DevTools

Name: DevTools
Author: kira-autonoma

by kira-autonomaversion 1.0.1i★ –iRuns on your computer

Registry nameio.github.kira-autonoma/devtools

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "devtools": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-devtools-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account kira-autonoma, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32568 servers in this category
Published to the registry more recently than 4% of the other 32568 servers in this category
Basic checks equal to or better than 100% of the other 32568 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is DevTools safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, FlyDocs

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

Install

FlyDocs

by flydocs.ai

Spec-driven development workflow: your agent works issues, sessions and the status lifecycle.

Runs on your computerUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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.

DevTools

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

FlyDocs

README from the maker

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