OnTime API

Closing the Gap

Integrate Microsoft Calendar Data with Your Business Solutions

OnTime® Group Calendar offers an open HTTP based API which can be used to build custom solutions on top of the OnTime® Group Calendar backend. Using the API you may extend your Intranet, CRM system or other business-critical applications with two-way real-time calendar data.

Use Case Examples

  • Salesforce

    Integrate your calendars, contacts and e-mail. Be able to launch OnTime’s UI directly inside your activity members in SalesForce.

    Learn more about the OnTime Partner solution brought by Qkom GmbH available here:

    button ontime for salesforce

  • Siebel CRM

    Full integration making schedules available in Siebel, MS Exchange/O365 and mobiles.


    Integrate approved PTO with your users' personal calendars, and display them visually in OnTime®

  • Homebanking

    Allow customers to find and book meetings with their preferred advisor directly from their home banking solution.

So How Do You Get Started?

  1. This email address is being protected from spambots. You need JavaScript enabled to view it. in order to obtain a license key to enable the API.
  2. Download the OnTime® Group Calendar free trial here.
  3. Download the API documentation on your right.

Prices from...

Find out how little to invest to get everything that OnTime® brings to you and your organisation.
(Prices displayed for Add-on only)


(Less than 200 licenses)

€ 0,74
per user/month
(over a 3 year period)


(200 - 750 licenses)

€ 0,44
per user/month
(over a 3 year period)


(750+ licenses)

€ 0,20
per user/month
(over a 3 year period)

Try OnTime® for Microsoft for a Free 60-Day Period

Fill out the form, and receive an e-mail with a license key and a link to your download within 1 minute.

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