---
title: "Integrations - Onsched"
url: "https://docs.unified.to/integrations/onsched"
description: "Build OnSched integrations faster with our Unified API — Calendar & Meetings data, OAuth2 client credentials, real-time sync."
date: "2026-11-03T19:39:55.407Z"
updated: "2026-11-03T19:39:55.407Z"
---
![](https://api.unified.to/docs/images/onsched.png)

# OnSched integration

[Back to integrations](https://docs.unified.to/integrations.md)

#### Overview

Company website:

<https://www.onsched.com>

Integration launch date:

November 2, 2026

API Categories:

[Calendar & Meetings](https://docs.unified.to/calendar/overview.md)[CRM](https://docs.unified.to/crm/overview.md)[Passthrough](https://docs.unified.to/passthrough/overview.md)

API Authorization:

 OAuth2 client credentials flow

Data-regions:

 Production Staging

#### CALENDAR CALENDAR

End-API object:

 resource

Unified API Methods:

[List](https://docs.unified.to/calendar/calendar/List%5Fall%5Fcalendars.md)[Get](https://docs.unified.to/calendar/calendar/Retrieve%5Fa%5Fcalendar.md)[Update](https://docs.unified.to/calendar/calendar/Update%5Fa%5Fcalendar.md)[Remove](https://docs.unified.to/calendar/calendar/Remove%5Fa%5Fcalendar.md)

List options:

limitoffset

Readable fields:

[description](https://docs.unified.to/calendar/calendar/model.md)[id](https://docs.unified.to/calendar/calendar/model.md)[metadata](https://docs.unified.to/calendar/calendar/model.md)[name](https://docs.unified.to/calendar/calendar/model.md)

Writable fields:

[description](https://docs.unified.to/calendar/calendar/model.md)[metadata](https://docs.unified.to/calendar/calendar/model.md)[name](https://docs.unified.to/calendar/calendar/model.md)

#### CALENDAR EVENT

End-API object:

 appointment

Unified API Methods:

[List](https://docs.unified.to/calendar/event/List%5Fall%5Fevents.md)[Get](https://docs.unified.to/calendar/event/Retrieve%5Fan%5Fevent.md)[Update](https://docs.unified.to/calendar/event/Update%5Fan%5Fevent.md)[Remove](https://docs.unified.to/calendar/event/Remove%5Fan%5Fevent.md)

List options:

calendar\_idend\_ltlimitoffsetstart\_gte

Readable fields:

[attendees](https://docs.unified.to/calendar/event/model.md)[calendar\_id](https://docs.unified.to/calendar/event/model.md)[end\_at](https://docs.unified.to/calendar/event/model.md)[id](https://docs.unified.to/calendar/event/model.md)[location](https://docs.unified.to/calendar/event/model.md)[metadata](https://docs.unified.to/calendar/event/model.md)[notes](https://docs.unified.to/calendar/event/model.md)[start\_at](https://docs.unified.to/calendar/event/model.md)[status](https://docs.unified.to/calendar/event/model.md)[subject](https://docs.unified.to/calendar/event/model.md)[timezone](https://docs.unified.to/calendar/event/model.md)

Writable fields:

[location](https://docs.unified.to/calendar/event/model.md)[metadata](https://docs.unified.to/calendar/event/model.md)[notes](https://docs.unified.to/calendar/event/model.md)

#### CALENDAR BUSY

End-API object:

 unavailability

Unified API Methods:

[List](https://docs.unified.to/calendar/busy/List%5Fall%5Fbusies.md)

List options:

calendar\_idend\_ltstart\_gtelimit

 required filter 

Readable fields:

[description](https://docs.unified.to/calendar/busy/model.md)[end\_at](https://docs.unified.to/calendar/busy/model.md)[start\_at](https://docs.unified.to/calendar/busy/model.md)

Writable fields:

[\-none-](https://docs.unified.to/calendar/busy/model.md)

#### CALENDAR LOCATION

End-API object:

 location

Unified API Methods:

[List](https://docs.unified.to/calendar/location/List%5Fall%5Flocations.md)[Get](https://docs.unified.to/calendar/location/Retrieve%5Fa%5Flocation.md)

List options:

limitoffset

Readable fields:

[address](https://docs.unified.to/calendar/location/model.md)[id](https://docs.unified.to/calendar/location/model.md)[metadata](https://docs.unified.to/calendar/location/model.md)[name](https://docs.unified.to/calendar/location/model.md)

Writable fields:

[\-none-](https://docs.unified.to/calendar/location/model.md)

#### CRM CONTACT

End-API object:

 customer

Unified API Methods:

[List](https://docs.unified.to/crm/contact/List%5Fall%5Fcontacts.md)[Get](https://docs.unified.to/crm/contact/Retrieve%5Fa%5Fcontact.md)[Create](https://docs.unified.to/crm/contact/Create%5Fa%5Fcontact.md)[Update](https://docs.unified.to/crm/contact/Update%5Fa%5Fcontact.md)[Remove](https://docs.unified.to/crm/contact/Remove%5Fa%5Fcontact.md)

List options:

limitoffsetquery

Readable fields:

[emails](https://docs.unified.to/crm/contact/model.md)[first\_name](https://docs.unified.to/crm/contact/model.md)[id](https://docs.unified.to/crm/contact/model.md)[last\_name](https://docs.unified.to/crm/contact/model.md)[metadata](https://docs.unified.to/crm/contact/model.md)[name](https://docs.unified.to/crm/contact/model.md)[telephones](https://docs.unified.to/crm/contact/model.md)

Writable fields:

[emails](https://docs.unified.to/crm/contact/model.md)[first\_name](https://docs.unified.to/crm/contact/model.md)[last\_name](https://docs.unified.to/crm/contact/model.md)[metadata](https://docs.unified.to/crm/contact/model.md)[name](https://docs.unified.to/crm/contact/model.md)[telephones](https://docs.unified.to/crm/contact/model.md)

 required fields 

#### PASSTHROUGH

Unified API Methods:

[POST](https://docs.unified.to/passthrough/overview.md)[GET](https://docs.unified.to/passthrough/overview.md)[PUT](https://docs.unified.to/passthrough/overview.md)[DELETE](https://docs.unified.to/passthrough/overview.md)

List options:

\-none-

Readable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)

Writable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)