agentmods.dev

yomitan-mcp-server

yomitan-mcp-server is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from GoRakuDo/yomitan-mcp. Its token cost is not measured, scanned A, original, MPL-2.0.

A local MCP server for Yomitan dictionary lookups. Yomitan is a dictionary tool commonly used for looking up words while reading language-learning material.

In plain words
What is it for?
Use it when an agent needs to look up words through Yomitan's dictionary data.
Why use it?
It lets compatible assistants access dictionary lookups through a locally running service instead of requiring those lookups to be handled manually.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it.

not rated 6repo 6mo ago A scan tokens not measured original MPL-2.0

Good fit Use it when an agent needs to look up words through Yomitan's dictionary data.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/gorakudo/yomitan-mcp/yomitan-mcp-server
View source ↗ GoRakuDo/yomitan-mcp gorakudo.org
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/GoRakuDo/yomitan-mcp

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for yomitan-mcp-server

README.md
[![agentmods](https://agentmods.dev/badge/mcp/gorakudo/yomitan-mcp/yomitan-mcp-server/github.svg)](https://agentmods.dev/mcp/gorakudo/yomitan-mcp/yomitan-mcp-server)
Your own site
<a href="https://agentmods.dev/mcp/gorakudo/yomitan-mcp/yomitan-mcp-server"><img src="https://agentmods.dev/badge/mcp/gorakudo/yomitan-mcp/yomitan-mcp-server/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for yomitan-mcp-server

Your own site · 80×15
<a href="https://agentmods.dev/mcp/gorakudo/yomitan-mcp/yomitan-mcp-server"><img src="https://agentmods.dev/badge/mcp/gorakudo/yomitan-mcp/yomitan-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

yomitan-mcp-server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

listed in the official MCP registry · 9 lines

What it actually says

{ "yomitan-mcp-server": { "command": "npx", "args": [ "-y", "yomitan-mcp-server" ] } }

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 9 lines scan A 87b1e97c211b

Subscribe to this mod's changes

yomitan-mcp-server is an MCP server published in the GitHub repository GoRakuDo/yomitan-mcp (6 stars, last pushed 6mo ago), licensed MPL-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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