Access to the Contacts API from LinkedPhone requires valid credentials. Obtain an API key or set up OAuth for your application, then configure the credentials in LinkedPhone with the correct scope (readonly for data viewing or write for updates).
LinkedPhone authenticates to the Contacts API using the same credentials. Ensure the app is granted the appropriate scope and that credentials are stored securely and rotated periodically.
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; 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; POST /contacts/:contactId/tags
Trigger: a contact is requested or updated in LinkedPhone to fetch the latest details and associated tasks
Actions: fetch contact details and related tasks, then sync to the LinkedPhone contact record
GET /contacts/:contactId
Key fields: contactId, name, email, phone, status
Trigger: new or updated contact in Contacts API triggers actions in LinkedPhone
Actions: POST /contacts/ to create, then POST /contacts/:contactId/notes to attach notes
POST /contacts/
Key fields: contactId, email, name
Trigger: a task status changes in the Contacts API
Actions: PUT /contacts/:contactId/tasks/:taskId/completed to mark done
PUT /contacts/:contactId/tasks/:taskId/completed
Key fields: contactId, taskId, status
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This section defines the core elements and processes you will use to connect the GHL Contacts API with LinkedPhone.
Application Programming Interface – a set of rules that lets apps talk to each other.
A specific URL path in an API used to perform an action or fetch data.
Verifying identity to access the API, typically via API keys or OAuth.
A URL that receives event driven updates from an API in real time.
Pull external data sources to enrich LinkedPhone contact records automatically.
Create tasks in LinkedPhone when new contacts are added or updated in GHL.
Auto generate notes and tags based on activity to improve searchability.
Create an API key or OAuth app in GHL and note the client ID and secret.
Select the endpoints you need and map response fields to LinkedPhone contact fields.
Run tests, verify data flows, and enable in production with monitoring.
To connect, you need credentials from GHL for the Contacts API. In the GHL developer portal, create an API key or configure an OAuth app and grant the Contacts API scope. Then enter these credentials into LinkedPhone’s connection settings and verify the connection. Be sure to store keys securely and follow best practices for credential management. The setup should include configuring the correct scope and refreshing tokens as needed. Maintain least privilege access and rotate credentials on a regular schedule.
The integration supports endpoints for retrieving and managing contacts, their tasks, notes, appointments, and tags. You can fetch, create, update, and delete records as needed, with field mapping available to align GHL data to LinkedPhone fields. Not every endpoint is required for every page, but you can use the full set as your workflow demands.
Authentication is typically done via API keys or OAuth tokens. You must configure the correct scopes in GHL and securely store the credentials in LinkedPhone. Token refresh and rotation should be planned, and your app should handle authentication errors gracefully with retries and fallback logic.
Yes, you can create new contacts with POST /contacts/. You can also update existing contacts with PUT /contacts/:contactId. Ensure your mapping aligns LinkedPhone fields to the API payload and validate responses before applying changes in production.
Tasks and notes can be created, read, and updated via the provided endpoints. You can pull a contact’s tasks, create new tasks, update their status, and attach notes to contacts as part of your automation flow. This keeps LinkedPhone synchronized with CRM activity.
GHL imposes rate limits and quotas based on plan and endpoint type. Plan accordingly and implement exponential backoff for retries. Monitor usage and adjust requests to stay within limits to avoid throttling.
Webhooks can be configured to push real-time updates from GHL to LinkedPhone for events like contact changes, new tasks, or notes additions. This enables near-instant sync and reduces polling needs, improving denser automation capabilities.
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