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io.github.ofershap/devutils

Official registry Other

Developer utilities MCP: base64, UUID, hash, JWT decode, cron, timestamps.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package mcp-server-devutils
Claude Code 
claude mcp add devutils -- npx -y mcp-server-devutils@1.0.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "devutils": {
            "command": "npx",
            "args": [
                "-y",
                "mcp-server-devutils@1.0.2"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. MCP Server DevUtils — 17 Developer Tools for AI Assistants
  2. Tools
  3. Quick Start
  4. Examples
  5. Development
  6. Author
  7. License

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

ToolWhat it does
base64_encodeEncode a string to Base64
base64_decodeDecode a Base64 string
uuid_generateGenerate one or more UUIDs (v4)
ulid_generateGenerate a ULID
hashHash a string (md5, sha1, sha256, sha384, sha512)
hash_allHash with all algorithms at once
jwt_decodeDecode a JWT token (header, payload, expiry)
cron_explainExplain a cron expression in plain English
cron_validateValidate a cron expression
cron_nextShow next N run times for a cron expression
timestamp_to_isoConvert Unix timestamp to ISO 8601
iso_to_timestampConvert ISO 8601 to Unix timestamp
timestamp_nowGet current time in multiple formats
json_formatPretty-print a JSON string
json_minifyMinify a JSON string
json_validateValidate JSON and report its type
regex_testTest 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

README built with README Builder

License

MIT © Ofer Shapira

Frequently asked questions

What is io.github.ofershap/devutils?

Developer utilities MCP: base64, UUID, hash, JWT decode, cron, timestamps.

How do I install io.github.ofershap/devutils?

It runs on your machine. In Claude Code: claude mcp add devutils -- npx -y mcp-server-devutils@1.0.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.ofershap/devutils need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.ofershap/devutils open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.ofershap/devutils?

It is published by ofershap. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.