io.github.ofershap/devutils
Developer utilities MCP: base64, UUID, hash, JWT decode, cron, timestamps.
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About
Developer utilities MCP: base64, UUID, hash, JWT decode, cron, timestamps.
Details
- Kind
- MCP servers
- Topic
- No topic detected
- Publisher
- ofershap
- Origin
- official
- Category
- ferramentas
- Transport
- local
- Version
- 1.0.2
- Stars
- 4
- Forks
- 1
- Last push
- 2026-03-10T09:22:48Z
- Repository state
- ativo
- Language
- TypeScript
- License
- MIT
- Added
- 2026-08-29 04:00:57
- Updated
- 2026-08-29 04:00:57
- Origin id
io.github.ofershap/devutils
README
# MCP Server DevUtils — 17 Developer Tools for AI Assistants
[](https://www.npmjs.com/package/mcp-server-devutils)
[](https://www.npmjs.com/package/mcp-server-devutils)
[](https://github.com/ofershap/mcp-server-devutils/actions/workflows/ci.yml)
[](https://opensource.org/licenses/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.
## 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`:
```json
{
"mcpServers": {
"devutils": {
"command": "npx",
"args": ["-y", "mcp-server-devutils"]
}
}
}
```
### With Cursor
Add to your `.cursor/mcp.json`:
```json
{
"mcpServers": {
"devutils": {
"command": "npx",
"args": ["-y", "mcp-server-devutils"]
}
}
}
```
### With VS Code (Copilot)
Add to your `.vscode/mcp.json`:
```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
```bash
npm install
npm test
npm run build
```
## Author
[](https://gitshow.dev/ofershap)
[](https://linkedin.com/in/ofershap)
[](https://github.com/ofershap)
---
<sub>README built with [README Builder](https://ofershap.github.io/readme-builder/)</sub>
## License
[MIT](LICENSE) © [Ofer Shapira](https://github.com/ofershap)