Calendar API

Power 100% of your users’ calendars with fully customizable scheduling

Connect with all major calendar providers using a single API and quickly build customizable scheduling directly in your app. 

Launch powerful native calendar capabilities quickly and securely with a single API.
  • Spend less time integrating and start accelerating your product velocity
  • Get maintenance-free connections with a 99.9% guaranteed uptime
  • Streamline scheduling with real-time, bi-directional calendar sync

Get connected with a Nylas expert to see our APIs in action.

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Our simple three-step process. Here‘s how it works:

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Get a free API key

Create an account to unlock our full platform for up to 5 accounts — no credit card required.

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Build integrations quickly

With just a few lines of code, you get full create, read, update, delete (CRUD) capabilities and bi-directional sync.

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Connect all your users

Whether you’re connecting 100 or 100 million accounts, you can rest easy knowing your data is safe.

Why the Nylas Calendar API?
  • Connect to all major calendar providers
    Integrate with Google, Outlook, IMAP, and all other major service providers without building and maintaining individual integrations.
  • Enhance business intelligence and user productivity
    Access unstructured scheduling data, coupled with the ability to configure scheduling rules, and automate booking workflows for more efficient user experiences. 
  • Rely on enterprise-grade security
    The Nylas platform has multiple levels of encryption, runs on AWS in a secure facility with active monitoring, and adheres to HIPAA BAA, HITECH, SOC 2 Type II, GDPR, ISO 27001, and CCPA.
Trusted by over 250,000 developers worldwide
  • LifeMD

How Upwork increased its CSAT by eliminating manual scheduling

We needed a secure and reliable way to support millions of our users [to hire twice as fast], that’s why we chose Nylas.

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Maksym Dudnyk

Product Manager, Upwork

Upwork eliminates back-and-forth scheduling to better connect clients with professionals.

Find out how they use Nylas to: 

  • Help users hire 2x faster
  • Increase CSAT score to mid-90s 
  • Schedule 5,000+ meetings a week
Read the full story

Deliver robust calendar features users want

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Availability endpoints

Allow users to view and select from real-time availability, eliminating the need for back-and-forth coordination.

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Event metadata

Enhance calendar clarity with metadata tagging and filtering, making event management more efficient and intuitive.

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Custom event reminders

Keep attendees promptly informed with customizable reminders across multiple channels like email, SMS, and messaging apps.

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Video conferencing

Effortlessly connect Zoom, Google Meet, and MS Teams for seamless integration of video conferencing links in your meeting invites.

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Virtual calendars

Extend scheduling capabilities beyond individual calendars to include resources and non-account holders, ensuring comprehensive event planning.

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Time zone detection

Automate time zone adjustments for global meeting planning, ensuring accuracy and convenience for all attendees.

Ready to start building?

Discover the power of the Nylas platform and connect up to 5 accounts for free.

Request a demo