Rakuten Mcp

io.github.mrslbtPublished by GitHub account mrslbtv1.3.0Updated Oct 25, 2026

Rakuten Web Service for AI: Ichiba, Books, Travel, Recipe, Kobo, GORA — bilingual, read-only.

VerifiedSTDIODesktop onlyLocation & LifestyleBusiness & Commerce

Overview

AI-generated overview

Unofficial MCP server exposing 27 read-only Rakuten Web Service tools for shopping, books, travel, recipes, Kobo eBooks and golf courses.

What you can do
Search Rakuten Ichiba items, browse genre trees, view bestseller rankings and compare prices across sellers for one product (Item Price Navi).
When to use it
Useful when you want an assistant to look up Japanese marketplace products, books, CDs, DVDs and games, hotel availability, recipes, Kobo eBooks or golf plans through Rakuten's official APIs, with bilingual tool descriptions.
Requirements
Runs locally via npm (global install or npx). Needs a Rakuten Web Service application: RAKUTEN_APP_ID and RAKUTEN_ACCESS_KEY environment variables. Optional RAKUTEN_AFFILIATE_ID and RAKUTEN_MAX_RETRIES. Network access to the Rakuten API; an IP allow list may need the caller's egress IP.
Before you install
Requires Rakuten API credentials (RAKUTEN_APP_ID, RAKUTEN_ACCESS_KEY) stored in client config. Setting RAKUTEN_AFFILIATE_ID appends your affiliate ID to every returned item URL. All tools are read-only GETs, but results are promotional listings, so verify prices and availability before acting. Rakuten terms and rate limits apply; the project is unofficial.

Installation

In SourceWeft

  1. Open Rakuten 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

rakuten-mcp

[npm version] [npm downloads] [rakuten-mcp MCP server] [MCP Badge] [License: MIT]

A Model Context Protocol server for the Rakuten Web Service API. 27 read-only tools across six Rakuten product families: Ichiba (marketplace), Books, Travel, Recipe, Kobo, and GORA (golf).

Every tool description ships in English and Japanese. Every endpoint was re-verified against the live Rakuten API and its documentation on 2026-10-04.

Install

bash
npm install -g rakuten-mcp

Or npx rakuten-mcp on demand.

Configuration

  1. Register at Rakuten Web Service.
  2. Create an application. You get a UUID Application ID and a pk_-prefixed Access Key.
  3. Optional: register an Affiliate ID to monetize product links. Item URLs in tool responses will carry it.
VariableRequiredDescription
RAKUTEN_APP_IDyesApplication ID (UUID format on the new platform)
RAKUTEN_ACCESS_KEYyesAccess Key (starts with pk_)
RAKUTEN_AFFILIATE_IDnoAffiliate ID appended to every item URL
RAKUTEN_MAX_RETRIESnoRetries on 429 / 5xx. Default 3.

IP allow list. A Rakuten app can restrict which IP addresses may call it. If your IP changes (new network, router restart), every tool fails with CLIENT_IP_NOT_ALLOWED; the server reports this as an IP problem, not a key problem. Fix it under Edit for the app at webservice.rakuten.co.jp/app/list. Servers and CI runners need their egress IP on the list too.

Claude Desktop

Edit claude_desktop_config.json:

json
{  "mcpServers": {    "rakuten": {      "command": "npx",      "args": ["-y", "rakuten-mcp"],      "env": {        "RAKUTEN_APP_ID": "your-app-id",        "RAKUTEN_ACCESS_KEY": "your-access-key"      }    }  }}

Claude Code

bash
claude mcp add rakuten -e RAKUTEN_APP_ID=... -e RAKUTEN_ACCESS_KEY=... -- npx -y rakuten-mcp

Cursor / Cline / Continue

Same JSON shape as Claude Desktop, under each client's MCP config path.

Tools

Ichiba (4)

ToolWhat it does
ichiba_item_searchKeyword search on Rakuten Ichiba with price filters, sort, genre/shop restrictions.
ichiba_genre_searchBrowse the genre tree. Returns current, ancestors, siblings, and children.
ichiba_item_rankingRealtime bestseller ranking: overall, by genre, or by age / gender (genre and demographics cannot be combined, per Rakuten).
ichiba_product_searchItem Price Navi: same product across multiple sellers with min/max/avg price.

ichiba_tag_search was removed in 1.3.0: Rakuten retired the Tag Search endpoint.

