MCP Server DevUtils — 17 Developer Tools for AI Assistants

An MCP server that gives your AI assistant 17 developer utilities — base64, UUID, JWT decode, cron, timestamps, JSON, regex. No API keys, no external services, just npx.

You: "Decode this JWT: eyJhbGci..."
AI:  Header: { alg: "RS256" }  Payload: { sub: "1234", exp: 1700000000 }  Expired: yes

Works with Claude Desktop, Cursor, and VS Code Copilot. Zero auth required.

Tools

Quick Start

With Claude Desktop

Add to your claude_desktop_config.json:

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

With Cursor

Add to your .cursor/mcp.json:

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

With VS Code (Copilot)

Add to your .vscode/mcp.json:

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

Examples

Ask your AI assistant:

• "Decode this JWT token: eyJhbG..."

• "What does the cron expression 0 9 * * 1-5 mean?"

• "Generate 5 UUIDs"

• "Hash this string with SHA-256: hello world"

• "Convert Unix timestamp 1700000000 to a date"

• "Format this JSON: {"a":1,"b":2}"

• "Test the regex \d{3}-\d{4} against '555-1234'"

Development

npm install
npm test
npm run build

Author

README built with README Builder

License

MIT © Ofer Shapira