Use OAuth 2.0 with the scope set to contacts.readonly. Exchange your app credentials for an access token and refresh when needed.
Hello Audio will request access tokens to call the Contacts API. Ensure your app is registered with the provider and requests the same scope to read contact data.
Available endpoints include: 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; API endpoints include: 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: contact data changes in Hello Audio
Actions: read the latest contact from the Contacts API, push updates to the contact record, and log the activity
GET /contacts/:contactId
Key fields: id, email, name
Trigger: a new or updated task in Hello Audio
Actions: create or update a task in the Contacts API and link it to the related contact
POST /contacts/:contactId/tasks
Key fields: contactId, taskId, status
Trigger: a tag is added to a contact in Hello Audio
Actions: apply tags in the Contacts API (POST /contacts/:contactId/tags) and route campaigns accordingly
POST /contacts/:contactId/tags
Key fields: contactId, tags
Automate data sync without writing code
Centralize contact data across apps for a single source of truth
Faster setup with minimal maintenance
This section explains API terms, endpoints, authentication, and data flows used to connect Hello Audio with the Contacts API.
An API is a set of rules that lets applications talk to each other to read or update data.
OAuth 2.0 is the standard protocol used to authorize apps to access a user’s data securely without sharing credentials.
An API endpoint is a URL where you can access a specific function, such as retrieving a contact or creating a task.
Scope defines what permissions an app has when accessing an API.
Automatically create or update a contact in the Contacts API when Hello Audio captures a new lead, ensuring your CRM stays current.
Trigger reminders or tasks in the Contacts API when a contact exhibits active engagement in Hello Audio.
Tag contacts in Hello Audio and sync those tags to the Contacts API to drive personalized campaigns.
Register your Hello Audio app with the API provider, obtain client credentials, and request the necessary scopes.
Choose endpoints like /contacts and /contacts/:contactId and set the scope to read-only (and any required write permissions if needed).
Run test calls, verify data sync, and set up alerts to monitor failures or latency.
The integration lets Hello Audio read and update contact data in a centralized system, enabling seamless lead capture and CRM updates. It also supports syncing tasks, notes, and appointments so your teams stay aligned. By combining the two apps, you can automate routine data flows without manual entry. The result is faster onboarding and more accurate contact records.
Most-used endpoints include GET /contacts/:contactId to fetch contact details and POST /contacts/ to create new contacts. Tasks and notes endpoints are common when following up with leads, while TAG operations (POST /contacts/:contactId/tags) help drive targeted campaigns. The exact subset depends on your workflow, but these are typically central to Hello Audio + Contacts API integrations.
You can use no-code automation tools to connect these apps, but some scenarios benefit from lightweight scripting or custom webhooks. The core integration can be achieved without writing code by using OAuth, endpoint mappings, and action templates. If you need advanced logic, you can add small scripts for data transformation.
Secure authentication relies on standard OAuth 2.0 flows and least-privilege scopes. Never expose client secrets in client-side code, and rotate tokens regularly. Use secure redirect URIs, monitor token usage, and implement revocation when needed.
Yes. Use sandbox or staging environments or test endpoints if available. Start with read-only scopes to verify data flow, then gradually enable write permissions in a controlled manner. Always back up data before making changes in live environments.
Access tokens expire after a set period. Use refresh tokens to obtain new access tokens without user intervention. If a token expires unexpectedly, trigger a re-auth flow or refresh process to maintain uninterrupted access.
Monitor syncs and errors via your integration platform’s dashboards or webhooks. Set up alerts for failures or latency, and review endpoint logs to diagnose issues quickly. Regularly verify data consistency between Hello Audio and the Contacts API.
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