To access the Contacts API from HiHello, obtain your API credentials from the GHL dashboard and authorize requests with OAuth 2.0 tokens (or an API key, if provided). Use the scope relevant to read access unless you need write permissions.
HiHello uses OAuth 2.0 to securely authenticate with the GHL Contacts API. Store tokens securely, refresh them as needed, and test in a sandbox environment if available.
GET /contacts/:contactId — retrieve a contact; GET /contacts/:contactId/tasks — fetch tasks for a contact; GET /contacts/:contactId/tasks/:taskId — fetch a specific task; GET /contacts/:contactId/notes — retrieve notes; GET /contacts/:contactId/notes/:id — retrieve a note; GET /contacts/:contactId/appointments — fetch appointments; GET /contacts/ — list contacts; GET /contacts/business/:businessId — list contacts by business; POST /contacts/ — create a contact; PUT /contacts/:contactId — update a contact; DELETE /contacts/:contactId — delete a contact; POST /contacts/:contactId/tasks — create a task for a contact; PUT /contacts/:contactId/tasks/:taskId — update a task; PUT /contacts/:contactId/tasks/:taskId/completed — mark a task as completed; DELETE /contacts/:contactId/tasks/:taskId — delete a task; POST /contacts/:contactId/tags — apply tags to a contact.
Trigger: A new contact is added in HiHello, prompting a pull of the contact data and any associated tasks.
Actions: Call GET /contacts/:contactId and GET /contacts/:contactId/tasks to obtain core data needed by HiHello workflows.
Method path: GET /contacts/:contactId and GET /contacts/:contactId/tasks
Key fields: contactId, taskId, status
Trigger: When a contact record updates in HiHello, fetch related notes and appointment data.
Actions: GET /contacts/:contactId/notes and GET /contacts/:contactId/appointments to enrich the contact profile.
Method path: GET /contacts/:contactId/notes and GET /contacts/:contactId/appointments
Key fields: contactId, noteId, appointmentId
Method path: POST /contacts/:contactId/tags
Key fields: contactId, tag
Automate data sync between HiHello and the Contacts API without writing code.
Keep contact records accurate and up-to-date for precise segmentation and outreach.
Speed onboarding and simplify maintenance with ready-made endpoints and triggers.
A quick glossary of API terms, data elements, and the steps used to connect HiHello with the GHL Contacts API.
An Application Programming Interface that lets HiHello read and modify contact data through the GHL Contacts API.
The process of proving identity to access the API securely (OAuth 2.0 tokens or API keys).
A specific URL path and HTTP method used to perform an action against the API, e.g., GET /contacts/:contactId.
A callback mechanism that notifies HiHello of changes in GHL data.
Pull notes and tags to enrich contact records automatically when a contact is updated.
Create tasks via endpoints like POST /contacts/:contactId/tasks when events occur in HiHello.
Build a live view of contact activity by combining endpoints for notes, tasks, and appointments.
Obtain client ID/secret and authorize scopes such as contacts.readonly for safe access.
Map fields from HiHello to the Contacts API and set up polling or webhooks.
Run end-to-end tests and set up alerts for failures.
To read contacts, your app should request read permissions (such as contacts.readonly) from the GHL API. If you need to modify data, you will require write permissions and proper authorization. Always follow the principle of least privilege and request only the scopes you need. After obtaining the credentials, exchange them for an access token and include it in your requests.
Yes. HiHello can create or update contact records via endpoints like POST /contacts/:contactId and PUT /contacts/:contactId when you have the appropriate write permissions. Plan field mappings carefully to avoid overwriting important data. Use incremental updates where possible.
For notes and tasks, prefer GET /contacts/:contactId/notes and GET /contacts/:contactId/tasks to pull data. When updating, use POST /contacts/:contactId/tasks for new tasks and PUT /contacts/:contactId/tasks/:taskId for updates. This keeps notes and tasks in sync with contact changes.
Authentication is handled via OAuth 2.0 tokens or API keys. Keep tokens secure, rotate credentials regularly, and implement token refresh logic. Use HTTPS for all calls and store secrets in a secure vault.
Test connectivity with a development sandbox or test environment. Validate each endpoint with representative data, verify response schemas, and monitor for errors. Create test contacts, notes, and tasks to ensure end-to-end workflows work as expected.
Webhooks are supported in many flows to notify HiHello of changes in GHL data. If available in your plan, configure webhooks to trigger on contact updates, note changes, or task completions, then map the events to your automation workflows.
Rate limits vary by endpoint and plan. Reference the GHL API documentation for current quotas and implement exponential backoff and retries in your integration to handle bursts gracefully.
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Complete Operations Catalog - 126 Actions & Triggers
