Google Calendar MCP — colorId removed from create_event / update_event

Resolved 💬 3 comments Opened Apr 17, 2026 by davidgbenhaim Closed Apr 21, 2026

The Google Workspace (Google Calendar) MCP integration was recently upgraded. The colorId field has been removed from the create_event and update_event tool schemas.

This field is natively supported by the Google Calendar API and was working before the upgrade. Please re-expose it in the tool schema — it's essential for time-blocking workflows.

Steps to reproduce:

  1. Call create_event or update_event with a colorId parameter
  2. The MCP schema rejects the parameter — it's not exposed

Expected: colorId (1-11) supported as in the Google Calendar API
Actual: Field not present in tool schema

Previous tool name: gcal_create_event / gcal_update_event (before upgrade)
Current tool name: create_event / update_event

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