The best way for Google Calendar API integration

The Nylas Calendar API power the world’s leading software applications with full features and sync from Google Calendar and every other calendar provider.

Calendar Integration
Background Image
import Nylas from 'nylas';
clientId: CLIENT_ID,
clientSecret: CLIENT_SECRET,
var nylas =
.then(count => {
`You have ${count} events.`

public class Calendar { 
  public static void main (String[] args) throws Exception {
    NylasAccount account = new NylasClient().account(ACCESS_TOKEN);
    List events =
      new EventQuery().title("Birthday Party!")); Event event ) -> {
      System.out.println( event.getLocation() ); 
from nylas import APIClient
nylas = APIClient(
events =
for event in events:
require 'nylas'
nylas =
    app_id: CLIENT_ID,
    app_secret: CLIENT_SECRET,
    access_token: ACCESS_TOKEN
events =
events.each do |events|
    puts events.title

Simplify the Google Calendar API integration process

The Nylas Calendar API provides an easier way to integrate with all major calendar providers: Google Calendar, Microsoft Exchange Calendar, Outlook Calendar, Yahoo! Calendar, and more.
Nylas handles the complexity of building recurring events, cancellations, time zones, scheduling UI, and more, so your team can focus on building the features that are core to your business.

Save months integrating with the Nylas API for Google Calendar

When integrating users’ Google Calendars into your app, there are a host of challenges the Nylas Calendar API solves for you, including:

Application integration

Full search functionality

Nylas provides search functionality that allows you to run full-text search proxied to the users’ Gmail accounts. Results are matched with objects that have been synced and then returned.


Webhooks allow you to receive notifications when certain events occur. They are easy to integrate with your app and scale seamlessly with your growth.

Infrastructure and physical security

The reliability of the Nylas communication platform provides an integration that guarantees 99.9% uptime.

Build for free

Unlock your potential with Nylas and start building for free today. Experience the power of our robust APIs to streamline your development process and maintenance with integrations across providers.

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Let our experts help you meet your Google Calendar integration needs.

Contact us today for more information, including live demos, implementation options, and pricing details.

Our experts will help you understand:

  • How to integrate with Google Calendar 
  • What you need to know about the Google Calendar authentication and verification process
  • How Nylas helps mitigate the complexity of building your email integration

Embed scheduling instantly from any calendar
Costs of Google Calendar API vs. using the Nylas Calendar API

As your platform scales and your user base grows, so do costs for maintaining the Google Calendar integration directly, such as:

  • Operating servers
  • Building Google OAuth security features, infrastructure and support
  • Google OAUth app verification
  • Supporting the integration and troubleshooting bugs
  • Spending time specializing in .ics and iCal protocols

With Nylas, we manage the end-to-end integration for you. Our API comes out of the box with security certifications and helps expedite and ease the Google App submission process.

Calculate your savings with the Nylas APIs
With Nylas, everything is secure. Everything is connected.

Security is our top priority — we sweat the small stuff so you don’t have to. Nylas adheres to SOC 2 Type II, GDPR, HIPAA BAA, HITECH, ISO 27001, and CCPA. Data from every calendar you sync is encrypted and isolated with multi-level permission checks.

  • World-class security 
  • Token management
  • Whitelisted IPs
  • Data encryption
  • Granular authentication scopes
  • Gated permission checks
Download the Security Whitepaper
Frequently Asked Questions

What is Google Calendar API?

The Google Calendar API enables developers to add full calendar data and functionality into their app using a REST interface or through one of the client libraries Google offers for languages like Java, Python, PHP, JavaScript, and more.

How do I get started integrating with the Google Calendar API?

Before you can access a Google Calendar account, you will need to authenticate the account with the appropriate permissions. All Google APIs use OAuth 2.0 for account authentication and authorization, establishing a login process where your app negotiates with the Google Identity Platform to receive an access token for user accounts. This token provides limited access to user resources based on the scopes the user consented to as part of the authentication process. 

Alternatively, Nylas Hosted Auth auto-detects Google accounts, even for domains other than, and prompts users to sign in and accept the permissions your app needs. Your user’s credentials are stored safely on our SOC 2 Certified infrastructure, and Nylas provides an access token your app can use for Google Calendar data and functionality.

How do I integrate Google Calendar API with other apps or services?

To integrate Google Calendar API with other apps or services, you must obtain your API credentials, choose a client library or create HTTP requests, and then write the code to authenticate and interact with the API. You can use various programming languages and tools, such as the Google API Client Libraries, OAuth 2.0, and REST APIs.

Is there any limitation to the number of events or calendars I can access through the Google Calendar API?

Yes, there are some limitations to the number of events or calendars you can access through the Google Calendar API. The specific limitations depend on the type of account you have and the type of API request you are making.

What programming languages can I use to integrate the Google Calendar API?

The Google Calendar API can be integrated using various programming languages like Java, Python, Ruby, PHP, and .NET. You must set up a Google Cloud Console project and obtain the necessary credentials to get started. Then, you can use the client libraries and code samples provided by Google to make API requests and interact with the calendar data.

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