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Timetastic MCP

An unofficial MCP server for Timetastic, exposing the Timetastic API to agentic clients so they can query and manage absence & leave data.

Setup

You need an admin API token, generated at https://app.timetastic.co.uk/api. The server reads it from the TIMETASTIC_API_TOKEN environment variable.

The quickest way to run it is with uv's uvx, which fetches and runs the published package without a manual install:

export TIMETASTIC_API_TOKEN="your-token-here"
uvx timetastic-mcp

Or install it as a tool so the timetastic-mcp command is on your PATH:

uv tool install timetastic-mcp   # or: pipx install timetastic-mcp
IMPORTANT

Only admin users can generate API tokens on Timetastic. The above URL is only accessible to admin users.

Related MCP server: TimePRO MCP Server

Client configuration

Add the server to your MCP client (e.g. Claude Desktop / Claude Code):

{
  "mcpServers": {
    "timetastic": {
      "command": "uvx",
      "args": ["timetastic-mcp"],
      "env": { "TIMETASTIC_API_TOKEN": "your-token-here" }
    }
  }
}

Pin a version with "args": ["timetastic-mcp@0.1.0"]. If you installed the command on your PATH instead, use "command": "timetastic-mcp" with "args": []. In Claude Code you can also add it from the CLI:

claude mcp add timetastic --env TIMETASTIC_API_TOKEN=your-token -- uvx timetastic-mcp

Tools

Tools are grouped by resource and named <verb>_<resource>.

Group

Tools

Absences

list_absences

Holidays (leave bookings)

list_holidays, get_holiday, book_holiday, action_holiday

Users

list_users, get_user, get_user_contact, add_user, edit_user, archive_user, restore_user, assign_public_holidays_to_user

Departments

list_departments, get_department, add_department, edit_department, delete_department

Leave types

list_leave_types, get_leave_type, list_leave_type_colors, list_leave_type_icons, create_leave_type, update_leave_type, delete_leave_type

Allowances

list_all_allowances, get_user_allowance, update_user_allowance, update_user_carry_forward, add_user_toil, update_user_toil, delete_user_toil

Locked dates

list_locked_dates, add_locked_date, delete_locked_date

Public holidays

list_public_holidays, get_public_holiday, list_public_holiday_countries

Webhooks

list_webhook_events

Note: Timetastic calls all leave bookings "holidays" for historical reasons — the Holidays tools cover any kind of absence, not just annual leave.

Layout

The package lives under src/timetastic_mcp/:

  • timetastic.py — async HTTP client (auth, base URL, rate-limit retries, error handling).

  • server.py — the shared FastMCP instance and get_client(), the lazily-created API client the tools call.

  • tools/ — one module per resource area, each registering its tools on the shared server: absences, holidays, users, departments, leave_types, allowances, locked_dates, public_holidays, webhooks.

  • main.py — entry point (the timetastic-mcp console script); imports tools to register everything, then runs the server.

Development

Requires Python 3.13+ and uv.

uv sync           # create the venv and install the package + dev deps
uv run pytest     # run the test suite
uv run timetastic-mcp   # run the server from your checkout

Notes

  • The API is rate limited to 5 requests/second per token (1/second for list_absences); the client retries once on a 429.

  • Write and admin operations require appropriate permissions on the token's user account.

Install Server
A
license - permissive license
A
quality
C
maintenance

Maintenance

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