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io.github.domdomegg/google-cal-mcp

domdomegg Scanned 14d ago

Allow AI systems to list, create, update, and manage Google Calendar events.

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Versions

1.1.2latest
first seen May 19, 2026

Tools 15

events_list
annotations: verified low

List calendar events within a time range. Returns events with their details including attendees and response status.

readOnlyHint true
colors_get
annotations: verified low

Get the color definitions available for calendars and events. Returns color IDs that can be used with calendarlist_update.

readOnlyHint true
freebusy_query
annotations: verified low

Find free and busy times for calendars within a time range. Useful for finding meeting availability.

readOnlyHint true
calendars_list
annotations: verified low

List all calendars the user has access to

readOnlyHint true
event_get
annotations: verified low

Get details of a specific calendar event

readOnlyHint true
calendarlist_insert
annotations: verified low

Add an existing calendar to the user\'s calendar list. Use this to subscribe to shared calendars.

readOnlyHint false idempotentHint true destructiveHint false
calendarlist_delete
annotations: verified low

Remove a calendar from the user\'s calendar list. This unsubscribes from the calendar but does not delete it.

readOnlyHint false idempotentHint true destructiveHint true
event_move
annotations: verified low

Move an event to a different calendar. Changes the event organizer. Only works for default events (not birthday, focusTime, etc.).

readOnlyHint false idempotentHint true destructiveHint false
event_instances
annotations: verified low

Get all instances of a recurring event within a time range.

readOnlyHint true
event_delete
annotations: verified low

Delete a calendar event

readOnlyHint false idempotentHint true destructiveHint true
event_respond
annotations: verified low

RSVP to a calendar event invitation (accept, decline, or tentative)

readOnlyHint false idempotentHint true destructiveHint false
event_create
annotations: verified low

Create a new calendar event. Can include attendees and optionally create a Google Meet link.

readOnlyHint false idempotentHint false destructiveHint false
event_update
annotations: verified low

Update an existing calendar event. Only specified fields will be changed.

readOnlyHint false idempotentHint true destructiveHint true
acl_list
annotations: verified low

List who has access to a calendar and their permission levels.

readOnlyHint true
calendarlist_update
annotations: verified low

Update user-specific settings for a calendar (color, visibility, reminders, custom name).

readOnlyHint false idempotentHint true destructiveHint false

Permissions 2

network medium
Server uses network capabilities via: fetch()
env_vars low
Server uses env_vars capabilities via: process.env

Scan Findings 44

info
Tool 'events_list' annotations are consistent annotation_checker · 80%
info
Tool 'colors_get' annotations are consistent annotation_checker · 80%
info
Tool 'freebusy_query' annotations are consistent annotation_checker · 80%
info
Tool 'calendars_list' annotations are consistent annotation_checker · 80%
info
Tool 'event_get' annotations are consistent annotation_checker · 80%
info
Tool 'calendarlist_insert' annotations are consistent annotation_checker · 80%
info
Tool 'calendarlist_delete' annotations are consistent annotation_checker · 80%
info
Tool 'event_move' annotations are consistent annotation_checker · 80%
info
Tool 'event_instances' annotations are consistent annotation_checker · 80%
info
Tool 'event_delete' annotations are consistent annotation_checker · 80%
info
Tool 'event_respond' annotations are consistent annotation_checker · 80%
info
Tool 'event_create' annotations are consistent annotation_checker · 80%
info
Tool 'event_update' annotations are consistent annotation_checker · 80%
info
Tool 'acl_list' annotations are consistent annotation_checker · 80%
info
Tool 'calendarlist_update' annotations are consistent annotation_checker · 80%
info
Sandbox failed to start for behavioral verification behavioral_verifier · 100%
low
Cross-tool reference in 'colors_get': Usage note: 'can be used with calendarlist_update' cross_tool_detector · 35%
medium
Vulnerable dependency: @modelcontextprotocol/sdk@1.24.0 (GHSA-345p-7cg4-v4c7) dependency_analyzer · 95%
medium
Vulnerable dependency: @modelcontextprotocol/sdk@1.24.0 (GHSA-8r9q-7v3j-jr4g) dependency_analyzer · 95%
medium
Vulnerable dependency: vitest@3.0.0 (GHSA-5xrq-8626-4rwp) dependency_analyzer · 95%
medium
Vulnerable dependency: vitest@3.0.0 (GHSA-9crc-q9x8-hgqq) dependency_analyzer · 95%
info
package.json metadata manifest_parser · 100%
info
Tool: events_list manifest_parser · 85%
info
Tool: colors_get manifest_parser · 85%
info
Tool: freebusy_query manifest_parser · 85%
info
Tool: calendars_list manifest_parser · 85%
info
Tool: event_get manifest_parser · 85%
info
Tool: calendarlist_insert manifest_parser · 85%
info
Tool: calendarlist_delete manifest_parser · 85%
info
Tool: event_move manifest_parser · 85%
info
Tool: event_instances manifest_parser · 85%
info
Tool: event_delete manifest_parser · 85%
info
Tool: event_respond manifest_parser · 85%
info
Tool: event_create manifest_parser · 85%
info
Tool: event_update manifest_parser · 85%
info
Tool: acl_list manifest_parser · 85%
info
Tool: calendarlist_update manifest_parser · 85%
info
Transport: stdio manifest_parser · 90%
info
Required env vars (4) manifest_parser · 80%
info
Sandbox failed to start for output poisoning scan output_poisoning · 100%
medium
Permission: network access detected permission_analyzer · 70%
low
Permission: env_vars access detected permission_analyzer · 90%
info
SBOM generated: 405 components sbom_generator · 100%
medium
No build provenance detected (SLSA L0) slsa_assessor · 90%