---
title: "Get free/busy for a connection"
method: GET
path: "/v2/calendars/connections/{connectionId}/freebusy"
tags: ["Cal Unified Calendars"]
---

# Get free/busy for a connection

`GET /v2/calendars/connections/{connectionId}/freebusy`

## Request

- The document declares no server URL.
- Auth: none declared. Required headers: `Authorization`

Get busy time slots for the specified calendar connection.

## Path parameters

- `connectionId` string, required

## Query parameters

- `from` string, required
- `to` string, required
- `timeZone` string

## Headers

- `Authorization` string, required

## Response `200`

- GetBusyTimesOutput
  - `status` 'success' | 'error', required
  - `data` BusyTimesOutput[], required
    - `start` string, date-time, required
    - `end` string, date-time, required
    - `source` string, nullable

## Changes

- **2026-03-18** (v2) `6f3c92eaf995`: 1 info
  - endpoint added
- **2025-09-26** (v2) `daa3e48bc03a`: 1 breaking
  - api path removed without deprecation

[Operation history](https://skmtc.dev/calcom/apis/cal-diy-api-v2/changes/v2/calendars/connections/:connectionId/freebusy/get.md)

---

[API](https://skmtc.dev/calcom/apis/cal-diy-api-v2.md) - [All operations](https://skmtc.dev/calcom/apis/cal-diy-api-v2/llms.txt) - [OpenAPI document](https://skmtc.dev/calcom/apis/cal-diy-api-v2/revisions/cac5ec02a46b?raw)