Bulk Send SMS
Send the same message to multiple selected contacts in a campaign. The AI agent remains active — any replies from contacts will still be handled by the AI as normal.Endpoint
Authentication
Your API key
Request Body
The campaign ID containing the contacts
Array of phone numbers to send to (E.164 format recommended, e.g.
+15551234567)The message text to send to all selected contacts
Response
Whether the bulk operation completed (individual messages may still fail)
Summary of the bulk send results
Total number of contacts targeted
Number of messages sent successfully
Number of messages that failed
Per-contact send results
Example Request
Example Response
Error Responses
400
Important Notes
- AI stays active — the AI agent will continue handling replies from contacts
- Contacts must already exist in the specified campaign
- The endpoint processes messages sequentially; failed sends do not stop remaining messages
- The response includes per-contact results so you can identify and retry failures

