How to Connect Zapier App Connector to Contacts API (Canto)

Integrate Contacts API with Zapier App Connector to automate your workflows.

Step-by-step guide to connecting Contacts API with Zapier App Connector.

This guide explains how to connect the Contacts API (GHL) using the Zapier App Connector. Learn how to authenticate, access core resources such as contacts, tasks, notes, and appointments, and build no-code automations that move data between GHL and your favorite apps.

Authentication for Contacts API

Authenticate against the Contacts API with the required scope (contacts.readonly). Use OAuth or API keys issued to your Zapier app and test the connection with sample requests.

Authentication for Zapier App Connector

In Zapier, configure the app’s credentials and OAuth flow so Zapier can securely access your GHL account and perform actions on contacts, tasks, notes, and appointments.

Contacts API Endpoints

GET /contacts/:contactId GET /contacts/:contactId/tasks GET /contacts/:contactId/tasks/:taskId GET /contacts/:contactId/notes GET /contacts/:contactId/notes/:id GET /contacts/:contactId/appointments GET /contacts/ GET /contacts/business/:businessId contacts.write POST /contacts/ PUT /contacts/:contactId DELETE /contacts/:contactId POST /contacts/:contactId/tasks PUT /contacts/:contactId/tasks/:taskId PUT /contacts/:contactId/tasks/:taskId/completed DELETE /contacts/:contactId/tasks/:taskId POST /contacts/:contactId/tags

Top 3 Connections Between Contacts API and Zapier App Connector

Fetch a Contact and Its Tasks

Trigger: New or updated contact; retrieve core details with GET /contacts/:contactId and pull related tasks with GET /contacts/:contactId/tasks.

Actions: GET /contacts/:contactId; GET /contacts/:contactId/tasks; POST /contacts/ to create; PUT /contacts/:contactId/tasks/:taskId to update tasks.

GET /contacts/:contactId; GET /contacts/:contactId/tasks

Key fields: contactId, taskId; include contactId with every request.

Top 3 Connections Between Contacts API and Zapier App Connector

Create or Update Contacts and Their Tasks

Trigger: New contact creation or updates; then create or update related tasks via POST /contacts/ and POST /contacts/:contactId/tasks.

Actions: POST /contacts/ to create; PUT /contacts/:contactId to update; POST /contacts/:contactId/tasks to add tasks; PUT /contacts/:contactId/tasks/:taskId to modify tasks.

POST /contacts/; PUT /contacts/:contactId; POST /contacts/:contactId/tasks

Key fields: contactId; taskId optional for task actions.

Top 3 Connections Between Contacts API and Zapier App Connector

Link Contacts to Notes and Appointments

Trigger: A note or appointment is created or updated; then link it to the related contact via POST /contacts/:contactId/notes or GET /contacts/:contactId/appointments.

POST /contacts/:contactId/notes; GET /contacts/:contactId/appointments

Key fields: contactId, noteId, appointmentId.

No-Code Benefits of Connecting Contacts API with Zapier App Connector

Automate repetitive workflows without writing code.

Keep contact data in sync across your favorite apps in real-time.

Build powerful, trigger-based automations that scale with your business.

Key Terms and Glossary

Key elements include endpoints, authentication, triggers, actions, data fields, rate limits, and error handling.

API Endpoint

A URL path that exposes a specific operation on the GHL Contacts API.

HTTP Method

GET, POST, PUT, DELETE — the action you perform on a resource.

Contact

A person stored in the GHL Contacts database.

Resource Path

The URL pattern used to access a resource in the API.

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Creative ideas for using Contacts API with Zapier App Connector

Automate contact updates from spreadsheets

Import new or updated contacts from a spreadsheet and push changes to GHL automatically, including associated tasks.

Sync tasks and notes across apps

Automatically mirror tasks and notes between GHL and your project management or note apps to keep teams aligned.

Trigger onboarding sequences on new contacts

Start onboarding flows when a new contact is added, including tasks for follow-ups and reminders.

3 Steps to Connect Contacts API with Zapier App Connector

Create and configure your GHL app in Zapier

Register your app credentials, select the proper OAuth scope (contacts.readonly), and test the connection.

Authenticate and test the connection

Authenticate against the GHL API in Zapier and run sample requests to verify access to contacts, tasks, notes, and appointments.

Set up a sample workflow

Create a Zap that fetches a contact and then creates related tasks, notes, or events.

Frequently Asked Questions

What is the GHL Contacts API?

