Build great scheduling features that work with the Office 365 Calendar API

Connect to the Office 365 Calendar API with the help of the Cronofy Calendar API

Cronofy works with

Scheduling everything for everyone

Cronofy offers

99.5% uptime SLA
First-class security
Well-documented API
Real-time synchronization
Work with one API, build features that work with all major calendar services
Work in a language you're familiar with
Easy to connect

Real-time calendar sync for your software

  • No Microsoft accreditation required
  • Two-way, multi-calendar sync
  • Read, write, and edit calendar events
  • Changes sync in real time
  • Work with past, present, and future versions of the Office 365 Calendar API
Speedy start

Streamline your development time

Try the API for free

The 8× service is designed to provide on demand access to secure video meetings for anyone with a web browser. We’re genuinely excited that Cronofy is bringing this capability to any service that they’re powering scheduling for.

Tim Mooney
Head of Product, Video Collaboration - 8x8
Explore our customer stories

"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."


Customizable UI Elements

  • Use our customizable UI Elements in any combination you want
  • Users can connect and disconnect calendars, set working hours, book appointments, and more
  • Alter the design to match your branding
Streamlined process

Calendar sync to match your needs

  • Connect to any – or all – the calendars on a company domain at the same time with Enterprise Connect
  • Create one entry point per company, not one per calendar, adding an extra layer of security
  • Authorize connectivity individually, by group, or by organization
  • Meetings can be based on the availability of attendees, meeting rooms, and resources at the same time
  • Create virtual calendars for rooms and resources
Peace of mind

Safety and security sorted

  • Built with security and privacy in mind
  • Option to access users’ free/busy information
  • GDPR and HIPAA compliant
  • No ongoing maintenance required
No strings attached

Try for free for as long as you need

Make your first API call

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