Access to Contacts data is granted via OAuth 2.0 with the required scope (readonly). Exchange tokens securely and pass the access token to Zapier App Connector for API requests.
Store credentials securely in Zapier, rotate keys regularly, and use the GHL access token to authorize requests to the Contacts API.
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; 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: A new or updated contact is detected, then pull contact data to drive task creation.
Actions: GET /contacts/:contactId to fetch details; POST /contacts/:contactId/tasks to create onboarding task.
Methods/Paths: GET /contacts/:contactId and POST /contacts/:contactId/tasks
Key fields: contactId, taskId, dueDate
Trigger: New or updated notes for a contact are detected.
Actions: GET /contacts/:contactId/notes to retrieve notes; POST /contacts/:contactId/tasks to create a related task.
GET /contacts/:contactId/notes, POST /contacts/:contactId/tasks
Key fields: contactId, noteId, taskId
Trigger: A new appointment is scheduled for a contact.
Actions: GET /contacts/:contactId/appointments to pull the appointment; POST /contacts/:contactId/tasks to schedule a follow-up.
GET /contacts/:contactId/appointments, POST /contacts/:contactId/tasks
Key fields: contactId, appointmentId, taskId
Automate repetitive workflows without writing code.
Move data between GHL and your apps in minutes using triggers and actions.
Scale integrations as your business grows with a centralized no-code automation layer.
This glossary covers endpoints, authentication, triggers, actions, and data fields used in the Contacts API and Zapier App Connector integration.
A specific URL and HTTP method used to interact with GHL data.
The process of verifying identity and authorizing access to the API (OAuth 2.0, tokens).
An event in GHL that starts an automation or workflow in your app.
An operation performed by your app in response to a trigger (create task, update contact, etc.).
Set up a trigger on new contacts to automatically create onboarding tasks in your project management tool.
Aggregate interactions (notes, tasks, calls) into a digest sent to a team channel.
Push appointment data from GHL into Google Calendar or Outlook.
Create a private app in GHL and obtain client credentials (ID and secret).
Enter your GHL credentials in Zapier, set scopes, and map fields.
Run tests, verify data flows, and enable automation for your team.
No coding is required to connect Zapier App Connector to the Contacts API. The platform provides triggers and actions that map to GHL endpoints, enabling you to automate tasks. You can configure workflows visually and deploy them quickly without writing code. However, some basic setup helps: create a private app in GHL, configure OAuth credentials, and map fields in Zapier to ensure smooth data flow.
With the Contacts API you can access core data such as contacts, tasks, notes, and appointments. The scope shown (readonly) limits you to reading data, preventing modifications unless you request additional permissions. You can also access related business data via the businessId endpoint. Use read operations to populate dashboards, trigger automations, or generate reports without changing any records.
Authentication should be handled with OAuth 2.0 and token management. Never expose client secrets in client-side code, and store tokens securely in Zapier connections. Regularly rotate credentials and follow least-privilege practices by requesting only the scopes you need. In Zapier, use built-in authentication flows to manage tokens and refresh logic, keeping user data secure.
Most endpoints have rate limits that depend on your GHL plan and application permissions. Plan calls, implement retries with backoff, and cache non-changing data when possible. If you hit limits, stagger requests and optimize polling schedules. Consider batching read requests where supported and using webhooks for real-time updates to reduce polling load.
The example scope shown is readonly, which means you cannot update contacts with the current setup. To modify data, you would need a write-enabled scope and appropriate permissions from GHL. If your use case requires updates, configure a separate OAuth scope, obtain approval, and map write endpoints (POST, PUT, DELETE) in Zapier accordingly. Always test changes in a safe environment before going live.
Webhooks in this integration allow event-driven automation. When a contact is created or updated, a webhook can trigger a Zap to perform actions automatically. You can configure which events to listen for and route them into your Zapier workflows. Additionally, you can poll endpoints for updates if webhooks are not available for a particular data type, ensuring you stay current with changes in GHL data.
API documentation for the Contacts API and the Zapier App Connector is available in the GHL developer portal and the Zapier Platform docs. Review endpoint details, authentication requirements, and example payloads to design effective automations. If you ever need examples, search for common use cases like reading contacts, fetching tasks, and creating follow-up items to model your workflows.
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Complete Operations Catalog - 126 Actions & Triggers
