Command Palette

Search for a command to run...

UnylyUnyly
Browse all

Server Devutils

FreeMaintained

Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex.

GitHubEmbed

About

Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex.

README

npm version npm downloads CI License: MIT

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.

MCP server devutils demo — JWT decode, UUID generation, and cron explanation in Claude Desktop

Tools

Tool What it does
base64_encode Encode a string to Base64
base64_decode Decode a Base64 string
uuid_generate Generate one or more UUIDs (v4)
ulid_generate Generate a ULID
hash Hash a string (md5, sha1, sha256, sha384, sha512)
hash_all Hash with all algorithms at once
jwt_decode Decode a JWT token (header, payload, expiry)
cron_explain Explain a cron expression in plain English
cron_validate Validate a cron expression
cron_next Show next N run times for a cron expression
timestamp_to_iso Convert Unix timestamp to ISO 8601
iso_to_timestamp Convert ISO 8601 to Unix timestamp
timestamp_now Get current time in multiple formats
json_format Pretty-print a JSON string
json_minify Minify a JSON string
json_validate Validate JSON and report its type
regex_test Test a regex pattern against a string

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

Made by ofershap

LinkedIn GitHub


README built with README Builder

License

MIT © Ofer Shapira

from github.com/ofershap/mcp-server-devutils

Install Server Devutils in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE
unyly install mcp-server-devutils

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add mcp-server-devutils -- npx -y mcp-server-devutils

Step-by-step: how to install Server Devutils

FAQ

Is Server Devutils MCP free?

Yes, Server Devutils MCP is free — one-click install via Unyly at no cost.

Does Server Devutils need an API key?

No, Server Devutils runs without API keys or environment variables.

Is Server Devutils hosted or self-hosted?

A hosted option is available: Unyly runs the server in the cloud, no local setup required.

How do I install Server Devutils in Claude Desktop, Claude Code or Cursor?

Open Server Devutils on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

Changes

Versions and requested access over time.

  • New version published
  • New version published

Related MCPs

Compare Server Devutils with

Not sure what to pick?

Find your stack in 60 seconds

Author?

Embed badge for your README

Browse similar

All development MCPs