Skip to main content

Make Waves ’26 Step into AI’s glass box. Prague, 19–20 Oct.

Register now (opens in a new tab)
Retell AI
Google Calendar

Connect Retell AI and Google Calendar integrations

Explore ready-made Retell AI and Google Calendar templates and start automating in minutes.

Get started free

Create a custom workflow

Turn your Retell AI conversations into instant Google Calendar events automatically. Eliminate manual scheduling by letting Make transform every customer call, appointment request, and follow-up into organized calendar entries—no typing required, just voice-to-calendar automation that keeps your schedule perfectly synced.

Create a custom workflow

Every automation starts with a trigger and an action. Select one from each app to generate a workflow tailored to your needs.

Retell AI
Trigger: Watch Call
Google Calendar
Action: Select an action
1. Select a trigger

  • Trigger when a new call is created.

2. Select an action

  • Clears a primary calendar. This operation deletes all events associated with the primary calendar of an account.

  • Creates a new calendar.

  • Creates a new access control rule.

  • Creates a new event.

  • Deletes a calendar.

  • Deletes an access control rule.

  • Deletes an event.

  • Duplicates an event.

  • Returns metadata for a calendar.

  • Returns metadata of an access control rule.

  • Returns metadata for an event in the specific calendar.

  • Returns free/busy information for a set of calendars.

  • Performs an arbitrary authorized API call.

  • Updates an existing calendar.

  • Updates an existing access control rule.

  • Updates an existing event.

Select a trigger and an action

Create workflow (opens in a new tab)

Triggers and actions

When a conversation or call event occurs in Google Calendar, it triggers an automated workflow in Make that creates calendar events in Retell AI. Google Calendar serves as the trigger by detecting completed calls, customer conversations, or specific call outcomes, which then automatically initiates actions in Retell AI such as creating appointments, scheduling follow-up meetings, or adding events with relevant details from the AI-driven conversation. This integration eliminates manual data entry by automatically populating your Retell AI with events, reminders, and tasks based on voice AI interactions captured by Google Calendar.

Clear a Calendar
Clears a primary calendar. This operation deletes all events associated with the primary calendar of an account.
Action
Create a Calendar
Creates a new calendar.
Action
Create a Phone Call
Create a new outbound phone call
Action
Create a Phone Number
Buys a new phone number and binds agents.
Action
Create an Access Control Rule
Creates a new access control rule.
Action
Create an Event
Creates a new event.
Action
Create Knowledge Base
Create a new outbound phone call
Action
Create Retell LLM
Create a new outbound phone call
Action
Delete a Calendar
Deletes a calendar.
Action
Load more

How to set up Retell AI and Google Calendar in 5 easy steps

Date

·

Duration

Step 1

Add your app to your Make scenario

Log into your Make account and add the app module you want to connect, such as Google Calendar or Retell AI, to your automation workflow. Once added, click the 'Create a connection' button that appears to start linking the app to Make.

Date

·

Duration

Step 2

Get your API key from Retell AI

If you're connecting Retell AI, you'll need an API key from your Retell AI dashboard. Navigate to the API keys section, click 'Add' to generate a new key, and give it a name that helps you remember what it's for.

Date

·

Duration

Step 3

Enter your API key in Make

Copy the API key you just created in Retell AI and paste it into the 'API Key' field in Make's connection dialog. This key works like a secure password that allows Make to safely communicate with your Retell AI account.

Date

·

Duration

Step 4

Sign in with Google for Google Calendar

For Google Calendar, click the 'Sign in with Google' button instead of entering an API key. Log in with your Google account credentials and grant Make permission to access your calendar data so it can manage your events automatically.

Date

·

Duration

Step 5

Save and start using your connection

Click 'Save' to finalize your connection after entering all required information. Make will verify that everything is working correctly, and then you can start using the connected app in your automation scenarios right away.

Transform your workflow: Retell AI & Google Calendar integration benefits

Discover how integrating Retell AI with Google Calendar automates meeting scheduling, enables real-time availability checks, and optimizes call-to-calendar workflows for better team coordination.

Date

·

Duration

Automated meeting scheduling from AI calls

Automatically create Google Calendar events when Retell AI calls result in scheduled appointments, eliminating manual data entry and reducing scheduling errors.

Date

·

Duration

Real-time calendar availability for AI agents

Enable Retell AI voice agents to check Google Calendar availability in real-time during calls to instantly book meetings without double-booking.

Date

·

Duration

Instant call reminders and follow-ups

Trigger automated calendar reminders and follow-up tasks in Google Calendar based on outcomes from Retell AI call interactions.

Date

·

Duration

Efficient call-to-calendar workflow

Optimize your operations by automatically syncing call data, notes, and action items from Retell AI directly into Google Calendar events for complete visibility.

Support

FAQs

Everything you need to know about Make. Can't find the answer you're looking for? Please chat to our team.

By integrating Retell AI with Google Calendar through Make, you can automatically schedule AI-powered calls based on your calendar availability, send calendar invites after booking calls, and sync call records with calendar events. This eliminates manual data entry, prevents double-bookings, and ensures your AI call operations are perfectly coordinated with your schedule. Make's automation allows these systems to work together without requiring any coding knowledge.

With Make, you can create powerful automations such as: automatically creating Google Calendar events when new Retell AI calls are scheduled, triggering AI calls based on upcoming calendar appointments, updating calendar events with call outcomes and transcripts, sending follow-up meeting invites after successful AI conversations, and syncing call recordings or summaries to calendar event descriptions. These automations run 24/7, saving hours of manual work while keeping your teams perfectly synchronized.

No technical skills or coding are required. Make provides a visual, drag-and-drop interface that makes it easier for anyone to connect Retell AI and Google Calendar. You simply select triggers (like 'new calendar event created') and actions (like 'initiate Retell AI call'), and Make handles all the technical integration work. Pre-built templates and an intuitive workflow builder allow you to set up sophisticated automations in minutes, not weeks, regardless of your technical background.

Absolutely. Building a custom integration between Retell AI and Google Calendar would require hiring developers, ongoing maintenance, and significant time investment, potentially costing thousands of dollars. Make offers a scalable pricing model starting with a free tier, allowing you to test integrations before committing. You can automate hundreds or thousands of tasks monthly for a fraction of custom development costs, with the added benefit of instant updates, reliability, and the ability to modify workflows as your needs evolve.