Learn how to securely obtain and use your API credentials to access the Contacts API via Zapier App Connector, including how to rotate keys and protect sensitive data.
Set up OAuth 2.0 or API key authentication for the App Connector so it can call the Contacts API safely and reliably.
Accessible 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, as well as create, update, and delete operations such as 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, and POST /contacts/:contactId/tags.
Trigger: when a contact is updated or accessed in your CRM to pull latest data into Zapier.
Actions: retrieve contact details, associated tasks, notes, and upcoming appointments to assemble a complete contact profile.
GET /contacts/:contactId
Key fields: id, name, email, phone, company
Trigger: new or updated contact in the source system to keep records in sync.
Actions: create or update a contact record, map fields, and verify duplicates.
POST /contacts/
Fields: firstName, lastName, email, phone, leadSource
Trigger: changes in a contact’s task list to update task status in automations.
Actions: list tasks, open, close, and update task completion for a contact.
GET /contacts/:contactId/tasks
Fields: taskId, title, dueDate, status, completed
Automate data syncing between GHL and your apps without writing a line of code.
Create repeatable workflows that trigger on contact changes and update downstream systems in real time.
Scale outreach and customer lifecycle programs with templated automations and error handling.
Core elements and processes you’ll use to connect the GHL Contacts API to the Zapier App Connector include endpoints, authentication, data mapping, and error handling.
An API is a set of rules that enables apps to communicate. You request data from a service and receive a structured response.
OAuth 2.0 is an authorization framework that lets apps obtain limited access tokens without sharing passwords, enabling secure API calls.
An endpoint is a specific URL in an API that performs an action or returns data.
A task is a unit of work linked to a contact, such as a follow-up call or a to-do item.
Use a Zap to automatically create new contacts in your CRM when a form is submitted, with enrichment from the Contacts API.
Schedule and close tasks automatically when related events occur, ensuring timely follow-ups.
Route leads to dedicated sequences based on contact attributes and tags via the Contacts API.
Obtain an API key and authorize the Zapier App Connector to call the Contacts API.
Map your contact fields to Zapier fields and test each endpoint connection.
Go live and monitor automations, logs, and error alerts.
Authentication supports OAuth 2.0 or API key methods. Use OAuth for user-level access and API keys for service-to-service calls. Always keep credentials secure and rotate keys regularly.
Yes. The Contacts API enforces rate limits based on your plan. If you exceed limits, you may see throttling and delays. Implement retry logic and exponential backoff.
Field mapping lets you translate GHL contact fields to App Connector fields. Use the mapping UI to align names, data types, and required fields; validate data on test calls.
Yes. You can create and update contacts and tasks using POST and PUT endpoints. Use proper identifiers and permissions.
If a request fails, review the error response, correct the data, and retry. Enable logging and monitor for persistent issues.
Use test or sandbox environments, run test calls, and verify responses before going live. Validate authentication and mapping with sample data.
API docs and examples are available in both the Contacts API reference and App Connector docs. Look for endpoint tables, sample requests, and error codes.
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