EmpLeaveMgmt-Claude-MCP-Server

prphub/EmpLeaveMgmt-Claude-MCP-Server

3.2

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A Claude-compatible MCP Server for managing employee leave data via natural language.

Tools

  1. get_leave_balance

    Check remaining leave days

  2. get_leave_history

    View historical leave dates

  3. apply_leave

    Apply for one or more leave dates

🏗️ Employee Leave Management - MCP Server

A Claude-compatible MCP Server for managing employee leave data via natural language.

Built with:

  • ✅ MCP (Model Context Protocol)
  • ✅ Python + Typer
  • ✅ CSV-based persistence (one source of truth)
  • ✅ Claude-compatible tool definitions

📦 Features

ToolDescription
get_leave_balance(employee_id)Check remaining leave days
get_leave_history(employee_id)View historical leave dates
apply_leave(employee_id, leave_dates)Apply for one or more leave dates
ResourceDescription
greeting://{name}Friendly onboarding message

📁 Folder Structure

EmpLeaveMgmt-Claude-MCP-Server/
├── data/
│   └── employee_leaves.csv      # Single CSV file for persistence
├── main.py                      # MCP tool definitions
├── .venv/                       # Virtual environment
├── pyproject.toml               # Project metadata (via `uv`)
├── uv.lock                      # Dependency lock file
└── README.md                    # You are here!

⚙️ Pre-requisites

  • ✅ Python 3.10+
  • ✅ uv (pip install uv)
  • ✅ Claude Desktop App with Developer mode enabled

🚀 Setup

1. Clone the repo and navigate into it:
git clone https://github.com/prphub/EmpLeaveMgmt-Claude-MCP-Server.git
cd EmpLeaveMgmt-Claude-MCP-Server
2. Create a virtual environment and activate it:
python -m venv .venv
.venv\Scripts\activate   # Windows
# or
source .venv/bin/activate  # Linux/macOS
3. Install dependencies:
pip install uv mcp typer
uv add "mcp[cli]"

📄 CSV Format

Your employee_leaves.csv file should look like this:

employee_id,balance,history
E001,18,2024-12-25;2025-01-01
E002,20,
E003,15,2025-03-15;2025-03-16
  • employee_id: Unique ID
  • balance: Integer (leave days remaining)
  • history: Semicolon-separated list of dates

🧠 Running with Claude (MCP Install)

Make sure .venv is activated, then run:

uv run mcp install main.py

Once tools are installed, Claude can invoke them using natural language, for example:

🗣️ "How many leave days does E002 have left?" 🗣️ "Apply for leave on 2025-07-01 and 2025-07-02 for E003" 🗣️ "Show the leave history of E001"

🧪 Local Development (Optional)

To test locally with a REST UI:

uv run mcp dev main.py

Then visit: http://localhost:8000/docs

🛠️ Notes

  • Leave data is persisted to employee_leaves.csv
  • Multiple leave dates must be passed as a list of ISO strings (e.g., ["2025-08-01", "2025-08-02"])
  • The CSV is reloaded each time a tool is called (ensures freshness)
  • Claude always sees up-to-date employee state