iCal MCP Server

iCal MCP server enabling AI agents to interact with iCal/calendar data — reading calendar events, creating new events, managing recurring meetings, querying free/busy time, and integrating iCalendar scheduling into agent-driven productivity and scheduling workflows on macOS and other platforms supporting iCal.

Evaluated Mar 06, 2026 (0d ago) vcurrent

Homepage ↗ Repo ↗ Productivity ical calendar mcp-server ics scheduling macos

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

Local calendar data. macOS permissions gate access. No external data exposure. Personal schedule privacy. Community MCP.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

A macOS user needs AI agent access to their iCal/Apple Calendar data for scheduling assistance and calendar management.

Avoid When

You primarily use Google Calendar or Outlook — use dedicated MCPs for those services instead.

Use Cases

• Reading upcoming calendar events from scheduling agents
• Creating new calendar events from meeting scheduling agents
• Querying free/busy time for scheduling from coordination agents
• Managing recurring meetings and reminders from productivity agents
• Checking availability for meeting planning from assistant agents
• Integrating calendar context into AI-powered productivity workflows

Not For

• Google Calendar (use dedicated Google Calendar MCP for that)
• Teams using non-iCal calendar systems without iCal sync
• Cross-platform calendar management without iCal format support

Interface

REST API

GraphQL

gRPC

MCP Server

Yes ↗

SDK

Webhooks

Authentication

Methods: none

OAuth: No Scopes: No

No authentication — local MCP accessing iCal data via system calendar APIs or ICS files. macOS calendar permissions required.

Pricing

Model: free

Free tier: Yes

Requires CC: No

Free open source MCP. iCal is standard macOS calendar format.

Agent Metadata

Pagination

none

Idempotent

Partial

Retry Guidance

Not documented

Known Gotchas

⚠ macOS calendar permissions required — user must grant access in System Preferences
⚠ Community MCP from individual developer — limited ongoing maintenance
⚠ iCal data format can be complex (timezones, recurrence rules) — test edge cases
⚠ Recurring event handling may have limitations
⚠ Calendar modifications are immediate — no dry-run mode
⚠ Multiple calendar support (work, personal) requires configuration

Alternatives

microsoft-todo-mcp-server

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for iCal MCP Server.

$99

API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.