Authenticate securely using OAuth 2.0 with the scope set to read-only or as required (e.g., contacts.readonly) to access contact data from Zapier.
During setup, connect the Zapier App Connector to your GHL Contacts API account; Zapier stores tokens securely and uses them for API requests.
List of available endpoints you can use with Zapier:\nGET /contacts/:contactId\nGET /contacts/:contactId/tasks\nGET /contacts/:contactId/tasks/:taskId\nGET /contacts/:contactId/notes\nGET /contacts/:contactId/notes/:id\nGET /contacts/:contactId/appointments\nGET /contacts/\nGET /contacts/business/:businessId\ncontacts.write\nPOST /contacts/\nPUT /contacts/:contactId\nDELETE /contacts/:contactId\nPOST /contacts/:contactId/tasks\nPUT /contacts/:contactId/tasks/:taskId\nPUT /contacts/:contactId/tasks/:taskId/completed\nDELETE /contacts/:contactId/tasks/:taskId\nPOST /contacts/:contactId/tags
Trigger: when a contact is updated or a new task is created in the Contacts API.
Actions: create notes, update tasks, or add tags in response to triggers.
Example endpoint usage: GET /contacts/:contactId to pull latest data; POST /contacts/ to add a new contact.
Key fields: contactId, email, name, status, lastModified.
Trigger: new lead created in your source app.
Actions: POST /contacts/ to create the contact, assign business and tags.
Path example: POST /contacts/ to create a new contact.
Key fields: contactId, email, name, businessId.
Trigger: contact data updated in GHL by support system.
Actions: PUT /contacts/:contactId to update details; add notes or tasks.
Path: PUT /contacts/:contactId
Key fields: contactId, lastModified, status.
No-code automation lets you connect the Contacts API to the Zapier App Connector with clicks instead of code.
Rapid workflow creation with ready-made triggers and actions.
Centralized data flow across tools without writing any code.
Key elements and processes include endpoints, triggers, actions, authentication, and data fields used to connect the Contacts API with Zapier.
A URL path that performs a specific operation against data (e.g., GET /contacts/:contactId).
An event in one system that starts an automated workflow in another system.
An operation performed in response to a trigger, such as creating or updating a record.
The process of verifying identity and permissions before allowing API access.
Trigger when a new contact is created and fetch enrichment data from a 3rd-party service, then update the contact in GHL.
Route tasks to the right team by creating tasks based on contact fields and source apps.
When a ticket is updated in your support tool, push updates to the corresponding contact in GHL.
In Zapier, pick the Contacts API as the trigger and configure the event.
Connect your GHL account and run a test to ensure permissions are correct.
Add actions like create or update contacts, notes, or tasks to complete the automation.
The Contacts API exposes endpoints such as GET /contacts/:contactId, GET /contacts, and POST /contacts to create or modify data. Use these endpoints via Zapier triggers and actions to automate workflows. Ensure you have the correct OAuth scope and that the connection is authenticated. Tip: Start with GET /contacts to verify access and then drill into individual contacts with GET /contacts/:contactId.
Supported authentication includes OAuth 2.0 with access tokens. Zapier handles the authorization flow for you; you’ll authorize the app during setup. For most integrations, the scope is limited to read-only unless you need write access. If your workflow requires write permissions, request the appropriate scope and ensure your app review covers these permissions.
Yes. You can update contacts with PUT /contacts/:contactId and delete with DELETE /contacts/:contactId. Use Zapier’s action steps to perform these requests safely. Always test in a sandbox or staging environment before applying changes to production data.
To test, create a test Zap in Zapier, run test steps, and examine returned data. The app’s test mode uses sandbox tokens where available. Verify that the fields you expect are populated in the response and adjust field mappings if needed.
Rate limits vary by plan; monitor your requests and implement exponential backoff. If you hit limits, stagger requests or upgrade plan. Consider batching operations where possible and using idempotent actions to avoid duplicates.
Map fields by aligning GHL contact fields (name, email, phone) with Zapier data fields in the Action step. Use built-in formatter tools if necessary. Create clear field mappings for each trigger and action to ensure data integrity across apps.
The endpoint list and glossary are included in this guide and can be referenced via the docs section at the bottom of the page. You can also bookmark the endpoint list for quick access during automation building.
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