Announcing the Calendar API: access availability, events, and scheduling

April 15, 2025

Unified.to now supports a new integration category: Calendaring. Whether you're powering scheduling, automation, or AI assistants, our new Calendar API gives you structured access to the entire meeting lifecycle — from availability to transcripts — all in one unified model.

One API. Four core capabilities.

• Free/busy availability
  Check when users or teams are available — across platforms.
• Event lifecycle
  Read, create, and upddate calendar events, including support for video conferencing metadata.
• Scheduling links
  Access and manage booking links from tools like Calendly, SavvyCal, and more.
• Recordings & transcripts
  Retrieve structured recordings, attendee metadata, and transcripts — ideal for AI-powered meeting summaries and training.

Everything is returned in a normalized schema with real-time sync — no extra tooling, no provider-specific complexity. Read the docs

Use cases

• AI scheduling assistants
  Let your product manage calendars and meetings through a single API.
• Workflow automation
  Trigger events based on user availability, meeting status, or link activity.
• In-app scheduling
  Embed scheduling flows in your product — no need for third-party tools.
• Post-meeting intelligence
  Feed transcripts and metadata into AI models or analytics pipelines.

Built for scale and security

• Real-time sync via native or virtual webhooks
• Unified OAuth & schemas across every platform
• Zero data storage — your customers' calendar data never touches our servers (learn more)

We abstract away auth, webhook orchestration, and third-party platform quirks so your team can focus on building.

Available now

Our Unified Calendar API is available in all plans and accessible during your 30-day free trial.

We support the following calendar and scheduling platforms:

• Acuity Scheduling (scheduling links)
• Apple iCloud (events)
• Cal.com (scheduling links, events)
• Calendly (availability, scheduling links)
• Google Calendar (availability, events)
• Google Meet (recordings & transcripts)
• HubSpot (scheduling links)
• lemcal (scheduling links, events)
• Microsoft Outlook (availability, events)
• Microsoft Teams (availability, events, recordings & transcripts)
• SavvyCal (events, scheduling links)
• SimpleMeet.me (scheduling links)
• SquareUp (scheduling links, events)
• Webex (events, recordings & transcripts)
• Zoom (events, recordings & transcripts, scheduling links)

Want early access to a specific calendar application? Let us know.

The Unified.to difference

Unlike other integration solutions, we don't store or cache calendar data. Everything passes through securely — with real-time delivery and normalized models designed for AI-ready products.

Whether you're building assistants, calendars, CRMs, or AI copilots — Unified.to's Calendar API gives your product a foundation that's flexible, secure, and future-proof.

Start your free trial or book a demo to explore what you can build.