Use OAuth 2.0 with a read only scope of contacts.readonly to obtain access tokens. Handle token refresh gracefully and store credentials securely. Implement retry logic for transient errors and respect API rate limits.
OpenPhone connects to the GHL Contacts API via OAuth 2.0, requesting the contacts.readonly scope. After authorization, securely store the access token and refresh it as needed to maintain a live connection.
1) GET /contacts/:contactId – Retrieve a specific contact 2) GET /contacts/:contactId/tasks – List tasks for a contact 3) GET /contacts/:contactId/tasks/:taskId – Retrieve a single task 4) GET /contacts/:contactId/notes – Retrieve notes for a contact 5) GET /contacts/:contactId/notes/:id – Retrieve a specific note 6) GET /contacts/:contactId/appointments – List appointments for a contact 7) GET /contacts/ – List all contacts 8) GET /contacts/business/:businessId – Retrieve contacts for a business 9) POST /contacts/ – Create a new contact 10) PUT /contacts/:contactId – Update a contact 11) DELETE /contacts/:contactId – Delete a contact 12) POST /contacts/:contactId/tasks – Create a task for a contact 13) PUT /contacts/:contactId/tasks/:taskId – Update a task 14) PUT /contacts/:contactId/tasks/:taskId/completed – Mark a task as completed 15) DELETE /contacts/:contactId/tasks/:taskId – Delete a task 16) POST /contacts/:contactId/tags – Add a tag to a contact
Trigger: a new contact is added in GHL
Actions: POST /contacts/ to create a new OpenPhone contact or PUT /contacts/:contactId to update an existing one; map name phone email and tags
Method Path: POST /contacts/ for create; PUT /contacts/:contactId for update
Key fields: contactId, name, phone, email
Trigger: OpenPhone creates or updates a contact
Actions: PUT /contacts/:contactId to update in GHL; attach notes or tasks as needed
Method Path: PUT /contacts/:contactId
Key fields: contactId, lastModified, source
Trigger: tag added or removed on GHL contact
Actions: POST /contacts/:contactId/tags to add or remove tags as needed
Method Path: POST /contacts/:contactId/tags
Key fields: contactId, tagName
Automate workflows without writing code
Reduce manual data entry and errors with real-time data sync
Scale integrations across teams with consistent data and centralized control
Elements you will encounter include API endpoints authentication flows webhooks and data mapping processes
An API is a set of rules that lets applications talk to each other and exchange data programmatically
A specific URL in an API used to perform an action
The process of verifying identity to access API resources
A URL that receives real-time event notifications from an API
Use rules to merge duplicate contacts and keep OpenPhone data clean and up to date
Trigger team channels when contact status changes in GHL to keep everyone aligned
Create audience segments in OpenPhone from GHL data to tailor messages
Acquire OAuth tokens with the Contacts API scope and grant OpenPhone access
Map GHL fields to OpenPhone fields and test each endpoint
Enable webhooks monitor logs and adjust mappings as needed
Authentication uses OAuth 2.0 with access tokens. You will authorize OpenPhone to access the GHL Contacts API with the appropriate scope and receive tokens to make requests. Tokens expire and should be refreshed automatically by your integration. If you implement a service account or other method, follow best security practices and rotate credentials regularly.
The required scope for read access is contacts.readonly. If your integration also needs write capabilities you would request contacts.write. Always request the minimum scope needed for each operation to reduce risk and improve security.
The available endpoints cover reading contacts someone, tasks notes and more. Use GET for reads POST for creates PUT for updates PATCH where supported and DELETE for removals. Map paths correctly and handle responses and errors in your app.
To test connections start with a sandbox or development environment. Authenticate, call a read endpoint like GET /contacts/:contactId, verify the response, then progressively test writes with a test contact. Review error messages and adjust scopes or mappings as needed.
Yes you can sync tags between GHL and OpenPhone using the tags endpoint. Create tags in OpenPhone from GHL or reflect tag updates in GHL by hitting the tags path. Ensure tagName field is mapped correctly and maintain consistency across systems.
Endpoint paths are defined in the API reference for the Contacts API. Start with /contacts and explore related resources like tasks notes and tags. Use the documented HTTP methods and response structures to integrate accurately.
Webhooks are supported to deliver real-time updates. Configure the webhook URL in your GHL/OpenPhone setup and handle incoming event payloads to keep data in sync. Monitor retries and implement idempotency to avoid duplicates.
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Complete Operations Catalog - 126 Actions & Triggers
