Build great scheduling features for your Google Calendar users with the Cronofy Calendar API

Read the documentation


Optimized documentation


99.95% uptime SLA as standard


Only deal with the data you need


Reliable synchronization


Support for all major calendar services


Works whether you want one or unlimited users connected

Build more scheduling features in less time

  • Authorize calendar access individually, as a group, or as an organization
  • Connect to the schedules of rooms and resources
  • Create virtual calendars for things that require scheduling but don’t need a calendar
  • Track event registrations and set capacities
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Built by developers, for developers

  • SDKs are available in Python, Ruby, PHP, and more
  • In-depth developer documentation
  • Step-by-step instructions available in our Getting Started Guide
  • Support for all past, present, and future versions of Google calendars
Try the API for free

Implementing Cronofy was painless – they provide a simple and clear API that allowed me to have the integration live to customers in less than one month.

Drew Zader
Senior Software Engineer - Handshake

Explore our customer stories

Advanced calendar sync

  • Read, write, and edit calendar events
  • Get up and running faster with our UI Elements
  • Provide a better scheduling experience for your customers

Real-time scheduling for everyone

  • Add real-time scheduling features to your software
  • Send booking links to customers and interview candidates
  • Customizable UI Elements to match your branding

Enhanced privacy and security

  • Choose the privacy levels you need: access everything, or only users’ free/busy information
  • Connect to Apple,, Office 365, and Exchange calendars too
  • GDPR and HIPAA compliant
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Experiment with the full range of features for free

  • Create your free developer account to try our API for free
  • Experiment with the full range of features
  • Sync up to 20 calendars to your trial account
  • Only pay when you’re ready to go live

Try the API

Create your free developer account to get your API key and get started in minutes.

Make your first API call