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Calendly Availability API

Endpoints for viewing available times for event types and managing user availability schedules.

Calendly Availability API is one of 14 APIs that Calendly publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Availability. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 4 operations across 4 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

Requests are made against a single base URL, https://api.calendly.com.

4 operations 4 paths 4 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Base URL
https://api.calendly.com
Authentication
HTTP Bearer
Terms of Service
Resource Areas
1

Authentication & Security 1

Calendly Availability API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — Personal access token or OAuth 2.1 access token. Include in the Authorization header as Bearer {token}.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Availability 4

Endpoints for viewing available times for event types and managing user availability schedules.

GET
/event_type_available_times
List event type available times
listEventTypeAvailableTimes 3 params → 200400401
GET
/user_busy_times
List user busy times
listUserBusyTimes 3 params → 200400401
GET
/user_availability_schedules
List user availability schedules
listUserAvailabilitySchedules 1 param → 200401
GET
/user_availability_schedules/{uuid}
Get user availability schedule
getUserAvailabilitySchedule 1 param → 200401404

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are BusyTime (6 properties), AvailabilitySchedule (5 properties), AvailableTime (4 properties), Error (3 properties). Each schema is shown below with its type and property counts.

BusyTime
object
A time period during which a user is busy based on their connected calendars.
6 properties
Error
object
An error response from the Calendly API.
3 properties
AvailableTime
object
An available time slot for an event type that can be booked by an invitee.
4 properties
AvailabilitySchedule
object
An availability schedule defining recurring time windows when a user is available for meetings.
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

calendly-availability-api-openapi.yml Raw ↑

Other APIs Calendly publishes across the network.

Calendly Webhook API
Calendly Embed API
Calendly Activity Log API
Calendly Data Compliance API
Calendly Event Types API
Calendly Groups API
Calendly Invitees API
Calendly Organizations API
Calendly Routing Forms API
Calendly Scheduled Events API
Calendly Shares API
Calendly Users API
Where this information came from

This is an independent, third-party profile of Calendly Availability API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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