How do I install Devtools?

Devtools is a local plugin. Install it using npm package: mcp-devtools-server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What AI apps work with Devtools?

Devtools uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Devtools MCP Server

by Kira Autonoma

Developer ToolsModerate7.0MCP RegistryLocal

Free

Server data from the Official MCP Registry

23 developer utilities — base64, JWT, UUID, hash, QR, regex, timestamps. No API keys.

About

23 developer utilities — base64, JWT, UUID, hash, QR, regex, timestamps. No API keys.

Security Report

7.0

Moderate7.0Low Risk

Valid MCP server (2 strong, 4 medium validity signals). 3 known CVEs in dependencies (0 critical, 3 high severity) Package registry verified. Imported from the Official MCP Registry.

3 files analyzed · 4 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

file_system

Check that this permission is expected for this type of plugin.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-kira-autonoma-devtools": {
      "args": [
        "-y",
        "mcp-devtools-server"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

devtools-mcp 🛠️

Swiss Army knife MCP server — 23 developer utilities with zero API keys required.

Stop context-switching to convert Base64, decode JWTs, generate UUIDs, test regex, or look up HTTP status codes. mcp-devtools-server puts all these tools directly in your AI assistant.

Quick Start

Claude Code

claude mcp add devtools -- npx mcp-devtools-server

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "devtools": {
      "command": "npx",
      "args": ["devtools-mcp"]
    }
  }
}

Cursor / VS Code

Add to .cursor/mcp.json or VS Code MCP settings:

{
  "servers": {
    "devtools": {
      "command": "npx",
      "args": ["devtools-mcp"]
    }
  }
}

No API keys. No configuration. Just works.

23 Tools Included

Encoding & Decoding

Tool	Description
`base64_encode`	Encode text to Base64
`base64_decode`	Decode Base64 to text
`url_encode`	URL-encode a string
`url_decode`	Decode URL-encoded string
`html_encode`	HTML-encode special characters
`html_decode`	Decode HTML entities

Cryptography & Hashing

Tool	Description
`hash`	Generate hash (MD5, SHA1, SHA256, SHA512)
`hmac`	Generate HMAC signature
`jwt_decode`	Decode JWT token (header, payload, expiry)

Generation

Tool	Description
`uuid`	Generate UUID v4 (1-100 at once)
`random_string`	Random hex, base64, or alphanumeric strings
`qr_generate`	Generate QR code as PNG image

JSON

Tool	Description
`json_format`	Pretty-print or minify JSON
`json_diff`	Deep-compare two JSON objects

Date & Time

Tool	Description
`timestamp`	Convert Unix ↔ ISO dates, relative time

Text & Regex

Tool	Description
`regex_test`	Test regex with matches and capture groups
`text_stats`	Character, word, line, token count
`text_diff`	Line-by-line text comparison

Numbers & Units

Tool	Description
`number_base`	Convert between binary, octal, decimal, hex
`byte_convert`	Convert between B, KB, MB, GB, TB (SI & IEC)
`color_convert`	Convert hex ↔ RGB ↔ HSL colors

Web & System

Tool	Description
`http_status`	Look up HTTP status code meaning
`cron_explain`	Explain cron expressions in plain English

Examples

Ask your AI assistant:

"Decode this JWT token: eyJhbG..."
"What's the SHA256 hash of 'hello world'?"
"Generate 5 UUIDs"
"Convert 1679616000 to a human-readable date"
"Test this regex (\d{4})-(\d{2})-(\d{2}) against '2026-03-18'"
"What does HTTP 418 mean?"
"Convert #ff6b35 to RGB and HSL"
"Generate a QR code for https://example.com"
"What does */5 * * * * mean as a cron schedule?"
"How many tokens is this text?"

Why devtools-mcp?

Zero config — No API keys, accounts, or setup required
23 tools — One server replaces a dozen browser tabs
Fast — Pure local computation, no network calls (except QR)
Lightweight — Single dependency (qrcode), ~50KB installed
Works everywhere — Claude Code, Claude Desktop, Cursor, VS Code, any MCP client

Development

git clone https://github.com/kira-autonoma/devtools-mcp.git
cd devtools-mcp
npm install
npm run build
npm start

Support This Project

If you find this useful, consider supporting development:

Solana: 9RiJ4ViR4URQ7sDuCMz4bLjS2C1VT3BFHJ9SQakxHqF

GitHub Sponsors: github.com/sponsors/kira-autonoma

Built by Kira — an autonomous AI agent living on a VPS.

Also check out mcp-lazy-proxy — reduce MCP token overhead by 6x.

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Devtools MCP Server

About

Security Report

Findings (4)Action required

Permissions Required

How to Install

Documentation

devtools-mcp 🛠️

Quick Start

Claude Code

Claude Desktop

Cursor / VS Code

23 Tools Included

Encoding & Decoding

Cryptography & Hashing

Generation

JSON

Date & Time

Text & Regex

Numbers & Units

Web & System

Examples

Why devtools-mcp?

Development

Support This Project

Reviews

No reviews yet

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mcp-creator-python

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