How to connect ServiceTrade to the Contacts API (GHL)

GHL Contacts API + ServiceTrade: Seamless data sync and automation

How to link the Contacts API with ServiceTrade

This guide walks you through authentication, endpoint usage, and best practices to keep your ServiceTrade contacts in sync via the GHL API.

Authentication for the Contacts API (GHL)

Authenticate with OAuth 2.0 and the contacts.readonly scope to securely access contacts data from GHL.

App authentication for ServiceTrade

Configure OAuth credentials in ServiceTrade, obtain tokens, and keep them refreshed to maintain seamless access.

GHL Contacts API Endpoints Used with ServiceTrade

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, 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 connection patterns between Contacts API and ServiceTrade

1) Contact Upsert on Create or Update

Trigger: when a contact is created or updated in ServiceTrade, push upsert to GHL to keep records aligned.

Actions: upsert contact in GHL, synchronize associated tasks and notes, create links to the contact in ServiceTrade.

Method Path: POST /contacts/ and PUT /contacts/:contactId for upserts

Key fields: contactId, email, name

Top 3 connection patterns between Contacts API and ServiceTrade

2) Tasks and Notes Synchronization

Trigger: updates to a contact’s tasks or notes in GHL trigger updates in ServiceTrade

Actions: fetch /contacts/:contactId/tasks and /contacts/:contactId/notes, replicate to ServiceTrade as tasks or notes

Method Path: GET /contacts/:contactId/tasks and GET /contacts/:contactId/notes

Key fields: contactId, taskId, noteId

Top 3 connection patterns between Contacts API and ServiceTrade

3) Appointments Bi-directional Sync

Trigger: appointment changes in GHL are reflected in ServiceTrade and vice versa

Actions: sync appointment data via GET/POST to /contacts/:contactId/appointments and update statuses

Method Path: GET /contacts/:contactId/appointments, POST /contacts/:contactId/appointments

Key fields: contactId, appointmentId

No-code benefits of connecting Contacts API with ServiceTrade

Eliminate manual data entry with automatic contact sync between GHL and ServiceTrade

Automate task and note creation for follow-ups, reducing oversight

Real-time updates prevent data drift and keep your teams aligned

Key Terms and Glossary

This glossary defines essential terms like API, endpoint, trigger, action, and upsert to help you implement and maintain the integration.

API

Application Programming Interface — a set of rules that lets apps communicate and share data securely.

OAuth 2.0

OAuth 2.0 is the industry-standard protocol for authorizing access to APIs without sharing passwords.

Endpoint

A specific URL in an API that performs a defined action or returns data.

Upsert

An operation that creates a record if it does not exist or updates it if it does.

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Creative ideas for leveraging the GHL Contacts API with ServiceTrade

Auto-create ServiceTrade tasks from GHL notes

When notes are added in GHL, automatically generate corresponding tasks in ServiceTrade to keep follow-ups organized.

Segment synchronization by contact

Sync contact segments from GHL into ServiceTrade to personalize workflows.

Appointment reminders in ServiceTrade from GHL events

Trigger reminders in ServiceTrade when a GHL appointment or task is updated.

Three simple steps to connect

Step 1: Prepare credentials

Create or configure OAuth credentials in GHL and ServiceTrade, ensuring the proper scopes are granted.

Step 2: Configure endpoints and mapping

Map GHL endpoints to ServiceTrade fields (contacts, tasks, notes, appointments) for seamless syncing.

Step 3: Test, monitor, and deploy

Run tests, set up logging, and deploy the integration with notifications for failures.

Frequently Asked Questions

What data can I sync between GHL and ServiceTrade?

You can sync contacts, tasks, notes, and appointments between GHL and ServiceTrade. Map fields to ensure data integrity and automate routine workflows. This reduces manual data entry and speeds up response times.
Use webhooks or polling to trigger updates and monitor sync status through logs and dashboards.

No heavy coding required. Many teams use built-in connectors or Zapier-style automation. For more complex needs, you can leverage the API with the provided endpoints to customize flows.

Connections use OAuth 2.0 tokens over HTTPS, with scoped access. Store tokens securely and rotate them on a schedule to minimize risk.

Yes, endpoints can be selectively enabled. Start with core endpoints for contacts and tasks, then add notes and appointments as needed.

Tokens expire; refresh tokens automatically if using OAuth. Store token expiry and refresh proactively to avoid downtime.

If a conflict occurs, implement a timestamp-based upsert policy and queue changes for manual review. Alerts and logs help resolve issues quickly.

Refer to the Endpoint Reference section above for a complete list of API routes and usage guidelines. Documentation links and examples are provided.

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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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