Authenticate requests to the GHL Contacts API using OAuth 2.0 tokens with the required scope: contacts.readonly. Store tokens securely and refresh as needed.
To connect OnePageCRM to the GHL Contacts API, configure your app with the proper client credentials, authorize the connection, and attach the access token to subsequent API calls.
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; contacts.write (scope); 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: When a contact is opened or updated in OnePageCRM, fetch the latest data from GHL via GET /contacts/:contactId.
Actions: GET /contacts/:contactId; GET /contacts/:contactId/tasks; GET /contacts/:contactId/notes
GET /contacts/:contactId
contactId; appUserId
Trigger: New or updated contact in OnePageCRM.
Actions: POST /contacts/; PUT /contacts/:contactId
POST /contacts/
name; email; phone
Trigger: A new task or note is created in GHL for a contact.
Actions: POST /contacts/:contactId/tasks; POST /contacts/:contactId/notes
POST /contacts/:contactId/tasks; POST /contacts/:contactId/notes
contactId; taskTitle; noteContent
No‑code setup lets you connect systems without custom development.
Automated data synchronization reduces manual data entry and errors.
Fast onboarding with visual builders and prebuilt templates.
Key elements you’ll see include endpoints, authentication, triggers, actions, and fields. Understanding these helps you design reliable data flows between GHL and OnePageCRM.
A URL path used to access a resource in an API (for example, GET /contacts/:contactId).
An event that starts a workflow in another system (e.g., a contact update in OnePageCRM triggering a data sync from GHL).
The process of proving identity to access API resources securely (e.g., OAuth 2.0 tokens).
A data object exposed by an API, such as a contact, task, or note.
Automatically sync new and updated contacts between GHL and OnePageCRM to keep records consistent.
Create follow-up tasks in OnePageCRM when milestones occur in GHL.
Auto-create notes in OnePageCRM from key GHL activities for audit trails.
From the GHL developer portal, create OAuth credentials and note the client ID and secret.
Enter the endpoint base URL, client credentials, and scopes in OnePageCRM’s integration settings.
Run a test sync, verify data integrity, and monitor API responses for errors.
The GHL Contacts API typically uses OAuth 2.0 tokens for authentication. You will authorize requests with a bearer token and apply the required scope (contacts.readonly).
No dedicated coding is required if you use a no-code connector or app builder. You can configure endpoints, triggers, and actions in the UI and test the flow.
Key endpoints include GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, POST /contacts/, PUT /contacts/:contactId, and related task/note endpoints.
Respect rate limits by batching requests and handling 429 responses with backoff. Use retries and exponential backoff strategies.
Yes. You can map specific fields (name, email, phone, company) between systems, and set rules for when data should sync.
Use a sandbox or test mode if available, then run a controlled sync to verify behavior before going live.
Enable logging within the app to view API calls, responses, and error messages for troubleshooting.
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Complete Operations Catalog - 126 Actions & Triggers
