To securely access Contacts data from Your App, use OAuth 2.0 with scopes aligned to contacts.readonly, and rotate tokens regularly for ongoing security.
Configure Your App to securely store and refresh access tokens, handle expiry, and protect user data during API calls.
The following endpoints are available for retrieving and updating contacts, tasks, notes, and appointments to support your workflows.
Trigger example: fetch a contact by ID when your app needs current data for display or processing.
Actions include: GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes.
GET /contacts/:contactId
key fields: contactId, firstName, lastName, email, phone, status
Trigger when a contact is updated in Your App to sync with GHL.
Actions: PUT /contacts/:contactId to update; POST /contacts/:contactId/tasks to create tasks.
PUT /contacts/:contactId
fields mapped: contactId, updatedFields, lastModified
Trigger when new lead data is available in Your App to create a contact in GHL.
Actions: POST /contacts/ to create a contact; POST /contacts/:contactId/tasks to create tasks.
POST /contacts/
required fields: name, email; optional: phone, businessId
Automate data synchronization without writing server code, enabling rapid integration and updates.
Build powerful automation workflows that respond to contact updates, tasks, and notes in real time.
Centralize data into dashboards and reports for faster decision making.
This glossary defines core concepts used throughout the guide, including contacts, endpoints, triggers, actions, and authentication.
A person entry in GHL with fields like id, firstName, lastName, email, phone, and custom fields.
A specific API route (path) and HTTP method used to access a resource.
An event in your app or the integration that starts an automation or data sync.
An operation performed in response to a trigger, such as create or update.
Automatically enrich new contacts with external data during creation to improve segmentation and outreach.
Automatically create or update tasks based on contact events to keep teams aligned and responsive.
Sync notes and activity history to provide a complete view of interactions across apps.
Create an integration in GHL and configure OAuth 2.0 credentials for Your App.
Map fields from Your App to Contacts API endpoints to enable accurate data transfer.
Test thoroughly, set up error handling, and deploy to production with monitoring in place.
Yes. The Contacts API provides endpoints to read, create, update, and delete contacts, plus associated resources like tasks, notes, and appointments. You can fetch a specific contact by ID, list tasks and notes for a contact, and manage appointments as needed. Use GET to retrieve data and POST/PUT/DELETE for modifications. Pagination and filtering options are available on list endpoints to control response size and relevance. Keep in mind scope restrictions such as contacts.readonly when planning read-only integrations.
Some integrations can be built with no code using Zapier App Connector to map fields and automate flows. However, more complex scenarios may require light scripting or middleware to transform data between Your App and GHL. If you prefer zero-code, rely on the pre-built triggers and actions in the connector and use built-in data mapping.
Authentication uses OAuth 2.0 to grant limited, revocable access tokens. Always store tokens securely, rotate them on a schedule, and use scopes that limit access to the minimum required data. For production, implement token refresh logic and secure storage to protect user data.
Yes. You can create new contacts using POST /contacts/ and then optionally create related tasks via POST /contacts/:contactId/tasks. Ensure required fields like name and email are provided, and handle responses to capture the new contactId for subsequent calls.
You can manage tasks, notes, and appointments via their respective endpoints. Create, update, or fetch items associated with a contact by using the contactId as a reference. This enables comprehensive activity tracking within your app.
Rate limits vary by plan and endpoint. Plan for backoff and retries on 429 responses, and design your integration to batch requests where possible to stay within quotas while maintaining data freshness.
Yes. List endpoints support pagination, filtering, and sorting to retrieve specific records. Use query parameters to control page size and navigational cursors to access subsequent pages.
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Complete Operations Catalog - 126 Actions & Triggers