The GHL Contacts API exposes endpoints to read and manipulate contact data, tasks, notes, and events. It enables building integrations without modifying your core systems. In Zapier, you connect using the app credentials and scopes. This lets you automate movement of data between GHL and other apps.

Authentication can be via OAuth 2.0 or API Key depending on your setup. In Zapier App Connector, configure the OAuth flow and request the appropriate scope: contacts.readonly. Test the connection by making a sample GET to /contacts/:contactId.

You have endpoints for getting a list of contacts, a specific contact, tasks, notes, appointments, and more. For create, update, and delete there are POST, PUT, DELETE variants. Review the endpoint list to map to your workflow.

Yes. You can create and update contacts and their tasks via POST and PUT endpoints. Use a Zap to chain actions such as creating a contact then adding tasks.

To link notes and appointments, use POST /contacts/:contactId/notes and GET /contacts/:contactId/appointments, and ensure note/appointment context includes the contactId.

No-code benefits include rapid automation and easy maintenance. However, complex data mappings may require careful field matching; test each trigger/action and handle errors gracefully.

For help, consult official documentation, join community forums, or contact support for assistance with your GHL and Zapier App Connector setup.

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🚀 GoHighLevel Integration

Complete Operations Catalog - 126 Actions & Triggers

126
Total Operations
55
Polling Triggers
71
Actions
14
Categories
👥

Contacts

10 Triggers 18 Actions
Trigger
Get Contact
Retrieve a specific contact by ID
Trigger
Search Contacts
Advanced search with filters
Trigger
Get Contacts by Business
Retrieve contacts linked to a business
Trigger
Get Duplicate Contact
Check for duplicate contacts
Trigger
Get Contact Appointments
List all appointments for a contact
Trigger
Get Contact Tasks
Retrieve all tasks for a contact
Trigger
Get Contact Task by ID
Get specific task details
Trigger
Get Contact Notes
List all notes for a contact
Trigger
Get Contact Note by ID
Retrieve specific note details
Trigger
List Contacts (Deprecated)
Legacy contact listing method
Action
Create Contact
Add a new contact to the system
Action
Update Contact
Modify existing contact information
Action
Find Contact
Search by email, phone, or ID
Action
Delete Contact
Remove a contact permanently
Action
Upsert Contact
Create or update contact automatically
Action
Add Tags to Contact
Tag contacts for organization
Action
Remove Tags from Contact
Remove specific tags
Action
Bulk Update Contact Tags
Add or remove multiple tags at once
Action
Create Contact Task
Add a new task for a contact
Action
Update Contact Task
Modify existing task details
Action
Complete Contact Task
Mark task as complete
Action
Delete Contact Task
Remove a task permanently
Action
Create Contact Note
Add notes to contact records
Action
Update Contact Note
Edit existing notes
Action
Delete Contact Note
Remove notes from contacts
Action
Add Contact to Campaign
Enroll contact in campaign
Action
Remove from Campaign
Remove contact from specific campaign
Action
Remove from All Campaigns
Unenroll from all campaigns
📅

Calendars & Appointments

13 Triggers 21 Actions
Trigger
List Calendar Groups
Get all calendar groups
Trigger
List Calendars
Retrieve all calendars
Trigger
Get Calendar by ID
Get specific calendar details
Trigger
Get Free Slots
Check calendar availability
Trigger
List Calendar Events
Get all scheduled events
Trigger
List Blocked Slots
View unavailable time slots
Trigger
Get Appointment
Retrieve appointment details
Trigger
List Appointment Notes
Get notes for appointments
Trigger
List Calendar Notifications
View notification settings
Trigger
Get Calendar Notification
Get specific notification
Trigger
List Calendar Resources
View rooms and equipment
Trigger
Get Calendar Resource
Get specific resource details
Action
Create Calendar Group
Set up new calendar group
Action
Update Calendar Group
Modify calendar group settings
Action
Update Group Status
Enable or disable calendar group
Action
Delete Calendar Group
Remove calendar group
Action
Validate Group Slug
Check if slug is available
Action
Create Calendar
Add new calendar
Action
Update Calendar
Modify calendar settings
Action
Delete Calendar
Remove calendar permanently
Action
Create Appointment
Book new appointment
Action
Update Appointment
Modify appointment details
Action
Delete Event
Cancel and remove event
Action
Create Block Slot
Block time on calendar
Action
Update Block Slot
Modify blocked time
Action
Create Appointment Note
Add notes to appointments
Action
Update Appointment Note
Edit appointment notes
Action
Delete Appointment Note
Remove appointment notes
Action
Create Calendar Notification
Set up reminders
Action
Update Notification
Modify notification settings
Action
Delete Notification
Remove notification
Action
Create Calendar Resource
Add room or equipment
Action
Update Calendar Resource
Modify resource details
Action
Delete Calendar Resource
Remove resource
💼

