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Connect Google Calendar to Hermes

Give Hermes governed access to Google Calendar’s 13 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Hermes setup guide

Set up

Add Google Calendar to Hermes in four steps

Admins approve the server once. Everyone in Hermes then gets it through the same governed connection.

  1. 1

    Approve Google Calendar in Runlayer

    Add Google Calendar from the catalog and choose who can use it and which of its tools are allowed.

  2. 2

    Connect Hermes to Runlayer

    Users add the Runlayer Plugin to Hermes by following Runlayer’s setup guide. Hermes reaches Google Calendar’s 13 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.

    Hermes setup guide
  3. 3

    Sign in to Google Calendar

    Sign in the way Google Calendar requires. Runlayer holds the credentials so they stay out of the client’s configuration.

  4. 4

    Use Google Calendar from Hermes

    Google Calendar’s approved tools appear in Hermes. Every call is checked against policy and recorded.

Tools

13 Google Calendar tools in Hermes

Runlayer policy decides which of these Hermes users can call. 4 read data only and 2 can change or delete data.

  • Create Calendar

    Create a new calendar.

  • Create event

    Create a new event in your Google Calendar with detailed options including attendees, location, reminders, and recurrence rules.

  • Delete Calendar

    Delete a secondary calendar.

  • Delete event

    Delete an event from your calendar.

  • Get event

    Get detailed information about a specific calendar event including title, description, time, location, attendees, and recurrence rules.

  • Get free busy

    Check free/busy information for calendars within a time range.

  • List calendars

    List all calendars accessible to the authenticated user.

  • List events

    List events from your Google Calendar.

See all 13 Google Calendar tools

Control

What Runlayer can see and stop in Hermes

Some controls apply to every client at the gateway. Others depend on what Hermes exposes to Runlayer.

  • Gateway policy (available)

    Every Google Calendar call from Hermes passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Hermes as the client, the tool, and the policy and scanner decisions.

  • Client hooks (available)

    Capture supported prompts, reasoning, local and MCP tool calls, responses, and scanner decisions in real time.

  • Stop a call before it runs (available)

    Runlayer can deny a tool call before Hermes runs it.

  • Block output after it runs (available)

    Runlayer can block a tool’s output in Hermes and show a message in its place.

  • Redact output in place (not available)

    Hermes cannot take masked output, so Runlayer can block a tool’s output but not mask it. The gateway still applies policy to the call.

In Hermes

  • Hermes can replace blocked tool output with a message, but its after-call event is for monitoring only.

Frequently asked questions

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