Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@MCP Utility Tools What is 5 km in miles?"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
A lightweight collection of reusable utility tools for the Model Context Protocol (MCP).
Built using FastMCP and the Python standard library, this package provides common utilities that AI assistants and MCP clients can call without requiring external APIs or additional dependencies.
📏 Unit Conversion
🔐 Secure Password Generator
📅 Date Calculator
🔑 Hash Generator
🔤 Base64 Encode / Decode
🆔 UUID Generator
🔄 Text Case Converter
📊 Text Statistics
Related MCP server: agent-utils-mcp
This project was created as my first published PyPI package while learning the Model Context Protocol (MCP) ecosystem.
The goal was to build a practical MCP server exposing reusable utility tools using only Python's standard library.
pip install mcp-utility-tools
uv add mcp-utility-toolsPython 3.11+
FastMCP
Tool | Description |
convert_units | Convert between common units |
generate_password | Generate secure random passwords |
date_calculator | Date arithmetic |
hash_text | Generate hashes (SHA256, SHA512, MD5, etc.) |
base64_convert | Encode and decode Base64 |
generate_uuid | Generate UUIDs |
convert_case | Convert text between naming styles |
text_stats | Analyze text statistics |
from mcp_utility_tools import main
main()Example MCP tool call:
convert_units(
value=5,
from_unit="km",
to_unit="mi"
)
Output:
5 km = 3.106856 miPython
FastMCP
MCP
Standard Library
More unit categories
JSON outputs
Better error messages
Additional utility tools
Unit tests
Contributions, feature requests and bug reports are welcome.
Feel free to open an issue or submit a pull request.
MIT License
Dharsan
gmail: dharsanbalakrish@gmail.com LinkedIn: https://www.linkedin.com/in/dharsanbalakrish/
Encode text to Base64, or decode a Base64 string back to text.
Inputs: text (required), operation. Returns: result
Convert text between naming styles: snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title Case, or Sentence case.
Inputs: text (required), target_case (required). Returns: result
Convert a numeric value between common units of length, weight, temperature, or volume.
Examples: km<->mi, kg<->lb, celsius<->fahrenheit, liter<->gallon.
Inputs: value (required), to_unit (required), from_unit (required). Returns: result
Calculate the difference between two dates, or add/subtract days from a date.
Inputs: date1 (required), operation (required), days, date2. Returns: result
Generate one or more cryptographically secure random passwords.
Inputs: count, length, use_symbols. Returns: result
Generate one or more random UUIDs (version 4).
Inputs: count, uppercase. Returns: result
Generate a hash digest of the given text.
Inputs: text (required), algorithm. Returns: result
Get statistics about a piece of text: character, word, sentence, and paragraph counts, plus an estimated reading time.
Inputs: text (required). Returns: result
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
Scored across 8 tools
Each tool has a clearly distinct purpose: unit conversion, password generation, date math, hashing, base64, UUIDs, case conversion, and text statistics. No two tools overlap in functionality.
All tool names follow the verb_noun snake_case pattern (convert_units, generate_password, date_calculator, hash_text, etc.). The naming is consistent and predictable.
Eight tools is well-scoped for a general utility server. Each tool serves a distinct common utility need, and the count is within the ideal 3-15 range.
The tool surface covers a broad set of common utilities (conversion, generation, encoding, text analysis). Minor gaps exist (e.g., no random number generator or URL encoder/decoder) but the set is reasonably complete for its stated purpose.
Tiny devtools MCP server: slugs, timestamps, case conversion, hashing, base64, UUIDs.
Developer utilities MCP server: base64, hash, slug, uuid v4, timestamp, urlencode. Free, no key.
Remote MCP for JSON repair, hashing, formatting, IDs, dates, units, and other small tools.
Free hosted dev toolkit: uuid, hash, base64, JWT decode, CSV->JSON, time, JSON tools as MCP