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Google Calendar

List, create, get, and delete events on Google Calendar. Uses the same OAuth2 pattern as the Gmail toolkit.
Requires: npm install googleapis

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Quick Start

import { Agent, openai, GoogleCalendarToolkit } from "@radaros/core";

const calendar = new GoogleCalendarToolkit({
  credentialsPath: "./credentials.json",
  tokenPath: "./token.json",
});

const agent = new Agent({
  name: "scheduler",
  model: openai("gpt-4o"),
  instructions: "Help manage the user's calendar. Schedule and look up events.",
  tools: [...calendar.getTools()],
});

const result = await agent.run("What meetings do I have today?");

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Config

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credentialsPath
string
Path to OAuth2 credentials JSON. Falls back to GOOGLE_CALENDAR_CREDENTIALS_PATH env var.
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tokenPath
string
Path to saved token JSON. Falls back to GOOGLE_CALENDAR_TOKEN_PATH env var.
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authClient
any
Pre-authenticated OAuth2 client (if you handle auth yourself).
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calendarId
string
default:"primary"
Calendar ID to operate on.

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Tools

ToolDescription
calendar_list_eventsList upcoming events. Supports time range filters.
calendar_create_eventCreate a new event with title, time, location, description, and attendees.
calendar_get_eventGet details of a specific event by ID.
calendar_delete_eventDelete an event by ID.

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Environment Variables

export GOOGLE_CALENDAR_CREDENTIALS_PATH="./credentials.json"
export GOOGLE_CALENDAR_TOKEN_PATH="./token.json"
See the Gmail toolkit setup guide for OAuth2 credential instructions — the process is identical.

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Tool Usage Examples

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List Today’s Events

const result = await agent.run("What meetings do I have today?");

// The agent calls calendar_list_events with:
// { timeMin: "2026-02-26T00:00:00Z", timeMax: "2026-02-26T23:59:59Z" }
//
// Response:
// "You have 3 meetings today:
//  - 10:00 AM — Sprint Planning (Conference Room A)
//  - 1:00 PM — 1:1 with Manager (Zoom)
//  - 3:30 PM — Design Review (Conference Room B)"

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Create Event

const result = await agent.run(
  "Schedule a 30-minute meeting with sarah@company.com tomorrow at 2 PM " +
  "titled 'Quick Sync'. Add a Zoom link in the description."
);

// The agent calls calendar_create_event with:
// {
//   summary: "Quick Sync",
//   start: { dateTime: "2026-02-27T14:00:00+05:30" },
//   end: { dateTime: "2026-02-27T14:30:00+05:30" },
//   attendees: [{ email: "sarah@company.com" }],
//   description: "Join via Zoom: https://..."
// }

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Check Availability

const result = await agent.run("Am I free next Monday afternoon?");

// The agent calls calendar_list_events for Monday's time range
// and reports availability gaps