Use a standard OAuth 2.0 flow or API key-based authentication to access the Contacts API. Ensure you request the proper scope (contacts.readonly) if you only need read access, and switch to write scopes (contacts.write) when creating or updating data.
In Zapier, configure OAuth credentials or API keys to securely authorize the Zapier App Connector to call the GHL Contacts API. Follow the app setup to exchange tokens and refresh as needed.
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 Permissions: 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 when a contact is created or updated, pull the latest contact data, and sync related tasks and notes.
Actions: GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes
GET /contacts/:contactId
contactId, name, email, phone, lastModified
Trigger when a task is created or updated for a contact, enabling downstream automations.
Actions: POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId, PUT /contacts/:contactId/tasks/:taskId/completed
POST /contacts/:contactId/tasks
taskId, title, dueDate, status, contactId
Trigger when a note is added or updated for a contact.
Actions: GET /contacts/:contactId/notes, POST /contacts/:contactId/notes
GET /contacts/:contactId/notes
id, note, createdAt, contactId
Automations: Build end-to-end workflows between GHL and other apps without writing code.
Real-time data: Triggers fire as data changes, keeping your workflows in sync instantly.
Scalability: Connect multiple endpoints to grow your integrations without custom development.
This glossary defines endpoints, triggers, actions, and data models used to integrate the GHL Contacts API with the Zapier App Connector.
A URL path that performs a specific operation on the GHL Contacts API, such as retrieving a contact.
An authorization framework that issues access tokens for API calls.
A person stored in GHL with associated data like name, email, and phone.
A callback URL that receives real-time notifications when data changes.
Capture form fields and post to POST /contacts/ to create a contact in GHL, then trigger downstream workflows in other apps.
When a task is created in GHL, push data to Asana or Trello via the appropriate endpoints and keep projects updated.
Use notes endpoints to trigger alerts in chat apps or email when important notes are added.
Create an app in the GHL developer console, obtain client credentials, and request the appropriate scopes (contacts.readonly for read access).
Add triggers for GET endpoints and actions for POST/PUT endpoints to enable end-to-end flows.
Run tests, validate data mappings, and deploy to production with logging.
The GHL API requires the contacts.readonly scope for reading contact data. If you need to fetch related resources (tasks, notes), you will request additional scopes as needed. To authorize, complete the OAuth flow or supply an API key, then exchange tokens for secure access. Always protect tokens and rotate them regularly as part of your security hygiene.
OAuth 2.0 is the recommended method for secure access to the GHL API. You’ll configure OAuth in the GHL developer console and in Zapier, then exchange authorization codes for access tokens. API keys are an alternative, but should be stored securely and scoped to the minimum required permissions.
Read-only endpoints include retrieving contacts, their tasks, and notes (GET requests). Write endpoints (POST, PUT, DELETE) require appropriate write scopes (contacts.write) and proper authorization. Use read endpoints to populate dashboards and triggers, and reserve write endpoints for create/update flows.
To update a contact or its tasks via Zapier, configure actions that call PUT or POST endpoints (e.g., PUT /contacts/:contactId, POST /contacts/:contactId/tasks). Map fields from your Zapier trigger to the API payload, and test updates in a staging environment before going live.
“Webhooks are supported for real-time updates. Configure a webhook in GHL to notify Zapier of changes to contacts, tasks, or notes, then build corresponding triggers in Zapier to react to those events. Ensure your webhook URL is secure and publicly reachable from GHL.”
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Complete Operations Catalog - 126 Actions & Triggers
