A Rakuten Ichiba (Japan's largest e-commerce marketplace) MCP server for searching, browsing, and comparing products with enhanced pricing and shipping insights. Requires RAKUTEN_APP_ID and RAKUTEN_ACCESS_KEY for authentication.
Tools:
ichiba_item_search — Search products by keyword with optional filters for price range, genre, and shop. Returns enriched fields:
quantity (parsed from product name, e.g. "24本入り×2ケース" → 48)
unitPrice (price ÷ quantity)
postageLabel (送料無料 / 送料別 / 要確認)
estimatedTotalPrice (itemPrice when free shipping)
shippingVerified (whether shipping cost is confirmed via API)
ichiba_genre_search — Browse the genre/category hierarchy; pass '0' for top-level genres or a specific genre ID to drill into subcategories.
ichiba_tag_search — Look up details for a specific tag ID (facet attributes like size, color), including the tag's group, name, and parent tag.
ichiba_item_ranking — Retrieve bestseller rankings, filterable by genre, time period (realtime/daily/weekly/monthly/yearly), age demographic, and gender. Returns the same enriched pricing/shipping fields as item search.
ichiba_product_search — Cross-seller product search (Item Price Navi) comparing prices for identical products across multiple shops, returning min/max/average prices and number of sellers. Supports filtering by maker/brand code.
Prompt:
compare_ichiba_value — Guides agents through a structured unit-price and shipping-inclusive comparison workflow, including web-searching unconfirmed shipping costs and re-ranking by total cost, ensuring accurate cost-per-unit comparisons.
Provides tools for searching items, genres, tags, rankings, and product comparisons on Rakuten Ichiba, with enhanced fields like quantity, unit price, and shipping cost labels.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@rakuten-pantry-mcp find the cheapest bulk pasta with free shipping and best unit price"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
mrslbt/rakuten-mcp をベースにした楽天市場（Ichiba）向け MCP サーバーです。
upstream（npm の rakuten-mcp）にはない機能を追加しています。
フィールド / 機能 | 説明 |
| 商品名から総個数を解析（例: |
|
|
|
|
| 送料無料時は |
| 送料が API 上で確定しているか |
| 単価比較＋送料ウェブ確認のガイドプロンプト |
改造の詳細は CHANGES.md。upstream へのパッチは patches/ を参照。
Related MCP server: rakuten-mcp
rakuten-pantry-mcp/
├── src/
│ ├── index.ts # エントリポイント
│ ├── server.ts # MCP サーバー組み立て
│ ├── client.ts # 楽天 API クライアント
│ ├── config.ts / errors.ts / i18n.ts / auth.ts
│ ├── tools/
│ │ ├── ichiba.ts # ★ 改造の本体（5ツール）
│ │ ├── index.ts
│ │ ├── types.ts
│ │ └── meta.ts
│ ├── prompts/
│ │ ├── ichiba.ts # ★ compare_ichiba_value
│ │ ├── schema.ts # ★ プロンプト引数の型変換
│ │ └── index.ts
│ ├── transports/ # stdio / HTTP
│ └── resources/
├── test/ # ichiba / prompts / http のテスト
├── patches/ # upstream 向け差分
├── dist/ # ビルド成果物（npm run build）
├── package.json
├── README.md
├── CHANGES.md
├── AGENTS.md
└── LICENSEIchiba ツール 5個のみ（Books / Travel / Recipe / Kobo / GORA は含みません）。resources/ は現時点では未使用（空のレジストリ）です。
git clone https://github.com/yukin_co/rakuten-pantry-mcp.git
cd rakuten-pantry-mcp
npm install
npm run build環境変数 RAKUTEN_APP_ID と RAKUTEN_ACCESS_KEY が必要です（楽天デベロッパーで取得）。
args には clone 先の dist/index.js への絶対パス を指定します。
{
"mcpServers": {
"rakuten-pantry": {
"command": "node",
"args": ["/path/to/rakuten-pantry-mcp/dist/index.js"],
"env": {
"RAKUTEN_APP_ID": "your-app-id",
"RAKUTEN_ACCESS_KEY": "your-access-key"
}
}
}
}{
"mcpServers": {
"rakuten-pantry": {
"command": "npx",
"args": ["-y", "rakuten-pantry-mcp"],
"env": {
"RAKUTEN_APP_ID": "your-app-id",
"RAKUTEN_ACCESS_KEY": "your-access-key"
}
}
}
}npm の
rakuten-mcp（mrslbt/rakuten-mcp）は別パッケージです。上記のrakuten-pantry-mcpを指定してください。
ツール | 内容 |
| キーワード検索（quantity / unitPrice / 送料フラグ付き） |
| ジャンルツリー |
| タグ参照 |
| 売れ筋ランキング |
| 複数店舗横断の価格比較 |
プロンプト | 内容 |
| 単価比較と送料確認の手順をエージェントに渡す |
npm run typecheck
npm test
npm run buildMIT — 元: mrslbt/rakuten-mcp（MIT）
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