Easy integration with the Outlook.com Calendar API

Provide your users with a better scheduling experience

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99.5% uptime SLA

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Privacy as a priority

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In-depth documentation

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Real-time synchronization

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Work with one API, build features that work with Microsoft Exchange (even on-premise), Office 365, Apple, and Google Calendar APIs

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One version of a calendar event is created, even if people using other calendar services are invited

Two-way, multi-calendar sync

  • Read, write, and edit calendar events
  • Sync changes in real time
  • Create one version of a calendar event, not multiple versions like if an event is created directly in Outlook.com and shared with users of other calendar services
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Go live in days, not months

Try the API for free

Cronofy’s documentation, sample apps and support is excellent and has enabled a fast and painless calendar integration. Not having to integrate with different calendar providers and having almost no maintenance to speak of has allowed us to focus on delivering scheduling solutions based on the real-time availability of our users quickly.

David Wennergren
CTO - TeamTailor

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Add customizable UI elements

  • Use our customizable UI Elements in any combination you need
  • Users can connect and disconnect calendars, set working hours, or book appointments
  • Change colors and design to match your branding
Set availability hours with Availability Rules

Calendar connectivity for organizations of every size

  • Connect to all the calendars on a company domain at the same time with Enterprise Connect
  • Deal with one entry point per company, not one per calendar
  • Give customers full control over who is connected and when
  • Book meetings based on the availability of attendees and meeting rooms
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Make your first API call in minutes

Create your free developer account to try our full range of scheduling solutions with up to 20 users.

First-class security

  • Access users’ free/busy information instead of all or nothing
  • GDPR and HIPAA compliant
  • No ongoing maintenance required
  • Authorize connectivity individually, by group, or by organization

Try for free for as long as you need

  • 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