Access to the Contacts API requires a valid OAuth token with the scope contacts.readonly. Include the Authorization: Bearer
Cellcast authentication is handled by the Zapier app; when you connect, the app stores a token securely and uses it to access the endpoints you grant during setup.
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; 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: a contact is created or updated in Contacts API
Actions: create or update a corresponding task in Cellcast; assign owner; set due date and status
GET /contacts/:contactId/tasks
contactId, taskId, status
Trigger: a new note is added in Contacts API
Actions: create a note in Cellcast linked to the contact
POST /contacts/:contactId/notes
contactId, noteId
Trigger: a tag is added or updated on a contact
Actions: apply or update tags in Cellcast for the linked contact
POST /contacts/:contactId/tags
contactId, tag
Speed up workflows with a no code connector
Maintain real time data consistency between systems
Easily scale automations without custom development
This section defines endpoints, authentication, triggers, and actions that move data between the Contacts API and Cellcast.
A specific URL path you call to perform an action, such as GET /contacts/:contactId.
An authorization framework that grants access tokens to apps securely without sharing user credentials.
A real-time data push mechanism that notifies your apps when an event happens.
A label attached to a contact to help categorize and segment records.
Trigger a Cellcast task whenever a contact is updated in Contacts API to keep teams aligned.
Push notes from Contacts API into Cellcast to build a complete activity history.
Apply contact tags from Contacts API to Cellcast groups for targeted messaging.
Connect Cellcast to Contacts API in Zapier, select scopes, and save credentials.
Choose triggers and actions and map fields such as id, name, email, notes, and tags.
Run a test to verify data flows correctly, then enable the Zap to start automating.
Authentication is required to access the Contacts API and the Cellcast connector. The connector uses OAuth tokens to authorize requests between systems. In this configuration the scope is read-only, which limits actions to viewing data rather than modifying it.
The integration provides access to endpoints for retrieving contacts, tasks, notes, appointments, and business data, as well as endpoints to create or update tasks, notes, and tags. Use these endpoints to build automated workflows between Contacts API and Cellcast.
Yes, you can read data from the Contacts API through this integration. Write access requires additional permissions.
To test the connection, use the built-in test feature in the Zapier app or run a test Zap. Review the token status and response payloads to confirm data is flowing correctly.
With the current readonly scope, writing data back to Contacts API is not permitted. To enable write operations, upgrade the scope to contacts.write and configure the connected app accordingly.
No heavy coding is required. The Zapier app handles authentication, endpoints, and basic mappings. You configure triggers, actions, and field mappings in a few clicks. For advanced logic, you can add steps or webhooks in Zapier.
The API endpoint list is shown in the ENDPOINTLIST section of this page and documented in the integration docs. You can review available paths and methods there to plan your workflows.
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Complete Operations Catalog - 126 Actions & Triggers
