post https://api.in.kaleyra.io/v1//messages/json
You can send bulk message using JSON file. To send marketing messages use "type" value as "MKT". To send transactional messages use "type" value as "TXN". To send otp messages use "type" value as "OTP". To send SMS to multiple numbers use Comma separated values in "to". Note: Select the base URL by clicking the arrow next to the Base URL (right pane).