Access is granted via the HALDA app using the required scope contacts.readonly. Keep tokens secure and rotate credentials regularly.
HALDA authenticates to the GHL API with a generated token. Store credentials safely and never expose in client-side code.
Endpoint1: GET /contacts/:contactId; Endpoint2: GET /contacts/:contactId/tasks; Endpoint3: GET /contacts/:contactId/tasks/:taskId; Endpoint4: GET /contacts/:contactId/notes; Endpoint5: GET /contacts/:contactId/notes/:id; Endpoint6: GET /contacts/:contactId/appointments; Endpoint7: GET /contacts/; Endpoint8: GET /contacts/business/:businessId; Endpoint9: contacts.write; Endpoint10: POST /contacts/; Endpoint11: PUT /contacts/:contactId; Endpoint12: DELETE /contacts/:contactId; Endpoint13: POST /contacts/:contactId/tasks; Endpoint14: PUT /contacts/:contactId/tasks/:taskId; Endpoint15: PUT /contacts/:contactId/tasks/:taskId/completed; Endpoint16: DELETE /contacts/:contactId/tasks/:taskId; Endpoint17: POST /contacts/:contactId/tags
Trigger: New contact created in HALDA
Actions: POST /contacts/ to create or PUT /contacts/:contactId to update
Example path: POST /contacts/ and PUT /contacts/:contactId
Fields: email, firstName, lastName, phone
Trigger: HALDA status updates or task assignments
Actions: PUT /contacts/:contactId to update status and POST /contacts/:contactId/tasks to create tasks
Paths: PUT /contacts/:contactId, POST /contacts/:contactId/tasks
Fields: contactId, status, taskId
Trigger: HALDA adds a note or tag to a contact
Actions: POST /contacts/:contactId/notes, POST /contacts/:contactId/tags
Paths: POST /contacts/:contactId/notes and POST /contacts/:contactId/tags
Fields: contactId, noteId, tag
Fast setup with no-code automation to connect HALDA and Contacts API
Automate routine syncs and reduce manual data entry
Scalable integration that grows with your business
Definitions of essential elements and processes used in this integration guide.
An interface that allows HALDA and GHL to exchange data programmatically.
A URL endpoint that receives real-time event notifications from HALDA or GHL.
A specific URL for an API operation, such as GET /contacts/:contactId.
The process of validating access rights before an API call.
Automatically create a contact in the Contacts API when a new lead is added in HALDA, with prefilled fields.
Create tasks in Contacts API when HALDA assigns a follow-up task.
Sync notes and tags to organize contacts in the Contacts API based on HALDA events.
Obtain API credentials for HALDA to access the Contacts API with the required scope.
Set up the endpoint mappings in HALDA to call GET, POST, PUT and DELETE on the Contacts API as needed.
Run tests, verify data sync, and monitor logs for errors.
HALDA is a no-code automation app that connects with external services to streamline workflows. It can trigger actions in the Contacts API when events occur in HALDA. This enables real-time data synchronization between HALDA and your contact records. By using HALDA, you can automate onboarding, updates, and follow-ups without writing code. In short, HALDA acts as the bridge between your system and the Contacts API.
The Contacts API is the programmatic interface provided for managing contacts, notes, tasks, and related data. It exposes endpoints to create, read, update, and delete contacts, as well as to manage tasks, notes, appointments, and tags. This API enables HALDA to perform automated data operations and keep records consistent across systems. Understanding the core endpoints helps you design reliable workflows.
HALDA authenticates with the Contacts API using credentials granted to the HALDA app and the required scope. Ensure you securely store API keys or tokens, rotate them regularly, and implement proper permissions (such as contacts.readonly). Use server-to-server authentication to keep credentials off the client side and protect data.
The available endpoints include read operations for contacts, tasks, notes, and appointments, as well as write operations for creating and updating records. The list also includes endpoints for batch-like actions such as adding tags and completing tasks. Review the endpoint list in the Endpoints section to choose the exact routes you need for your workflow.
Yes. You can create new contacts, update existing ones, add tasks, attach notes, and apply tags via the corresponding POST and PUT endpoints. Plan your data model so fields like email, name, and identifiers map cleanly between HALDA and the Contacts API to avoid duplicates.
Security considerations include using secure token-based authentication, restricting scopes to what is needed, validating inputs, and monitoring for unusual activity. Ensure data transfers are done over HTTPS and store credentials securely using your preferred secret management system.
Examples and templates are available in the integration docs and examples library. Start with a basic contact creation workflow, then add notes, tasks, and tags as you validate the data flow. Use test environments to validate end-to-end behavior before going live.
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