XenSMS Docs

Bulk SMS

Send the same body to many recipients in one signed request.

json
POST https://api.xensms.co/api/v1/messages/bulk/sms

{
  "recipients": ["+254712345678", "+254700000001"],
  "content": "Flash sale ends tonight!",
  "senderId": "XENDATA"
}

For CSV uploads, use the dashboard bulk uploader or the multipart upload endpoint documented in Swagger at https://api.xensms.co/api-docs (legacy reference).