Opportunities

3 Triggers 7 Actions
Trigger
Search Opportunities
Find opportunities with filters
Trigger
Get Opportunity
Retrieve specific opportunity
Trigger
List Pipelines
View all opportunity pipelines
Action
Create Opportunity
Add new sales opportunity
Action
Update Opportunity
Modify opportunity details
Action
Delete Opportunity
Remove opportunity
Action
Update Opportunity Status
Change status (open, won, lost)
Action
Upsert Opportunity
Create or update opportunity
Action
Add Followers
Assign team members to follow
Action
Remove Followers
Unassign followers
👤

Users

4 Triggers 3 Actions
Trigger
Search Users
Find users with filters
Trigger
Filter Users by Email
Search users by email address
Trigger
Get User
Retrieve user details
Trigger
List Users by Location
Get users in specific location
Action
Create User
Add new user to system
Action
Update User
Modify user information
Action
Delete User
Remove user from system
💬

Conversations & Messages

8 Triggers 2 Actions
Trigger
Search Conversations
Find conversations by filters
Trigger
Get Conversation
Retrieve conversation details
Trigger
Get Email by ID
Retrieve specific email
Trigger
Get Message by ID
Get specific message details
Trigger
Get Messages by Conversation
List all conversation messages
Trigger
Get Message Recording
Retrieve voice recording
Trigger
Get Message Transcription
Get transcribed message text
Trigger
Download Transcription
Download transcription file
Action
Update Message Status
Change message read/unread status
Action
Agent Typing Indicator
Show typing indicator in chat
🏢

Businesses

2 Triggers 3 Actions
Trigger
Get Business
Retrieve business details
Trigger
List Businesses by Location
Get all businesses in location
Action
Create Business
Add new business
Action
Update Business
Modify business details
Action
Delete Business
Remove business
🔄

Workflows & Campaigns

3 Triggers 5 Actions
Trigger
List Workflows
Get all workflows
Trigger
List Snapshots
View available snapshots
Trigger
List Campaigns
Get all campaigns
Action
Add Contact to Workflow
Enroll in workflow automation
Action
Remove from Workflow
Unenroll from workflow
Action
Add Contact Followers
Assign followers to contact
Action
Remove Contact Followers
Unassign followers
Action
Bulk Business Update
Add/remove contacts from business
⚙️

Other Operations

20 Triggers 8 Actions
Trigger
List Locations
Get all locations
Trigger
List Custom Fields
View custom field definitions
Trigger
Get Company
Retrieve company information
Trigger
Find Associations
Search associations
Trigger
Get Association
Retrieve association details
Trigger
Get Association Key
Get key by name
Trigger
Get Association by Keys
Find by object keys
Trigger
Get Relations by Record
List record relations
Trigger
Check Blog URL Slug
Verify slug availability
Trigger
Get Blog Authors
List blog authors
Trigger
Get Blog Categories
List blog categories
Trigger
Get Blog Posts
List posts by blog
Trigger
Get Blogs by Location
List location blogs
Action
Find Location by ID
Retrieve location details
Action
Create Location
Add new location
Action
Create Association
Link related records
Action
Update Association
Modify association
Action
Delete Association
Remove association
Action
Create Relation
Establish record relation
Action
Delete Relation
Remove record relation
Action
Create Blog Post
Publish new blog post
Action
Update Blog Post
Edit blog post

✨ Key Capabilities

📊 Contact Management

  • 10 custom field slots per contact
  • Advanced search with filters
  • Duplicate detection
  • Tag management (bulk operations)
  • Full task and note management
  • Campaign & workflow enrollment

📅 Calendar Features

  • Calendar groups with slugs
  • Multiple calendar types
  • Free slot checking
  • Appointment booking system
  • Blocked slots management
  • Room & equipment resources

💼 Sales Pipeline

  • Multi-pipeline support
  • Stage management
  • Status tracking (won, lost, etc)
  • Monetary value tracking
  • User assignment
  • Follower management

🔄 Automation Ready

  • Workflow automation support
  • Campaign management
  • Polling triggers (1-15 min)
  • Real-time conversations
  • Bulk operations
  • Upsert capabilities
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