Google Calendar setup

You're reading the new setupAlready have Google Calendar connected? →

Connecting Google Calendar takes one authorization. Authorize Google Calendar's MCP server and your setup gives you two things.

• Read and write calendar tools work right away. Glean and Glean agents can find, create, update, and respond to meetings, list calendars, and suggest times. Every tool runs as the person asking, using their own Google authorization, so it respects that user's Calendar permissions.
• Permission-aware search is available when you turn on data crawling and indexing. Glean indexes your Google Calendar events so meetings appear in search and power calendar agents. Glean enforces Calendar permissions at query time, and private events surface as free or busy only.

1. Connect and authorizetoday — current step
2. Use read and write toolstoday — current step
3. Indexing runs in the backgroundtoday — happens automatically
4. Permission-aware search switches ontomorrow — happens automatically

Feature availability after setup

Read and write calendar tools work as soon as you authorize the MCP connection. Search switches on once you begin indexing and the first crawl completes.

Capability	When it becomes available	Whose permissions apply
Read and write calendar tools	Immediately after you authorize the MCP connection	Each user's own Google permissions, through their own Google authorization
Permission-aware search	Once you begin indexing and the first crawl completes	Calendar permissions enforced at query time. Private events show as free or busy

Connector setup

Prerequisites

Confirm the following before you begin.

Requirement	Why it is needed
A Glean admin who can add and configure connectors	Adds the Google Calendar connector and authorizes it in the Admin console
A Google Workspace admin	Authorizes the MCP connection and manages the shared Google Drive delegation for indexing
The Google Drive connector, set up and healthy	Google Calendar indexing reuses the Google Drive service account and domain-wide delegation

Step 1. Connect

In the Glean Admin console, go to Connectors and add the Google Calendar connector. This step authorizes Google Calendar's tools.

1. Enter a Name for the connector. This is the name your organization members see.

2. Under Select an authorization method, pick one option.

   • Central (recommended). Use Glean's managed OAuth app, which needs no configuration.
   • Custom. Use your own Google OAuth app. You provide a Client ID and Client secret.

   See Google tools setup for the full instructions.

3. Select Continue. You return to Glean to set up indexing.

Step 2. Set up indexing

To add permission-aware search, set up data crawling and indexing. Google Calendar reuses the Google Drive connector's service account and delegation.

• Confirm the Google Drive connector is set up and healthy.
• Add the Calendar scope (https://www.googleapis.com/auth/calendar.readonly) to the domain-wide delegation client that Google Drive already uses, and enable the Google Calendar API in the same Google Cloud project.
• Confirm the directory admin email from the Google Drive connector is a valid Google Workspace user with Calendar enabled.

Step 3. Review and begin

Review who can use the connector and any data access rules, then finish setup. Select Begin indexing to start the crawl, or defer it and start later from the connector page.

Manage tools

Connecting Google Calendar makes its tools available. You can see all available tools on the Tools tab of your connector and edit permissions through Advanced settings.

Tool settings you can change afterwards

• Which tools are on. Keep read tools enabled and leave write tools off until you are ready for agents to act on calendars. See Enabling or disabling individual tools.
• Where they appear. Across Glean Assistant, Agents, and the Glean MCP server. See Enabling tools for Chat and Agents.
• Who can use them. Scope each tool to specific users or groups. See Tool visibility scoping and role-based access to tools.
• How write tools run. Control whether a tool runs without user confirmation. See Run tools without user confirmation and Allowing in-line execution of write tools.

For the full guide, see Tools overview.

Per-user authorization

Setup authorizes Glean to Google Calendar at the connector level. From there, two identities decide what each person sees.

Capability	Runs as	What it enforces
Indexed search	The shared Google Drive service account, through domain-wide delegation	Calendar permissions enforced at query time. Private events show as free or busy
Read and write tools	Each user's own Google account	That user's own Calendar permissions, checked by Google on every call

Each teammate authorizes their own Google account over OAuth the first time they use a tool. Indexed search needs no action from end users once the crawl completes.

After setup

• Tune what is indexed with inclusion and exclusion rules for calendars.
• Check progress any time from the Google Calendar connector page in the Admin console.

See also

• Choose your Google Calendar setup shows which setup is yours and how tools and indexed search fit into each.
• Google Calendar overview covers capabilities, indexing scope, permissions, and limitations.
• Connect Google Calendar with Glean is the existing connector setup reference.