devtools-mcp
This server does not currently have a deployable release on Glama. Follow the repository's setup instructions to install and configure it for your MCP client, including any required credentials and local dependencies.
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-serverClaude 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.
Related MCP server: DevToolkit MCP Server
23 Tools Included
Encoding & Decoding
Tool | Description |
| Encode text to Base64 |
| Decode Base64 to text |
| URL-encode a string |
| Decode URL-encoded string |
| HTML-encode special characters |
| Decode HTML entities |
Cryptography & Hashing
Tool | Description |
| Generate hash (MD5, SHA1, SHA256, SHA512) |
| Generate HMAC signature |
| Decode JWT token (header, payload, expiry) |
Generation
Tool | Description |
| Generate UUID v4 (1-100 at once) |
| Random hex, base64, or alphanumeric strings |
| Generate QR code as PNG image |
JSON
Tool | Description |
| Pretty-print or minify JSON |
| Deep-compare two JSON objects |
Date & Time
Tool | Description |
| Convert Unix ↔ ISO dates, relative time |
Text & Regex
Tool | Description |
| Test regex with matches and capture groups |
| Character, word, line, token count |
| Line-by-line text comparison |
Numbers & Units
Tool | Description |
| Convert between binary, octal, decimal, hex |
| Convert between B, KB, MB, GB, TB (SI & IEC) |
| Convert hex ↔ RGB ↔ HSL colors |
Web & System
Tool | Description |
| Look up HTTP status code meaning |
| 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 startSupport 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.
This server cannot be deployed
Maintenance
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