GHL uses OAuth 2.0 to grant access. Obtain an access token with the client credentials flow and scope set to contacts.readonly.
Zapier securely stores and rotates credentials. Connect the GHL app by selecting OAuth 2.0 and authorizing the app to access your GHL Contacts data.
Key endpoints include: GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, POST /contacts/, PUT /contacts/:contactId, DELETE /contacts/:contactId, GET /contacts/, GET /contacts/business/:businessId, POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId, PUT /contacts/:contactId/tasks/:taskId/completed, DELETE /contacts/:contactId/tasks/:taskId, GET /contacts/:contactId/appointments, GET /contacts/:contactId/notes/:id, GET /contacts/:contactId/notes, and GET /contacts/:contactId.
Trigger: A new lead in your source app creates or updates a contact in GHL via Zapier.
Actions: create or update a contact, then auto-create tasks, notes, or tags based on the lead data.
Method path: POST /contacts/ for create, PUT /contacts/:contactId for update.
Key fields: email, first_name, last_name, phone.
Trigger: When a note or task is created or updated, reflect changes in GHL.
Actions: create or update notes and tasks on the corresponding contact in GHL.
Method path: POST /contacts/:contactId/tasks, POST /contacts/:contactId/notes.
Key fields: contactId, note content, task title, due date.
Trigger: A campaign event triggers bulk updates to GHL contacts.
Actions: bulk update contact tags, statuses, and notes across multiple records.
Method path: POST /contacts/batch or PATCH /contacts/batch.
Key fields: contactId list, tags, status.
No-code automations to sync contacts and tasks without writing code.
Drag-and-drop workflows to manage notes, appointments, and tags.
Rapid onboarding with ready-made templates and triggers.
This glossary explains essential terms and how they fit into your integration workflow between GHL and Zapier.
An API endpoint is a URL you call to perform a specific action, such as retrieving a contact or creating a task.
OAuth 2.0 is an authorization framework that lets apps obtain limited access to user data.
A contact is a person record in GHL containing basic details like name, email, and phone.
A task is a to-do item linked to a contact that can have a due date and status.
Route high-quality leads to VIP lists and automatically update tags in GHL via Zapier.
Create calendar events in GHL when a task is completed in another app.
Enrich contacts with data from external sources in bulk.
Log in to Zapier and authorize the GHL App Connector to access your Contacts data.
Select a trigger such as New Contact or Contact Updated and map fields.
Configure actions like Create Contact, Add Note, or Create Task and test the workflow.
The GHL Contacts API exposes endpoints to retrieve contacts, notes, tasks, appointments, and business-linked data. You can fetch individual records or lists to drive automation in Zapier. Start with GET endpoints to read data and then use POST, PUT, or DELETE where supported to manage records. Example: GET /contacts/:contactId to fetch a contact; POST /contacts/ to create a new contact.
Authenticate using OAuth 2.0. In Zapier, configure OAuth for the GHL App Connector, authorize access to your GHL account, and select the scopes you need (e.g., contacts.readonly). Token refresh is managed by Zapier so your automations stay connected.
Yes. Read-only endpoints are available with the contacts.readonly scope. Write operations like creating contacts or updating tasks require broader scopes and proper user consent. Always test changes in a sandbox or staging environment.
With the readonly scope you can fetch contact data, lists, notes, and activity information. Sensitive actions (create/update/delete) require higher privilege scopes and user authorization.
Batch endpoints exist for bulk actions. Use them carefully and consider rate limits. When performing bulk updates, ensure you handle partial failures and retries in your Zapier workflows.
Implement exponential backoff and retry logic. Check API responses for error codes, and design your Zapier zaps to pause and retry on 429 or 5xx responses.
Look for official API sample payloads in the GHL API documentation or in the Zapier App Connector guides. The examples illustrate typical request and response shapes for common actions.
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