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SMS

Send messages from an approved sender ID and read delivery results. Messages are billed in SMS credits: one credit per 160 characters per recipient.

GET
List sender IDs
/sms-api/senderIds
All sender IDs on your account with their approval status. Use the id of an approved sender when sending messages or OTPs.
POST
Request a sender ID
/sms-api/requestSenderId
Submit a new sender ID for approval. Approval is manual and usually completes within one business day; poll the list endpoint for the status.
POST
Send SMS
/sms-api/send
Send one message to a list of recipients, to whole contact groups, or both. Recipients are de-duplicated and normalised to the 233 format. The response returns a campaign id you can use to fetch per-recipient delivery status.
GET
Send SMS (GET)
/sms-api/send
The same operation as Send SMS for platforms that can only make GET requests, such as USSD gateways and legacy PBX systems. Pass the fields in the query string; repeat recipients[] for each number.
GET
Campaign delivery report
/sms-api/campaignMessages/{campaignId}
Per-recipient messages for a campaign returned by Send SMS, with the current delivery status of each. Paginated.