The Contacts API uses OAuth 2.0 for secure access. Start by creating an OAuth client in GHL, then authorize the Zapier App Connector to access your data.
Zapier securely stores and refreshes credentials for you. Connect your GHL account in the Zapier app, then select which data to sync.
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 contacts.write 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
Trigger: New or updated contact in Zapier triggers a corresponding create/update in GHL’s Contacts API.
Actions: Use POST /contacts/ to create a contact, or PUT /contacts/:contactId to update; map fields such as name, email, and phone.
POST /contacts/ (create) or PUT /contacts/:contactId (update)
email, contactId, name
Trigger: Update in Zapier triggers an update in GHL.
Actions: PUT /contacts/:contactId to update fields; map required fields and handle deduplication.
PUT /contacts/:contactId
contactId, email
Trigger: A new task or note is created in GHL or via Zapier.
Actions: POST /contacts/:contactId/tasks to create a task; POST /contacts/:contactId/notes to add a note.
POST /contacts/:contactId/tasks
contactId, taskId, noteId
Automate repetitive workflows without writing code.
Keep contact data synchronized with Excel workbooks and other apps via Zapier.
Create scalable automation that grows with your business.
Key concepts include API endpoints, authentication, triggers, actions, and data mapping.
A cohesive set of rules and endpoints that allow apps to communicate programmatically.
An authorization framework enabling secure delegated access to resources.
A specific URL path in an API used to perform a function or retrieve data.
A cap on API calls within a time window to protect the service.
When a new contact is added in GHL, automatically populate a row in Excel via Zapier.
Create tasks in GHL from items in an Excel sheet or trigger new tasks in GHL from Excel updates.
Sync notes from GHL into an Excel log for reporting and audits.
Obtain OAuth credentials from GHL and authorize the Zapier App Connector.
Choose a trigger like ‘New or Updated Contact’ and map fields to your workbook.
Run tests to verify data flow and then deploy your Zap.
The Contacts API supports OAuth 2.0 access tokens. You will authenticate via GHL’s OAuth flow from the Zapier app. Once authenticated, your app will receive a token to authorize requests to endpoints such as GET /contacts/:contactId and POST /contacts/. Tokens expire and refresh automatically, keeping access seamless. To maintain security, never share tokens and ensure your Zapier connector is configured to refresh tokens in the background.
The available endpoints include retrieving a contact, listing tasks, notes, and appointments, as well as creating, updating, and deleting core resources. You can chain these endpoints in Zaps to build multi-step workflows that reflect real-world CRM processes. Always pay attention to required path parameters (like contactId) and the correct data mapping for fields such as name, email, and task details.
Zapier securely stores credentials through the connector, and the OAuth flow is handled as part of the setup. Your credentials are refreshed automatically as needed. If you encounter token expiration, the connector will prompt a re-auth flow to re-establish access without manual intervention.
Yes, the GHL API enforces rate limits to protect the service from abuse. If you exceed the limit, you may receive 429 responses and should implement exponential backoff in your Zapier automation. Design your Zaps to batch updates when possible and stagger frequent calls to avoid hitting limits.
Yes, you can create (POST), update (PUT), and delete (DELETE) contacts from Zapier using the appropriate endpoints. Use deduplication strategies (e.g., email-based matching) to prevent duplicate records. Map fields carefully to ensure data integrity across GHL and any connected apps like Excel.
Yes. You can manage tasks via POST /contacts/:contactId/tasks and update via PUT, along with creating notes via POST /contacts/:contactId/notes. These actions can be triggered from Zapier to keep a contact’s workflow synchronized. Ensure you map related fields (due date, status, content) so tasks and notes reflect accurately in GHL and downstream apps.
Endpoint documentation and examples can be found in the developer section of your GHL account, or within the API docs provided by GHL. Look for endpoint references, required parameters, and sample requests to accelerate integration. If you need additional examples, consult the Zapier app connector documentation for typical authentication and mapping patterns.
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