Books (9)

Only books_total_search takes free text. The per-category tools search by title / author / artist / JAN / ISBN / genre, because that is all Rakuten's endpoints accept.

ToolWhat it does
books_total_searchCross-category search across all of Rakuten Books.
books_book_searchPrinted books by title, author, ISBN, publisher.
books_cd_searchMusic CDs by title, artist, label, JAN.
books_dvd_searchDVDs / Blu-ray.
books_foreign_book_searchNon-Japanese books. Returns japaneseTitle when a translation exists.
books_magazine_searchMagazines by title, publisher, JAN.
books_game_searchVideo games by title, hardware platform, JAN.
books_software_searchComputer software by title, OS, JAN.
books_genre_searchBrowse the Books genre tree (000 = top).

Travel (7)

ToolWhat it does
travel_simple_hotel_searchHotels by area code or lat/lon.
travel_vacant_hotel_searchHotels with rooms available on specific check-in / check-out dates. Returns plans with one-night pricing and chargeBasis (per_person or per_room).
travel_hotel_detail_searchFull details for one hotel by hotelNo.
travel_get_area_classThe area-code hierarchy: 日本 → 47 prefectures → cities → districts.
travel_keyword_hotel_searchFree-text hotel search by name / landmark / area.
travel_get_hotel_chain_listAll 307 hotel chains registered on Rakuten Travel.
travel_hotel_rankingTop hotels by ranking genre (all / onsen / ryokan / city / resort / business / pension / publichouse).

Recipe (2)

ToolWhat it does
recipe_category_listThe full Rakuten Recipe category tree (43 large → ~540 medium → ~1500 small). Pass level to fetch one tier.
recipe_category_rankingTop recipes in a category with title, ingredient list, prep time, cost estimate, image, and author.

Kobo (2)

ToolWhat it does
kobo_ebook_searchSearch Rakuten Kobo's eBook catalogue. Returns title, series, author, publisher, language code, price, and sale URL.
kobo_genre_searchBrowse the Kobo genre tree. Top-level is 101 (電子書籍).

GORA (3)

ToolWhat it does
gora_golf_course_searchGolf courses by area code, keyword, or coordinates.
gora_golf_course_detailFull course profile: designer, hole/par, course distance, green type, dress code, facilities, base prices.
gora_plan_searchReservation plans on a specific play date. Returns per-plan prices, cart/caddie/lunch inclusions, player-count constraints.

Example queries

楽天で1万円以下のワイヤレスイヤホンを探して。レビュー4以上。村上春樹の楽天Kobo電子書籍を新着順で。東京駅近くのホテル、7月1〜2日、2名で1泊1万5千円以下の空室。今週末東京近郊のゴルフ場で安いプランは？楽天レシピで人気の鶏胸肉料理を5件、材料と所要時間込みで。JANコード 4988601009447 のCDの取扱店舗。

Architecture

Modular: one file per API family under src/tools/. Stdio and HTTP transports both supported. Typed error tree with 9 classes covering Config / Auth / IpNotAllowed / RateLimit / Server / NotFound / BadRequest / MalformedResponse / Unknown. Retry-with-backoff on 429 and 5xx, parses Retry-After as both seconds and HTTP-date. See AGENTS.md for the architecture brief, conventions, and how to add a new tool.

Safety

All 27 tools are read-only HTTP GETs against the Rakuten Web Service API. No tool creates, modifies, or deletes anything. Rakuten's terms of service and rate limits apply. Returned items are promotional listings — verify prices and availability on Rakuten before acting on them.

Disclaimer

Unofficial. Not affiliated with, endorsed by, or sponsored by Rakuten Group, Inc. Rakuten, Rakuten Ichiba, Rakuten Books, Rakuten Travel, Rakuten Recipe, Rakuten Kobo, and Rakuten GORA are trademarks of Rakuten Group, Inc. Use at your own risk.

License

MIT

Source: README.md at commit 412410a

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

2
  1. v1.3.0LatestOct 4, 2026
  2. v1.2.2Sep 16, 2026

Score

50% 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