How to connect Google Calendar to ChatGPT

1. 1. Enable Google Calendar in Metorial

   In your Metorial portal, enable the Google Calendar MCP server and sign in with the account that owns the data. Access stays governed by your team policies.

2. 2. Add a custom MCP server

   On ChatGPT web, open Plugins, select +, then Add custom MCP server.

3. 3. Paste your Metorial MCP URL

   Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>), choose OAuth and accept the risk notice.

4. 4. Create and install the plugin

   Select Create as a plugin, install it and sign in to load Google Calendar tools.

• Get Event: Retrieve the full details of a specific event by its ID, including attendees, recurrence, conference data, and all metadata.
• Manage Calendar: Create, update, or delete a secondary calendar.
• Delete Event: Permanently delete an event from a Google Calendar.
• Update Event: Update an existing Google Calendar event.
• Get Colors: Retrieve the available calendar and event color definitions used in Google Calendar.
• Find Free/Busy: Query the free/busy availability for one or more calendars over a given time range.
• List Events: List events from a Google Calendar with flexible filtering options.
• List Calendars: List all calendars on the user's calendar list, including their primary calendar, subscribed calendars, and shared calendars.
• Manage Sharing: Manage access control (sharing permissions) on a calendar.
• Create Event: Create a new event on a Google Calendar.
• Quick Add Event: Create an event using natural language text, just like the "Quick Add" feature in the Google Calendar UI.
• Respond to Event: Accept, decline, or tentatively accept a Google Calendar invitation without replacing the event's attendee list.
• Get Settings: Retrieve one Google Calendar user setting or list the settings explicitly stored for the authenticated user.
• Batch Modify Events: Create, update, or delete multiple Google Calendar events in one tool call.
• List Calendar Sharing: List the sharing rules for a Google Calendar, including each rule's access role and user, group, domain, or public scope.
• And 1 more on the Google Calendar MCP server page.

• Type @ and pick the plugin. The selection applies to that message only, so @mention it again when a follow-up needs fresh Google Calendar data.
• For write actions, ChatGPT may ask you to confirm first, depending on the app permissions and the action.
• Once published for a workspace, ChatGPT keeps a snapshot of the tool list. When your team adds Google Calendar tools in Metorial, an admin refreshes the actions in Workspace settings before they appear.
• You can use several apps in one prompt, for example read Google Calendar data and then create a ticket in another app.

Add custom MCP server is missing

Workspace policy controls it. On Enterprise and Edu, an admin grants the permission to create plugins with MCPs; ask them to enable it for you.

The plugin exists but no tools appear

Creating the plugin is not enough: install it from your plugins, then start a new conversation so ChatGPT loads its tools.

ChatGPT answers without using the tools

Pick the plugin with @ in the composer and name the action you want, for example "use Metorial to look up the latest ticket".

Based on the ChatGPT MCP documentation.