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Glama
aberhamm

ical-mcp

by aberhamm
OverviewSchemaRelated ServersScoreDiscussions
Python
Hybrid

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
ICAL_MCP_URLYesCalDAV server URL (e.g. https://caldav.icloud.com)
ICAL_MCP_PASSWORDYesPassword or app-specific password
ICAL_MCP_TIMEZONENoDefault timezone (default: UTC)UTC
ICAL_MCP_USERNAMEYesYour email / account ID
ICAL_MCP_WRITABLE_CALENDARSNoCalendars that allow writes (see Write protection)

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

CapabilityDetails
tools
{
  "listChanged": true
}
logging
{}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
extensions
{
  "io.modelcontextprotocol/ui": {}
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
list_calendarsA

List all available calendars.

Returns calendar names and IDs for use with other tools. Call this first to discover which calendars exist before querying or creating events.

get_eventsA

Get events within a date range.

Returns events sorted by start time. Recurring events are returned as individual expanded occurrences within the requested range.

create_eventA

Create a new calendar event.

Confirm the calendar, date, time, and details with the user before calling. Returns the created event with its ID and ETag for future updates.

update_eventA

Update an existing calendar event.

Only send the fields you want to change — unchanged fields are preserved. Requires the event's ETag for optimistic concurrency; if the event was modified elsewhere, the update will fail with a conflict error.

delete_eventA

Delete a calendar event.

Confirm with the user before deleting. Pass the ETag from get_events to ensure you're deleting the right version.

get_freebusyA

Check free/busy status for a time range.

Returns a list of busy time blocks within the requested range. Useful for finding available slots before scheduling.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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