How to Connect Trengo to Contacts API

Integrate the Contacts API with Trengo for seamless contact management

Step by step guide to connecting GHL Contacts API with Trengo

This guide explains how to link the GHL Contacts API to the Trengo app. You will authenticate with an API token that has the contacts.readonly scope, then use the listed endpoints to fetch contact data, tasks, notes, and more to power Trengo workflows.

Authentication for the Contacts API

Requests to the Contacts API must be authenticated with your GHL API token. Include the token in the Authorization header as Bearer . The token should have the scopes needed for the actions you perform, such as readonly access to contacts.

Authentication in Trengo

In Trengo, configure the GHL integration with the token you generated. The app will pass the token automatically to GHL when calling endpoints. Ensure you rotate tokens securely and restrict endpoints to the required scope.

GHL Contacts API Endpoints Used

The connection uses the following 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, 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

Best 3 Connections between Contacts API and Trengo

Get Contact Details

Trigger: When a contact is opened in Trengo or when a contact needs to be displayed in a ticket.

Actions: Retrieve core contact fields (name, email, phone) and map them into Trengo contact data.

GET /contacts/:contactId

contactId, name, email, phone

Best 3 Connections between Contacts API and Trengo

Get Contact Tasks

Trigger: When a contact’s tasks are needed for a support workflow.

Actions: Fetch tasks for a contact, including title, due date, and status, and push to Trengo tasks panel.

GET /contacts/:contactId/tasks

contactId, taskId, title, dueDate, status

Best 3 Connections between Contacts API and Trengo

Create or Update Contact Task

Trigger: When a task is created or updated in Trengo for a contact.

Actions: Create or update tasks on the GHL side using POST or PUT on the contacts/:contactId/tasks endpoint.

POST /contacts/:contactId/tasks

contactId, taskId, title, status

No Code Benefits for GHL Contacts API and Trengo

Fast setup that requires no custom code to start routing contacts and tasks between GHL and Trengo

Visual mapping of fields and ready to use triggers for common support workflows

Scalable automation with secure token based authentication

Key Terms and Glossary

A glossary of API concepts used in this guide such as endpoints, tokens, scopes, and data mapping

API Endpoint

A specific URL path to access a resource in the API

Authentication Token

A secret value used to authorize API requests on behalf of a user or app

Scopes

Permissions granted to an app to access certain data within GHL

Webhook

A URL that receives real time notifications from an API when relevant events occur

People also Search for:

3 Creative Ideas for Connecting GHL Contacts API with Trengo

Automate new contact onboarding in Trengo

When a new contact is created in GHL, pull basic details into Trengo and open a welcome ticket

Sync tasks and notes to support workflows

Fetch contact tasks and notes and reflect them in Trengo tickets for better context

Bidirectional updates between systems

Propagate changes from Trengo back to GHL when actions are taken in Trengo

3 Steps to Connect GHL Contacts API with Trengo

Step 1 - Create and authorize in GHL

Generate an API token with contacts.readonly scope and note the token securely

Step 2 - Configure Trengo integration

Add a new GHL integration in Trengo and paste the token, then select the endpoints you will use

Step 3 - Map fields and test

Map GHL contact fields to Trengo fields and run end to end tests to confirm data flow

Frequently Asked Questions

Do I need to code to set up this integration

No coding is required for the basic integration. Trengo provides a no code experience to configure triggers and actions between GHL and Trengo. If your workflows are more complex, you can add custom logic with webhooks or middleware while keeping the connection secure. The UI guides you through mapping fields and choosing endpoints. The goal is a fast, reliable data flow without writing code. The second paragraph emphasizes best practices and fallback options in case of API limits or token issues.

For basic syncing you will use the core contact endpoints such as GET /contacts/:contactId and GET /contacts/:contactId/tasks. These endpoints fetch the essential data needed to populate Trengo tickets and tasks. You can extend with notes and tags as you grow. The second paragraph covers optional endpoints for richer context like notes and business associations.

Security is token based. Use a token with only the required scopes and rotate it periodically. Transport uses HTTPS and OAuth style flow where applicable. The second paragraph reminds you to restrict permissions to the minimal needed and store tokens securely.

Yes, you can map custom fields from GHL to custom fields in Trengo. Start by exposing the fields in the GHL token scope and then align them in Trengo field mappings. The second paragraph explains testing and validating that custom fields transfer correctly in both directions.

Errors are surfaced in the Trengo integration UI and via API responses. Use the error codes to determine retries, rate limits, or invalid data. The second paragraph covers logging and error notifications to help you diagnose issues quickly.

Tokens should be rotated securely on a schedule and after suspected exposure. Use the GHL portal to generate new tokens and update the Trengo integration. The second paragraph highlights best practices for token lifecycle management and automation hooks.

Logs are available in both GHL and Trengo dashboards and can be exported for audits. Look for API request logs, response codes, and payloads. The second paragraph suggests enabling verbose logging during initial setup and then dialing it back to normal levels once stable.

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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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