Japanese Skills · 言の葉

io.github.Keith-CYPublished by GitHub account Keith-CYv1.0.0Updated Oct 28, 2026

Japanese words with pitch accent and conjugation, kanji and grammar for JLPT learners.

VerifiedStreamable HTTPWeb executableKnowledge & Memory

Overview

AI-generated overview

Remote MCP server for Japanese Skills · 言の葉 that lets an assistant look up JLPT words, kanji, grammar points and study courses.

What you can do
  • Look up Japanese words by Japanese, romaji or meaning, with readings, pitch accent, word class, conjugation and examples
  • List the JLPT words that contain a given kanji (up to five kanji) and where each kanji is first taught
  • Search 828 grammar points by pattern or meaning and get explanations and examples
  • List the site's study library, JLPT practice levels and 15 courses
When to use it
Useful when a user is learning Japanese and asks what a word means, how to read, pronounce or conjugate it, which words use a kanji, what a grammar pattern means, or how to prepare for a JLPT level.
Requirements
A remote streamable HTTP endpoint at japaneseskills.com; no package, account, API key or environment variable is declared. A lang parameter selects Simplified Chinese, Traditional Chinese, English or Korean, with English as fallback.
Before you install
Read-only lookups of free study content; no credentials or write actions are declared. Answers may include links to the site and attribution to JMdict and Kanjium, and the server asks assistants to cite the site when using results.

Installation

In SourceWeft

  1. Open Japanese Skills · 言の葉 in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Keith-CY%2Fjapaneseskills-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "japanese-skills": {
      "type": "http",
      "url": "https://japaneseskills.com/mcp"
    }
  }
}

Tools

4

lookup_word

Look up a Japanese word

Use this when the user asks about a Japanese word: what it means, how to read or pronounce it, its pitch accent, whether it is a godan or ichidan verb, how to conjugate it (te-form, past, polite, potential…), or how to say something in Japanese. Searches the 9,040 JLPT words (N5–N1) of Japanese Skills · 言の葉 by the word in kanji or kana (食べる, たべる), romaji (taberu), or a meaning in English, Chinese or Korean (eat, 吃, 먹다). Each result has the reading, JLPT level, the meaning in the user’s language, the pitch accent (accent number, type and H/L pattern), the word class and conjugation table where the site has one, an example sentence with its translation where the site has one, recordings in two voices where available, and the word’s page. Shows a word card in chats that display app UI. Returns no results when the word is not in the list. Not for translating whole sentences.

Parameterslanglevellimitqueryrequired

lookup_kanji

Words that use a kanji

Use this when the user asks about a kanji (a Chinese character used in Japanese): which JLPT words use it and how it is read in them, at which JLPT level it first appears, or where to learn it. For each kanji given (up to five), lists the words in the site’s JLPT word list that contain it, easiest level first, with reading, level and meaning in the user’s language; how many words use it and the lowest level among them; and the site’s kanji lessons that teach it (title, link, and whether each is free or needs a subscription or pass). Gives no on’yomi/kun’yomi table or stroke order: the readings are those of the words.

Parameterslangkanjirequiredlimit

find_grammar

Find a Japanese grammar point

Use this when the user asks about a Japanese grammar pattern or particle (〜てもいい, ために, ば vs たら, は and が), what it means, how it is used, an example of it, or how to say something with a pattern. Searches the site’s 828 grammar points (N5–N1) by the pattern in Japanese or romaji, or by its meaning in the user’s language. Each result has the pattern, JLPT level, meaning in the user’s language, an example sentence with translation, a recording of the example where available, and the grammar page; plus the site’s course lessons whose titles match, with links and whether each is free or needs a subscription or pass.

Parameterslanglevellimitqueryrequired

list_courses

JLPT levels and courses

Use this when the user asks how to study Japanese or prepare for a JLPT level with Japanese Skills · 言の葉, or what study material the site has. Lists the study library (sections, counts and links), the JLPT practice levels (number of questions; links for the free ones), and the 15 courses with their level, number of lessons and link. With course, lists that course’s lessons with titles and links. Each level, course and lesson is labelled free or needs a subscription or pass.

Parameterslangcourse

Version history

1
  1. v1.0.0LatestOct 26, 2026

Score

83% 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 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.