Access to the Contacts API is controlled via OAuth 2.0 with the scope contacts.readonly. Use your GHL developer credentials to generate tokens.
Local Line connects to the Contacts API through a secure OAuth dance and API keys where applicable. Store tokens securely.
GET /contacts/:contactId\nGET /contacts/:contactId/tasks\nGET /contacts/:contactId/tasks/:taskId\nGET /contacts/:contactId/notes\nGET /contacts/:contactId/notes/:id\nGET /contacts/:contactId/appointments\nGET /contacts/\nGET /contacts/business/:businessId\nPOST /contacts/\nPUT /contacts/:contactId\nDELETE /contacts/:contactId\nPOST /contacts/:contactId/tasks\nPUT /contacts/:contactId/tasks/:taskId\nPUT /contacts/:contactId/tasks/:taskId/completed\nDELETE /contacts/:contactId/tasks/:taskId\nPOST /contacts/:contactId/tags
Trigger: When you need to fetch or sync a contact’s profile.
Actions: Get contact data, fetch tasks, notes, and appointments for that contact.
GET /contacts/:contactId
Key fields: contactId, name, email, phone
Trigger: Retrieve all tasks for a given contact.
Actions: List tasks, filter by status, create or update tasks.
GET /contacts/:contactId/tasks
Key fields: taskId, title, status, dueDate
Trigger: Retrieve notes for a specified contact.
Actions: List notes, view note details.
GET /contacts/:contactId/notes
Key fields: id, note, createdAt
Automate data flows without writing code using Zapier and webhooks.
Keep contacts, tasks, notes, and appointments in sync in real time.
Build scalable workflows with endpoint-level permissions.
Definitions of terms and processes used when integrating GHL Contacts API with Local Line.
Verifying identity to grant access to resources.
A specific URL path to access a resource in an API.
A set of permissions that govern API access.
A callback URL or event that notifies your app of changes.
Automatically create or update contacts when new leads arrive from Local Line.
Generate tasks from notes and events to keep follow-ups timely.
Sync notes between Local Line conversations and Contacts API records.
Grant permissions in GHL and authorize Local Line to access Contacts API.
Select endpoints such as GET /contacts/:contactId to build workflows.
Test calls, validate data, then deploy and monitor.
You will need your GHL developer credentials and an OAuth 2.0 client configured for the Contacts API with the scope contacts.readonly. Ensure you have access to the Local Line app as the app owner. In some setups you may use an API key or token-based approach if supported. Store credentials securely and rotate regularly.
No-code options via Zapier app connector allow you to connect endpoints without custom code. There is still value in understanding endpoints to design robust, scalable workflows and to troubleshoot issues when they arise.
Common workflows include: fetch a contact by ID, list tasks for a contact, fetch notes, and create tasks. You can combine multiple endpoints into a single Zap or automation to streamline processes.
Use OAuth 2.0 to obtain an access token and refresh it before expiry. Keep tokens secure, rotate secrets regularly, and implement error handling for expired tokens.
Yes, by polling or webhooks depending on your setup; for the Contacts API you can trigger on changes to contacts, tasks, notes, and appointments. Configure your Zap or automation to respond to these events in near real-time where supported.
Scopes determine which actions your app can perform. Use at minimum contacts.readonly for retrieval and add write or manage scopes for updates and creation. Always apply the principle of least privilege to minimize risk.
Endpoint examples are in the ENDPOINTLIST section above; you can also consult the developer docs for request and response schemas. Bookmark the docs for quick reference when building automations.
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Complete Operations Catalog - 126 Actions & Triggers
