maff_marketsList available MAFF wholesale marketsno charge

Each tool takes a keyword (e.g. SONY α7, ROLEX, Hermes, Fender) and returns results from the crossed shops. Leaving the keyword empty scans the full category.

Pricing

Pay per event — $0.001 per search + actor start fee. Runs finish in seconds, so a full keyword lookup typically costs well under $0.01.

Connect as an MCP server

Run it from the Apify Store (Run button), then point your MCP client at the endpoint. It stays in standby mode.

MCP client config (Claude Desktop / Cursor / VS Code):

json
{  "mcpServers": {    "japan-market-mcp": {      "url": "https://fruitful-quintessence--japan-market-mcp.apify.actor/mcp",      "headers": {        "Authorization": "Bearer YOUR_APIFY_TOKEN"      }    }  }}
  • URL: <your-username>--japan-market-mcp.apify.actor/mcp
  • Auth: Apify API token in the Authorization: Bearer header (Apify Console → Settings → Integrations)

URL note: use a hyphen in the username (fruitful-quintessence), not an underscore — an underscore hostname will not resolve.

Discovery & registry

  • Agent install guide: see llms-install.md — grounded guidance for AI agents (Cline, Claude Code, Cursor) that set up this server for a user.
  • MCP discovery manifest: .well-known/mcp.json advertises the endpoint, auth, tool list, and pricing in the standard MCP Directory discovery format.
  • Cline MCP Marketplace: submitted for review at cline/mcp-marketplace — once approved it becomes one-click installable from Cline's marketplace.
  • Apify Store: deployed as the public actor fruitful_quintessence/japan-market-mcp (pay-per-event).

Related Apify Actors

This MCP server connects to 86+ Apify Actors in the Kensho ecosystem for real-time data. Key related actors include:

Marketplace & Price Comparison

Retail & E-commerce

Used Goods & Auctions

Local Business & Services

Government & Public Data

Specialized Collections

MCP Connection Examples

6. External run example (fallback)

bash
# If GitHub API returns 403, use curl + git clonecurl -s https://raw.githubusercontent.com/atushi1841/japan-market-mcp/main/README.md > README.patch# edit README.patch as neededgit clone https://github.com/atushi1841/japan-market-mcp.gitcd japan-market-mcpcp ../README.patch README.mdgit add README.mdgit commit -m "update README via external run"git push

1. Standard I/O (stdio) — Claude Desktop, Cursor, etc.

In your claude_desktop_config.json:

json
{  "mcpServers": {    "japan-market-mcp": {      "command": "python",      "args": ["-m", "src.main"]    }  }}

2. HTTP Server Mode

bash
# Install dependenciespip install -r requirements.txt
# Run as HTTP server on port 3000APIFY_TOKEN=your_token python -m src.main --http --port 3000
# Test the endpointcurl http://localhost:3000/mcp/tools | jq .

3. Direct Python Import

python
from src.main import mcp# FastMCP instance can be embedded directly

4. n8n / Apify Workflow (via HTTP)

Use Apify's Webhook node to POST JSON-RPC to POST /mcp endpoint.

5. Docker Deployment

bash
docker build -t japan-market-mcp .docker run -p 3000:3000 -e APIFY_TOKEN=your_token japan-market-mcp
"Compare used prices for Sony a7 III between Kitamura and Fujiya"→ search_camera_market(keyword="SONY α7 III")
"What's the inter-store price gap for a Rolex Submariner?"→ search_watch_market(keyword="ROLEX Submariner")
"What's the market price for a Hermes Birkin 25?"→ search_luxury_market(keyword="Hermes Birkin 25")
"What's a used Fender Stratocaster going for?"→ search_instrument_market(keyword="Fender Stratocaster")
"Show this 旬's wholesale market report for Tokyo (Toyosu) fresh vegetables"→ get_maff_market_report(market="toyosu")
"Which fresh produce items have spiked in price vs last year at Osaka?"→ get_maff_top_movers(market="oosakaho")
"Track the price of daikon (だいこん) across Tokyo and Osaka this month"→ search_maff_price_trend(item="だいこん", markets=["toyosu","oosakaho"])

Use cases

  • Reseller arbitrage — spot the same product priced differently across shops
  • Market research — track used prices for cameras, watches, luxury goods, instruments, cars
  • Export sourcing — goo-net JDM inventory and goo-net price checks for exporters
  • Collector price checks — condition-ranked physical used items from OffMall

Data sources

  • Each actor collects factual data only (product name, price, brand, condition, inventory, URL). No photos or descriptions are harvested.
  • All target sites allow crawling via their robots.txt.
  • MAFF 青果物卸売市場調査（旬別・市場別） is served from the official 農林水産省 open-data CSV — no scraping, direct download. Published under the Government Standard Terms of Use v2.0 (政府標準利用規約2.0): commercial use allowed with attribution. Price is JPY per 100kg. Data updates are published by MAFF each 旬 (10-day period).

Local development

bash
pip install -r requirements.txtAPIFY_TOKEN=apify_api_xxx python -m src.main# Streamable HTTP endpoint at http://localhost:3000/mcp

License

MIT

Install via Smithery

Connect this MCP server to your AI client (Claude Desktop, Cursor, VS Code) in one command:

bash
npx @smithery/cli install atushi1841/japan-market-mcp --client claude

Replace claude with cursor, vscode, or cline for other clients.

Alternatively, install directly from the Smithery registry.

Note: Smithery server listing is pending verification. Once verified, this server will appear in search results with useCount tracking.

Data & Store

Source: README.md at commit 6210982

Tools

0
SourceWeft started this package once in an isolated sandbox, without credentials, to list its tools. That failed: the package type cannot run in the sandbox.

Version history

6
  1. v0.4.5LatestOct 23, 2026
  2. v0.4.4Oct 22, 2026
  3. v0.4.0Oct 22, 2026
  4. v0.1.2Oct 15, 2026
  5. v0.1.1Oct 14, 2026
  6. v0.1.0Oct 13, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.