The Contacts API uses token-based authentication. Use an API key or OAuth token with your read-only scope (contacts.readonly) to authorize requests. Keep tokens secure and rotate them regularly.
Zapier App Connector authenticates to GHL via OAuth 2.0 and stores tokens securely. If you encounter expired tokens, re-authenticate from your app settings.
– GET /contacts/:contactId — Retrieve a single contact; – GET /contacts/:contactId/tasks — Get tasks for a contact; – GET /contacts/:contactId/tasks/:taskId — Get a specific task; – GET /contacts/:contactId/notes — List notes for a contact; – GET /contacts/:contactId/notes/:id — Get a specific note; – GET /contacts/:contactId/appointments — Get appointments for a contact; – GET /contacts/ — List all contacts; – GET /contacts/business/:businessId — List contacts for a business; – contacts.write — Write permission for contacts; – POST /contacts/ — Create a contact; – PUT /contacts/:contactId — Update a contact; – DELETE /contacts/:contactId — Delete a contact; – POST /contacts/:contactId/tasks — Create a task for a contact; – PUT /contacts/:contactId/tasks/:taskId — Update a task; – PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task completed; – DELETE /contacts/:contactId/tasks/:taskId — Delete a task; – POST /contacts/:contactId/tags — Add tags to a contact
Trigger: Use your API key in the Authorization header to access read-only endpoints.
Actions: Retrieve contact data, list tasks, and pull notes.
GET /contacts/:contactId
Key fields: contactId, apiKey, scope
Trigger: OAuth tokens are refreshed in the background; ensure consent scopes include contacts.readonly.
Actions: Retrieve contacts, list tasks, update notes, etc.
GET /contacts/
Key fields: access_token, refresh_token, scope
Trigger: Webhook events from GHL push updates to Zapier.
Actions: Create/update contacts when events fire; sync across apps.
POST /contacts/:contactId/tasks
Key fields: contactId, eventType, payload
Automate CRM workflows without writing code by syncing Contacts data to your apps.
Centralized security with OAuth tokens and scoped access.
Event-driven automations and webhooks to keep data current.
This section defines core elements: endpoints, authentication methods, request/response formats, and common data fields used across the Visitors Queue integration.
API stands for Application Programming Interface, a set of rules that lets software applications communicate.
OAuth 2.0 is an authorization framework that enables secure access tokens for API calls.
Webhook is a user-defined HTTP callback triggered by events in a service to notify another app.
JSON is a lightweight data-interchange format used by most APIs to structure response data.
Create a Zap to archive inactive contacts and tag them for follow-up tasks.
Automatically generate tasks when a contact attribute changes.
Push notes to Notion or Google Docs when notes are added.
Start OAuth flow, grant scopes for contacts.readonly.
Choose endpoints to expose and map data fields.
Test integration, validate data flows, then deploy automation.
You can connect without writing code using Zapier App Connector; map fields from the Contacts API to your destination apps. If you need deeper customization, refer to the API docs for advanced queries. This page covers the basics to get you started quickly.
Read-only scope allows you to fetch contacts, tasks, notes, and appointments. If you need to create or modify data, request additional scopes such as contacts.write. Always limit scopes to the minimum required for your workflow.
In Zapier App Connector, start by selecting OAuth 2.0 as the auth method, then authorize against the GHL API. After authorization, tokens are stored securely and refreshed automatically as needed. You can test connections from the app’s settings page.
With read-only scope you cannot write data to the Contacts API. To create or update records, you must obtain a write-capable scope or use endpoints that support write operations after proper authorization.
Yes, webhooks can notify Zapier about certain events. You will configure the webhook URL in Zapier and subscribe to relevant events in GHL to trigger automations.
Tokens expire periodically. Zapier App Connector handles token refresh automatically. If a refresh fails, re-authenticate in the app settings to renew your credentials.
Endpoint examples are shown in the Endpoint List section. You can also refer to the GHL API docs for comprehensive request/response schemas and field descriptions.
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