Authenticate requests using your GHL credentials and ensure the scope is set to readonly access for contacts.
Fergus connects to the GHL API securely via OAuth. Use your Fergus app credentials and the proper redirect URI to obtain tokens.
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; 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: fetch a contact by ID using GET /contacts/:contactId
Actions: read contact details and pull related tasks and notes
Method path: GET /contacts/:contactId
Key fields: contactId, name, email, phone
Trigger: GET /contacts/:contactId/tasks
Actions: pull tasks and status
Method path: GET /contacts/:contactId/tasks
Key fields: taskId, status, dueDate
Trigger: GET /contacts/:contactId/notes
Actions: retrieve and attach notes to contact
Method path: GET /contacts/:contactId/notes
Key fields: noteId, content, createdAt
Automate data sync without programming
Leverage ready-made endpoints for rapid setup
Improve data consistency across apps and teams
A glossary of terms used in this guide to help you implement quickly
A URL path to access a specific resource in the GHL API
Authorization framework that lets apps access user data securely
Process of verifying identity and permissions for API access
Permissions granted to an access token, e.g., contacts.readonly
Use a trigger to create a task in Fergus when the contact data changes via GET /contacts/:contactId
Push notes to /contacts/:contactId/notes when events occur in Fergus
Schedule a nightly pull of all contacts using GET /contacts/ and update Fergus
Create an OAuth client in the GHL developer portal and save the client ID and secret
Set the redirect URL and required scopes for contacts.readonly
Make test calls to GET /contacts/:contactId and validate data flow
No coding is required to connect Fergus with the Contacts API. Our no-code connectors provide triggers and actions that map directly to API endpoints. However, a basic understanding of the endpoints helps you design better workflows and debug issues faster.
You can access contact details, notes, tasks, and appointments depending on the scope. The given scope is contacts.readonly. If you need write access, request additional permissions in your GHL app settings.
Requests are authenticated via OAuth tokens issued by GHL. Include the access token in the Authorization header and use the correct scope.
Key read endpoints include GET /contacts/:contactId, GET /contacts/:contactId/tasks, and GET /contacts/:contactId/notes. The API also exposes endpoints for listing contacts and business data as needed.
Yes, you can update contacts via PUT /contacts/:contactId and add tasks using POST /contacts/:contactId/tasks. Ensure your token has the necessary write permission and follow the API contracts.
Yes, there are rate limits in place to protect the API. If you exceed limits, you will receive a 429 response. Consider implementing exponential backoff and caching for efficiency.
If a request fails, check the status code and message from the API response, then retry with backoff. Review authentication tokens, endpoints, and scopes to resolve common issues.
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