Use a secure API key or OAuth token to access the Contacts API. Include the Authorization header with a Bearer token in each request. Scope: contacts.readonly for read actions; use full scope for write actions.
In Zapier, create a connection to the Contacts API using OAuth 2.0 or API Key. Store credentials securely and refresh tokens as needed. Use this connection to trigger and action steps in your Zap.
GET /contacts/:contactId — Retrieve a single contact by ID. GET /contacts/:contactId/tasks — Retrieve tasks for a contact. GET /contacts/:contactId/tasks/:taskId — Retrieve a specific task. GET /contacts/:contactId/notes — Retrieve notes for a contact. GET /contacts/:contactId/notes/:id — Retrieve a specific note. GET /contacts/:contactId/appointments — Retrieve appointment data. GET /contacts/ — List contacts. GET /contacts/business/:businessId — List contacts by business. contacts.write — Write access for contacts. PUT /contacts/:contactId — Update a contact. DELETE /contacts/:contactId — Delete a contact. POST /contacts/:contactId/tasks — Create a task for a contact. PUT /contacts/:contactId/tasks/:taskId — Update a task. PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed. DELETE /contacts/:contactId/tasks/:taskId — Delete a task. POST /contacts/:contactId/tags — Add tags to a contact.
Trigger: on-demand pull of a contact to start a workflow in Zapier
Actions: GET /contacts/:contactId to fetch core data; GET /contacts/:contactId/tasks to fetch related tasks
GET /contacts/:contactId
Key fields: contactId, name, email, phone
Trigger: new or updated notes for a contact
Actions: GET /contacts/:contactId/notes; GET /contacts/business/:businessId
GET /contacts/:contactId/notes
Notes fields: id, content, date, author
Trigger: new task created for a contact
Actions: POST /contacts/:contactId/tasks; PUT /contacts/:contactId/tasks/:taskId/completed
POST /contacts/:contactId/tasks
Task fields: taskId, title, dueDate, status
Automate contact data flows without writing code, saving time and reducing errors.
Keep data synchronized across GHL and Zapier in real time to power your InvGate Service Desk automation.
Easily scale workflows as your business grows with plug-and-play endpoints.
Key elements include API endpoints, authentication steps, triggers, actions, and data fields used to connect GHL Contacts API with Zapier App Connector for InvGate Service Desk.
Application Programming Interface: a set of rules that allows software to communicate.
A specific URL and HTTP method that exposes a function of the API.
Methods used to verify identity and grant access to API resources (e.g., API keys, OAuth tokens).
An HTTP callback that notifies your app when an event occurs in another system.
Whenever a ticket is opened, create or update the related contact in GHL via GET/POST /contacts and associate with the ticket in Zapier.
Push task updates to contact notes to keep a complete activity history in GHL.
Tag contacts automatically based on task changes and route to the right team in InvGate.
Create a connection in Zapier to the Contacts API using OAuth2 or API Key, then authorize the app.
Select triggers like pull contact data or note updates and map fields to Zapier actions such as create or update records.
Run tests in Zapier and deploy your workflow to automate InvGate Service Desk processes.
No-code options are a core benefit of this setup. Zapier triggers and actions can be configured without custom coding. If you run into limitations, you can always layer in small scripts or webhooks for advanced transformations.
Supported methods include API Keys and OAuth 2.0. Choose the method that matches your security requirements and API permissions.
Key endpoints include retrieving a contact, its notes, and its tasks (GET /contacts/:contactId, GET /contacts/:contactId/notes, GET /contacts/:contactId/tasks). These endpoints enable common automation patterns.
Use the connection test in Zapier, then inspect request/response payloads and logs to identify where any mismatch occurs. Check authentication, endpoint paths, and required scopes.
Yes. Map fields like name, email, phone, and custom fields from GHL to corresponding Zapier fields to ensure data integrity across tools.
Rate limits depend on the GHL plan. If you hit a limit, implement exponential backoff and retry logic in your Zap.
Endpoint documentation is available in the GHL API reference and within your Zapier app connector setup.
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Complete Operations Catalog - 126 Actions & Triggers
