How to Connect HelloAsso to the Contacts API (GHL)

GHL Contacts API x HelloAsso: Quick Overview

Steps to connect the GHL Contacts API with HelloAsso

This guide explains how to authenticate and use GHL’s Contacts API with HelloAsso data for syncing contacts, tasks, notes, and more. Learn how to fetch data, trigger automations, and map fields between HelloAsso and GHL.

Authenticate with the GHL Contacts API

Obtain an API key or OAuth token with the scope contacts.readonly, then configure your app to pass the token in each request.

Authenticate HelloAsso connection

Create an API client in HelloAsso and authorize it to access your GHL data through the integration, keeping credentials secure.

GHL Contacts API Endpoints Explained

Endpoints include: 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, 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: Contacts API x HelloAsso

Read-Only Contact Sync

Trigger: new contact created in HelloAsso

Actions: pull contact data, pull related tasks and notes, map fields to GHL contacts

GET /contacts/:contactId to pull details

Key fields: id, name, email, phone, status

Top 3 Connections: Contacts API x HelloAsso

Task & Note Synchronization

Trigger: updated tasks in HelloAsso

Actions: create/update tasks in GHL, fetch notes, link to contact

PUT /contacts/:contactId/tasks/:taskId

Key fields: taskId, status, title, dueDate

Top 3 Connections: Contacts API x HelloAsso

Tagging & Segmentation

Trigger: tags updated on a HelloAsso contact

Actions: POST /contacts/:contactId/tags to assign segments

POST /contacts/:contactId/tags

Key fields: contactId, tag

No-code benefits of GHL + HelloAsso integration

Automate data flow without custom code

Real-time syncing improves campaigns and follow-ups

Centralized analytics for HelloAsso campaigns in GHL

Key Terms & Glossary

This section defines authentication, endpoints, triggers, actions, and field mappings used in the integration.

OAuth

OAuth is the standard authorization protocol that grants access to GHL data without sharing passwords.

REST Endpoint

REST endpoints are URLs you call to read or modify resources like contacts, tasks, and notes.

Webhook

Webhook notifies your app when data changes so you can react in real time.

Payload

Payload is the data sent in requests and received in responses.

People also Search for:

Three creative ideas for GHL Contacts API + HelloAsso

Automated lead-to-contact pipeline

When a new HelloAsso lead is created, automatically sync a contact in GHL and assign a follow-up task.

Smart task starter

Create initial tasks in GHL based on HelloAsso form submissions to drive timely outreach.

Tag-based routing

Tag contacts in HelloAsso to route to different sales sequences in GHL.

Three steps to connect HelloAsso with GHL Contacts API

Step 1: Register API client

In HelloAsso, create an API client and generate credentials for the GHL integration.

Step 2: Configure authentication

Set up OAuth or API key with scope=contacts.readonly and test in a safe environment.

Step 3: Test endpoints

Call sample endpoints like GET /contacts/:contactId to verify data flow.

Frequently Asked Questions

What data can I access with the Contacts API?

With the Contacts API, you can read core contact data and related resources like tasks, notes, and tags. This enables syncing HelloAsso leads into your GHL CRM and keeping contact records aligned across platforms. The read-only scope prevents unintended changes while you validate the data flow.

Authenticate by obtaining a valid GHL token (OAuth or API key) with the appropriate scope (contacts.readonly). Include the token in the Authorization header of each request and refresh as needed. In HelloAsso, configure the API client to securely store and rotate credentials.

For syncing tasks, use endpoints that expose tasks under a contact, such as GET /contacts/:contactId/tasks and PUT /contacts/:contactId/tasks/:taskId for updates. Use POST /contacts/:contactId/tasks to create tasks when needed. These endpoints provide reliable task synchronization.

Yes. You can create new contacts with POST /contacts/ and delete existing ones with DELETE /contacts/:contactId. Be mindful of permissions and audit trails in your GHL workspace. For HelloAsso, ensure consent and data-rights compliance.

Map fields by aligning HelloAsso form fields to corresponding GHL contact fields (name, email, phone, tags). Use field mapping rules to ensure consistency and support bi-directional sync where allowed. Test mappings with sample records.

Webhooks are supported to notify your app of changes like new contacts or updated tasks. Configure webhook endpoints in your GHL app and handle events in HelloAsso to trigger automations accordingly.

API rate limits vary by plan; monitor calls in your GHL dashboard and implement exponential backoff for retries. If you exceed limits, stagger requests or batch operations to stay within quotas.

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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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