Authenticate using OAuth 2.0 with the Contacts API scope (contacts.readonly). Obtain client credentials in your GHL developer settings and authorize the Zapier app to access your data.
In AI by Zapier, connect the AI app to your GHL account via OAuth 2.0. Grant the requested scopes and select the account to establish a secure link for triggers and actions.
Endpoints include: 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 (permission), 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 in GHL.
Actions: retrieve contact details, update fields in Zapier, or create tasks.
GET /contacts/:contactId
Key fields: contactId, name, email, phone, tags, owner
Trigger: new or updated tasks for a contact.
Actions: create or update tasks, mark completed.
GET /contacts/:contactId/tasks
Key fields: taskId, title, status, dueDate, contactId
Trigger: notes or appointments added for a contact.
Actions: create notes, schedule appointments, or fetch details.
GET /contacts/:contactId/notes
Key fields: noteId, note, date, contactId
Automates data flow between GHL and your apps without writing code.
Enables real‑time updates via triggers and actions.
Centralizes CRM data for reporting and workflows.
This section explains core terms: API, endpoints, authentication, triggers, and actions used when connecting GHL Contacts API with AI by Zapier.
Application Programming Interface: a set of rules that lets apps talk to each other.
A specific URL in an API that performs a function. Each endpoint maps to a data operation.
The process of verifying access rights, typically via OAuth 2.0 or API keys.
A URL that a service calls to deliver real-time data to another app.
Use endpoints to fetch new contact data and auto-create records or tasks as part of a welcome workflow.
Trigger reminders and tasks based on note content or activity history.
Aggregate notes and appointments into a single view for teams.
In Zapier, choose AI by Zapier as the app, and authorize the GHL Contacts API connection.
Select events like contact created or task updated to start your automation.
Run tests, map data fields between systems, and turn on the Zap.
The Contacts API in GHL exposes a set of endpoints you can call from AI by Zapier to manage contact data. You can read contact details, fetch tasks, notes, and appointments, and create or update records as needed. This API enables seamless automation between GHL and your workflows.
No traditional coding is required. Zapier provides triggers, actions, and built-in mapping to connect the endpoints. You can configure steps in a visual editor to move data between GHL and apps.
Supported endpoints include getting contact data, tasks, notes, and appointments, as well as creating and updating contacts and tasks. The list may expand as GHL updates its API.
Authentication uses OAuth 2.0 with scoped access. You’ll authorize the Zapier AI app to access the Contacts API under the specified scope.
Yes. You can read notes and appointments, and write new notes or create tasks through the supported endpoints. Map fields to ensure correct data placement.
Rate limits vary by endpoint. If you hit limits, implement retries with exponential backoff in Zapier and consult the GHL API docs.
You can find endpoint lists and examples in the official API docs and this page’s endpoint section.
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