To access the Contacts API, generate an OAuth token or use your GHL API key per your organization’s setup. Ensure your access scope includes at least contacts.readonly for read operations, and add contacts.write if you plan to create or update records.
Authenticate via OAuth 2.0 or API key in the Zapier App Connector settings. Use your app’s client credentials and grant permissions for reading contacts, tasks, notes, appointments, and tags as needed.
GET /contacts/:contactId — Retrieve a single contact with basic details GET /contacts/:contactId/tasks — List tasks for a contact GET /contacts/:contactId/tasks/:taskId — Retrieve a specific task for a contact GET /contacts/:contactId/notes — List notes for a contact GET /contacts/:contactId/notes/:id — Retrieve a specific note GET /contacts/:contactId/appointments — List appointments for a contact GET /contacts/ — List all contacts GET /contacts/business/:businessId — List contacts by business contacts.write — Permission to write contact data POST /contacts/ — Create a new 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 for a contact PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed DELETE /contacts/:contactId/tasks/:taskId — Delete a task POST /contacts/:contactId/tags — Add tags to a contact
Trigger: Retrieve a contact’s details by ID and pull related data such as tasks, notes, and appointments when needed.
Actions: GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments
GET /contacts/:contactId; GET /contacts/:contactId/tasks; GET /contacts/:contactId/notes; GET /contacts/:contactId/appointments
Required: contactId. Optional: include related data by using the endpoints for tasks, notes, and appointments.
Trigger: When a new contact is created in GHL, automatically create a corresponding contact in the Zapier app and attach initial tasks.
Actions: POST /contacts/, POST /contacts/:contactId/tasks
POST /contacts/; POST /contacts/:contactId/tasks
Required: name, email. Optional: businessId, phone, custom fields.
Trigger: When a task is completed in TeamGantt, reflect completion status in the associated contact record in GHL.
PUT /contacts/:contactId/tasks/:taskId/completed; PUT /contacts/:contactId/tasks/:taskId
Required: contactId, taskId. Field: completed (true/false).
No-code setup means you can connect systems without writing code, saving time and resources.
Rapid deployment: get automations up and running in minutes rather than days.
Scalable workflows that grow with your data and team size.
Familiarize yourself with the core terms used in these integrations—API endpoints, triggers, actions, and fields—and how they map between GHL, Zapier App Connector, and TeamGantt.
A URL path and HTTP method that performs a specific operation in an API.
An event that starts an automation workflow in Zapier.
An operation executed by a workflow in response to a trigger.
The method used to verify identity and grant access to API data (OAuth or API key).
Automatically create or update a contact in GHL when a new onboarding task is added in TeamGantt via Zapier.
As a TeamGantt task is completed, push updates to the related contact’s record in GHL.
Use contact-level data to create or update a TeamGantt project with milestones and due dates.
Obtain GHL and Zapier app credentials and grant the required scopes for reading and writing data.
Select the endpoints you need (for example, GET /contacts/:contactId) and define field mappings.
Create Zapier zaps or flows to automate data movement between GHL, the Contacts API, and TeamGantt.
The integration exposes a comprehensive set of endpoints, including retrieving contacts, their tasks, notes, appointments, and tag management. You can also create, update, or delete contacts and tasks as needed. Use GET for reading data and POST/PUT/DELETE for modifications. Tip: Start with GET /contacts/:contactId to validate access before enabling writes.
No traditional coding is required if you use the Zapier App Connector. The flow designer lets you map triggers to actions visually. For advanced logic, you can insert filters and multi-step zaps. If you need custom code, you can add a small code step, but it’s optional.
Authentication is handled via OAuth 2.0 or API keys in the Zapier App Connector. You’ll authenticate both the GHL side and the Zapier app, then grant the necessary scopes for the endpoints you intend to use. Keep your credentials secure and rotate keys periodically.
Yes. You can write back to GHL for creates and updates using the write-enabled endpoints (e.g., POST /contacts/ and PUT /contacts/:contactId). Ensure your triggers include appropriate permissions and error handling.
Contacts records include fields like name, email, phone, and custom fields. You can supplement with related data such as businessId, tags, and notes. Field mappings depend on which endpoints you enable in the Zapier app.
Yes. For a no-code setup, use Zapier’s visual editor to connect the GHL Contacts API to TeamGantt actions. If you need more control, you can embed code steps, but it’s not required for standard workflows.
Rate limits depend on your GHL plan and endpoint. Start with moderate usage and monitor via the Zapier task history. If you hit limits, implement batched calls and caching strategies.
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Complete Operations Catalog - 126 Actions & Triggers
