To use the Contacts API in Zapier App Connector, you’ll authorize an OAuth 2.0 flow that grants the app read access to contacts (scope: contacts.readonly). Keep tokens secure and rotate credentials per your security policy.
Zapier handles the authentication flow for the Connector using OAuth 2.0. After you grant access, Zapier stores a token for subsequent API calls to the GHL Contacts API.
1) GET /contacts/:contactId — Retrieve a single contact. 2) GET /contacts/:contactId/tasks — List tasks for a contact. 3) GET /contacts/:contactId/tasks/:taskId — Get a specific task. 4) GET /contacts/:contactId/notes — Retrieve notes for a contact. 5) GET /contacts/:contactId/notes/:id — Get a specific note. 6) GET /contacts/:contactId/appointments — Fetch appointments. 7) GET /contacts/ — List contacts. 8) GET /contacts/business/:businessId — Get contacts by business. 9) contacts.write — Permission scope for writing. 10) POST /contacts/ — Create a contact. 11) PUT /contacts/:contactId — Update a contact. 12) DELETE /contacts/:contactId — Delete a contact. 13) POST /contacts/:contactId/tasks — Create a task for a contact. 14) PUT /contacts/:contactId/tasks/:taskId — Update a task. 15) PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed. 16) DELETE /contacts/:contactId/tasks/:taskId — Delete a task. 17) POST /contacts/:contactId/tags — Add a tag to a contact.
Trigger: Retrieve a contact to start a workflow whenever a contact is accessed or updated by downstream systems.
Actions: Use GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes to assemble a complete contact profile.
GET /contacts/:contactId
Required: contactId; Optional: include related data via tasks/notes endpoints
Trigger: When tasks or notes change for a contact, update downstream systems.
Actions: GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes
GET /contacts/:contactId/tasks
contactId, taskId (optional) for specific items
Trigger: Auto-create tasks for a contact when events occur in your app.
Actions: POST /contacts/:contactId/tasks to create tasks; optionally update task fields with POST data.
POST /contacts/:contactId/tasks
contactId, taskName, dueDate, priority
No coding required—drag-and-drop data mapping and simple triggers/actions
Rapid automation between GHL and other apps (CRMs, marketing, support)
Visual testing and debugging to validate flows before going live
Understanding the core terms used in this guide helps you design effective, no-code automations.
OAuth 2.0 is the standard authorization framework used to grant secure access tokens without sharing user credentials.
A URL and method combination that exposes a specific operation in an API.
A person managed within your CRM; the Contacts API handles their data.
A data object exposed by an API (for example, contact, task, note).
When a contact’s core fields are updated, automatically create follow-up tasks in GHL to keep your team aligned without writing any code.
Fetch notes via GET /contacts/:contactId/notes and push summaries to Google Docs or Notion for team collaboration.
Aggregate tasks, notes, and appointments into a weekly report sent to teammates via email or Slack.
Log in to GHL, authorize the Zapier App Connector, and select the Contacts API scope (contacts.readonly).
Map contactId to the required fields, and define optional relationships to tasks, notes, or appointments.
Run a test to ensure endpoints respond as expected, then enable the connection for live automation.
No coding is required. The Zapier App Connector provides a visual interface to map data and trigger workflows. You can build multi-step automations without writing code. If you have technical staff, you can extend mappings with custom fields and conditional logic.
The typical flow uses OAuth 2.0 for secure authentication. Zapier stores tokens and refreshes them as needed. Ensure that the GHL app you install has the proper scope (contacts.readonly) to read contact data.
Commonly used endpoints include retrieving a contact, its tasks, notes, and related items. For everyday automation, GET /contacts/:contactId, GET /contacts/:contactId/tasks, and GET /contacts/:contactId/notes cover most data needs.
Use the built-in Test Connection in Zapier to verify authentication and endpoint responses. Run sample triggers and actions to confirm data appears as expected in your target app before enabling live runs.
Yes. If credentials rotate, simply re-authenticate in Zapier to refresh the access token. The connection remains intact and will resume once new tokens are issued.
Rate limits depend on your GHL plan. Plan your automations to batch requests where possible, and implement exponential backoff on retries to avoid hitting limits during peak usage.
Common patterns include pull-based updates (fetch contact data on a schedule), event-driven updates (trigger tasks or notes changes), and cross-app workflows (create tasks in response to CRM events).
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