Use a Bearer token or OAuth credentials to authorize requests to the GHL Contacts API from Linq. Ensure the scope is set to contacts.readonly when you only need read access.
Linq uses the GHL credentials you connect. After the initial connection, tokens refresh automatically and no separate login is required for routine reads.
GET /contacts/:contactId — Retrieve a single contact by ID.\nGET /contacts/:contactId/tasks — List tasks for a contact.\nGET /contacts/:contactId/tasks/:taskId — Get a specific task for a contact.\nGET /contacts/:contactId/notes — Retrieve notes for a contact.\nGET /contacts/:contactId/notes/:id — Retrieve a specific note.\nGET /contacts/:contactId/appointments — Fetch appointments for a contact.\nGET /contacts/ — List all contacts.\nGET /contacts/business/:businessId — List contacts for a business.\nPOST /contacts/ — Create a contact.\nPUT /contacts/:contactId — Update a contact.\nDELETE /contacts/:contactId — Delete a contact.\nPOST /contacts/:contactId/tasks — Create a task for a contact.\nPUT /contacts/:contactId/tasks/:taskId — Update a task.\nPUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed.\nDELETE /contacts/:contactId/tasks/:taskId — Delete a task.\nPOST /contacts/:contactId/tags — Add tags to a contact.
Trigger: Retrieve a contact with GET /contacts/:contactId
Actions: Import core fields (name, email, phone) into Linq and optionally pull related notes and tasks for a fuller profile.
GET /contacts/:contactId
contactId, name, email
Trigger: GET /contacts/
Actions: Iterate through results, map to Linq records, apply paging as needed.
GET /contacts/
contactId, name, email
Trigger: PUT /contacts/:contactId/tasks/:taskId/completed
Actions: Update task status in Linq after the API call and reflect completion in the CRM view.
PUT /contacts/:contactId/tasks/:taskId/completed
contactId, taskId, status
Real-time access to contact data without manual CSV exports.
Seamless linking of notes, tasks, and appointments into Linq workflows.
Faster onboarding and richer customer profiles with minimal setup.
Key elements include endpoints, authentication, data mappings, permissions, and error handling. Understanding these ensures a reliable Linq to GHL integration.
API: A set of rules that lets Linq access GHL to read and manage contact data.
Bearer tokens or OAuth credentials to authorize requests to the GHL Contacts API from Linq.
A specific URL path used to access a resource in the API, such as /contacts/:contactId.
The maximum number of API requests allowed in a period to prevent throttling.
Automatically pull new contacts from GHL and create corresponding profiles in Linq, then trigger follow-up tasks.
Attach GHL notes to Linq tasks and keep statuses in sync for team alignment.
Use GHL business data to apply Linq tags and segment audiences for targeted campaigns.
Connect Linq to your GHL account and authorize access to the Contacts API with the appropriate scope.
Run sample requests such as GET /contacts/ to verify connectivity and permissions.
Define how fields map between GHL and Linq for name, email, notes, and tasks.
No. Read-only access means you can read data but not modify it. If you require writes, request elevated scopes or separate credentials. Ensure your app only requests the permissions it needs. Always test in a sandbox before going live.
Supported authentication methods include Bearer tokens and OAuth-based credentials. After connecting, Linq automatically uses the stored tokens and refreshes them as needed. For long-running integrations, consider implementing token refresh handling. Never expose tokens in client-side code.
Rate limits depend on the GHL plan and endpoint. If you hit limits, implement exponential backoff and retry logic. Use pagination where provided to spread requests over time. Monitor error responses for 429 status codes and adjust cadence accordingly.
To fetch a single contact and their tasks, call GET /contacts/:contactId to get the profile, then call GET /contacts/:contactId/tasks to list related tasks. You can chain these calls in Linq workflows for a complete view of the contact.
Yes, if your connected credentials include write permissions. You can update notes or tasks with PUT requests like PUT /contacts/:contactId/tasks/:taskId. Remember to validate which endpoints are enabled for your API key or OAuth token.
Handle errors by inspecting HTTP status codes and API error messages. Implement retries for transient failures, log failures, and provide user-friendly messages. Validate input data before sending requests to minimize server-side errors.
The full endpoints list and sample requests are in the developer documentation for the GHL Contacts API. You can also inspect example calls in Linq’s integration guides and test endpoints with curl or Postman.
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