@first-ch/tools-mcp

@first-ch/tools-mcp is an MCP server by GitHub Actions. First CH Tools の計算ロジック（WCAGコントラスト比・文字数/Xウェイト・WebP変換・JSON-LD生成・llms.txt生成・文字コード/改行コード変換・Marp Markdown→スライド レンダリング・テストデータ生成・テキスト/コード差分・Cron式の解説・Base64/Data URI変換・URLパラメータの分解/再構築・HTML特殊文字のエスケープ/エンティティのデコード・JSON⇄YAMLの相互変換・px⇄rem/emの単位換算とCSSの一括変換・カラーコードの相互変換とア. It is listed in Databases.

Category

Databases

Author

GitHub Actions

GitHub stars

Not on GitHub

This week

Tracking since 18 Oct 2026

Language

JavaScript

License

MIT (open source)

Last update

2026-10-21 (3 days ago)

Links

Sourcenpm

• mcp
• model-context-protocol
• webp
• wcag
• contrast
• json-ld
• llms-txt
• character-count
• marp
• slides
• markdown
• testdata
• +221 more

How to install @first-ch/tools-mcp

@first-ch/tools-mcp is published on npm as @first-ch/tools-mcp, and it is listed in the official MCP Registry. These steps assume it runs as a local stdio server, which is the usual setup.

1. Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.
2. Add it to Claude Code from a terminal:

   claude mcp add tools-mcp -- npx -y @first-ch/tools-mcp

3. Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

   {
     "mcpServers": {
       "tools-mcp": {
         "command": "npx",
         "args": [
           "-y",
           "@first-ch/tools-mcp"
         ]
       }
     }
   }

4. Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm @first-ch/tools-mcp and its tools are listed. The install guide covers VS Code and Codex.

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.