The Most Secure & Reliable Integration for Apple Calendar

The Nylas Universal Calendar API provides full-featured integrations that quickly and easily sync your app with Apple Calendar, and every other calendar provider in the world.

  • Node
  • Java
  • Python
  • Ruby
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


Using Nylas to Integrate with Apple Calendar is Fast, Easy & Safe

Build an Apple Calendar integration into your application with the Nylas API, and give your users a full set of powerful calendar features without adding cost and scope to your product roadmap.

Nylas Universal APIs Power Integrations with Apple Calendar & All The Others

Create fully functional, bidirectionally syncing connections between your application and Apple Calendars with the Nylas CalDAV adapter.

Instant Object Translation

Connect your application to Apple Calendar via the Nylas CalDAV-Python package, which translates a python object into the CalDAV standard, and vice-versa.

Bidirectional Sync & Full CRUD

Sync data bidirectionally between Apple Calendars and your app, and enable full CRUD (create, read, update, and delete) access natively within your application.

Seamless User Experience

Allow users to access iCal events directly from the platforms they use to run their businesses.

Webhooks Notifications

Receive in-app notifications when certain events occur — webhooks are easy to integrate and scale seamlessly as your business grows.

The Nylas API For Apple Calendar Provides Application Access for All Users

Ensure that your application works with all of its potential users, without the cost and maintenance burden of building custom solutions for specific individual connections.

  • Apple has 1.4 billion users — don’t alienate a key segment of your customer base.
  • Bypass the complications of maintaining iCal integrations.
  • Leverage seamless CalDAV-Python object translation.
  • Sync historical and live events in real-time.

View the Build Vs. Buy Guide »

Everything is Secure. Everything is Connected.

Nylas is SOC 2 Certified, Privacy Shield certified, GDPR compliant, and HIPAA | HITECH, and FINRA ready. Data from every calendar you sync is encrypted and isolated with multi-level permission checks.

Learn How
  • World-Class Security Certifications
  • Token Management
  • Whitelisted IPs
  • Data Encryption
  • Granular Authentication Scopes
  • Gated Permission Checks
Learn How


How do I get started with the Nylas Calendar API?

You can create a developer account with Nylas and sync up to 10 calendars from different users for free using the Nylas Calendar API here.

Where do I access the Nylas Calendar API key?

You can access the Calendar API key directly from your Nylas dashboard. One key unlocks access to any calendar provider in the world! Exciting, we know.

How do my users activate calendar sync?

Your users can kick-start full calendar sync simply by authenticating access. Your users will input their credentials and then be redirected back to your application.

What kinds of companies use the Nylas Calendar API?

Learn how customers in the CRM, ATS, automotive, finance, and legal industries use the Nylas Calendar API on our case studies page.

What languages can I use to connect to the Nylas Calendar API?

We provide SDKs that make it easy to integrate your app using Python, Node.js, Java, or Ruby, or you can use a different language of choice to connect to our RESTful API.

How is the Calendar API secured?

The Nylas Calendar API encrypts 100% of your data with military-grade security standards. In addition, Nylas is GDPR compliant, SOC 2 compliant, and HIPAA and FINRA ready.

What are the pricing options for the Nylas Calendar API?

You can sync up to 10 accounts for free. After that, pricing is based on the number of accounts you have synced; you can view our pricing page for more details.

Additional questions about building your calendar integration?

Check out our comprehensive Getting Started Guide.