How to Connect Synthflow AI to the Contacts API

GHL Contacts API x Synthflow AI: A practical integration guide

How to connect the GHL Contacts API with Synthflow AI

This guide walks you through authentication endpoints and best practices to connect the GHL Contacts API with Synthflow AI.

Authentication for the GHL Contacts API

Authenticate using your GHL credentials with the required scope: contacts.readonly. Use OAuth 2.0 or an API key as configured in your GHL developer settings.

Authentication for Synthflow AI

To connect, configure the GHL client credentials in the Synthflow AI dashboard and authorize the app to access your GHL Contacts data.

GHL Contacts API Endpoints

Key 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, as well as write endpoints such as 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 GHL Contacts API and Synthflow AI

Real-time contact sync

Trigger: when a contact is created or updated in GHL, the change is pushed to Synthflow AI in real time.

Actions: create or update the corresponding contact in Synthflow AI, and optionally sync related tasks and notes.

Method path: GET /contacts/:contactId to fetch the latest data before syncing

Key fields: id, email, fullName, phone, tags

Top 3 connections between GHL Contacts API and Synthflow AI

Bulk or scheduled syncing

Trigger: scheduled interval or webhook to batch sync contacts

Actions: bulk create or update in Synthflow AI using POST /contacts and PUT /contacts/:contactId

Paths: POST /contacts for bulk create; GET /contacts for listing; PUT /contacts/:contactId for updates

Key fields: contactId, email, status, lastModified

Top 3 connections between GHL Contacts API and Synthflow AI

Notes and tasks synchronization

Trigger: notes or tasks changes in GHL trigger updates in Synthflow AI

Actions: push notes and tasks to Synthflow AI linked to the corresponding contact record

Paths: POST /contacts/:contactId/tasks, POST /contacts/:contactId/notes

Fields: taskId, noteId, contactId, content, dueDate

No-code benefits of connecting GHL Contacts API with Synthflow AI

Automate two way data flow without writing code

Leverage ready made endpoints to accelerate automation and testing

Improve data accuracy and consistency across systems with synchronized records

Key terms and glossary

Key elements include endpoints triggers actions authentication error handling and data mapping to ensure reliable sync

API

API stands for Application Programming Interface. It defines how Synthflow AI talks to the GHL Contacts API using REST endpoints and data formats.

Authentication

Authentication verifies identity to access GHL data. Use OAuth 2.0 or API keys with the required scopes like contacts.readonly.

Endpoint

Endpoints are URLs that let you read or modify GHL data such as contacts tasks notes and more.

Webhook

A webhook is a callback URL that GHL can call to notify Synthflow AI of changes in real time.

People also Search for:

Creative ideas for integrating GHL Contacts API with Synthflow AI

Idea 1: Personalization triggers

Use contact data to trigger personalized flows in Synthflow AI at key moments in the customer journey

Idea 2: Proactive follow ups

Set up proactive reminders and tasks when engagement drops or milestones approach

Idea 3: Segmented campaigns

Segment audiences in Synthflow AI from GHL tags and notes to power targeted campaigns

Three steps to connect GHL Contacts API with Synthflow AI

Step 1: Gather credentials

Obtain your GHL client ID and secret and configure them in the Synthflow AI dashboard

Step 2: Configure endpoints and scopes

Select the read only scope for contacts and map endpoints to Synthflow AI fields

Step 3: Test and monitor

Run test requests validate data mapping and monitor sync activity

Frequently Asked Questions

What is the GHL Contacts API and how do I use it with Synthflow AI?

The GHL Contacts API lets you access contact data, tasks, notes and more. Synthflow AI can consume these endpoints to automate workflows. Begin by authenticating with the GHL account and granting the necessary scopes. Then configure your GHL credentials in Synthflow AI to start syncing data.

Supported methods include OAuth 2.0 and API keys depending on your GHL setup. Use the recommended flow for secure token handling and store credentials in the Synthflow AI secure vault. Periodically rotate credentials and monitor access scopes to maintain security.

For contacts and tasks, use endpoints such as GET /contacts/:contactId, POST /contacts, and POST /contacts/:contactId/tasks. Notes are accessed via GET /contacts/:contactId/notes and can be created or updated with POST or PUT on the relevant paths.

Field mapping involves aligning GHL fields like id email name and tags with Synthflow AI contact fields. Use a mapping table to translate data types and ensure dates and IDs are preserved across systems.

Yes. You can automate notes and tasks by triggering actions from GHL events. When a note is added or a task is updated, create a corresponding record in Synthflow AI and keep them linked to the original contact.

No code setup is possible via prebuilt connectors and dashboards. You configure credentials map endpoints and define triggers without writing code, then test the flow within Synthflow AI.

API rate limits and error handling guidelines are documented in the GHL developer portal. Monitor quotas in your dashboard and implement retry logic and exponential backoff to handle transient errors.

New Server SALE!

Due to high volume, we will be upgrading our server soon!

Prices Go UP in:

Days
Hours
Minutes
Seconds

Monthly Access

Full Endpoint Access
$ 49
99
Monthly
  • All GHL API Endpoints
  • Premium Support
  • Continuous Updates
  • Unlimited Usage*
  • Instant Access
  • Full Private Zap Access
  • No Need to Purchase Premium Zap
  • 250+ More Endpoints than HLProTools
Popular

Annual Access

Full Endpoint Access
$ 37
49
Billed Annually
  • All GHL API Endpoints
  • Premium Support
  • Continuous Updates
  • Unlimited Usage*
  • Instant Access
  • Full Private Zap Access
  • No Need to Purchase Premium Zap
  • 250+ More Endpoints than HLProTools
Save 25%

Lifetime

Full Endpoint Access
$ 999
99
One-time Fee
  • All GHL API Endpoints
  • Premium Support
  • Continuous Updates
  • Unlimited Usage*
  • Instant Access
  • Full Private Zap Access
  • No Need to Purchase Premium Zap
  • 250+ More Endpoints than HLProTools
Best Value

🚀 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
Browse Our App Connections

Legal Services

Our Services

Business API
Business API
Calendars API
Calendars API
Contacts API
Contacts API
Conversations API
Conversations API