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mcp-ical

mcp-ical

by jeffereychown-Max
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JavaScript
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mcp-ical

5 ICS / iCalendar tools for Claude. Generate, parse, and one-click-add events to Google/Outlook. Free, MIT.

Pure-logic calendar utilities. No API keys, no accounts, no SaaS coupling. Generates standards-compliant RFC 5545 ICS files.

Install

{
  "mcpServers": {
    "ical": {
      "command": "npx",
      "args": ["-y", "@dpm-tools/mcp-ical"]
    }
  }
}

Requires Node.js 22.18+.

Related MCP server: garmin-claude-mcp

Tools (5)

  • create_event — Generate ICS for a single event (title, start, end, location, description, organizer, attendees, all-day).

  • create_calendar — Build a multi-event ICS file.

  • parse_ics — Parse existing ICS content into event objects.

  • google_calendar_url — One-click "Add to Google Calendar" URL (no auth).

  • outlook_calendar_url — One-click "Add to Outlook Web Calendar" URL.

Example prompts

  • "Make an ICS file for a meeting tomorrow 2pm-3pm titled 'Sprint planning' at Zoom URL ..."

  • "Build a calendar from these 5 events..."

  • "Parse this ICS file and tell me when the next event is."

  • "Give me a Google Calendar 'Add' link for the team offsite on 2026-07-15."

See examples/prompts.md for more.

Why this exists

Existing calendar MCPs assume a SaaS backend (Google Calendar OAuth, Microsoft Graph). For LLMs that just need to emit a standards-compliant ICS file or build an add-to-calendar link, those are overkill.

mcp-ical is the pure-logic version:

  • Zero dependencies beyond @modelcontextprotocol/sdk

  • Zero API keys

  • Zero accounts

  • RFC 5545 line folding, escape sequences, attendee/organizer support

Perfect for "tell me about an event then make an ICS attachment" workflows.

Sister servers from dpm

  • mcp-devkit, mcp-public-data, mcp-diff, mcp-archive, mcp-citations — all free, all MIT.

License

MIT © dpm (digital product mill)

Available Tools

5 tools
create_calendarB

Build a multi-event ICS calendar file from an array of events.

Inputs: events (required), calendar_name.

create_eventC

Generate an RFC 5545 ICS file for a single calendar event.

Inputs: title (required), start (required), end (required), location, +5 more.

google_calendar_urlA

Build a one-click 'Add to Google Calendar' URL for an event (no auth needed).

Inputs: title (required), start (required), end (required), location, +1 more.

outlook_calendar_urlC

Build a one-click 'Add to Outlook Web Calendar' URL.

Inputs: title (required), start (required), end (required), location, +1 more.

parse_icsB

Parse an ICS file content and return an array of event objects.

Inputs: ics (required).

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    Deploy Server
    One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

    TDQS

    A3.6/5.0

    Scored across 5 tools

    Disambiguation5/5

    Each tool targets a distinct function: multi-event calendar creation, single event creation, Google Calendar URL, Outlook URL, and ICS parsing. No overlap.

    Naming Consistency5/5

    All tool names use consistent snake_case with a clear verb_noun pattern (create_calendar, create_event, google_calendar_url, outlook_calendar_url, parse_ics).

    Tool Count5/5

    5 tools is well-scoped for a calendar utility server covering creation, URL generation, and parsing. Not excessive or sparse.

    Completeness5/5

    The set covers all common needs: single/multi-event creation, popular calendar URL generation, and ICS parsing. No obvious gaps for the stated purpose.

    Maintenance

    ActivityInactive
    ResponsivenessOutdated data

    Resources

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