How to send Email via REST API in Salesforce?

Path:
/services/data/v53.0/actions/standard/emailSimple
 
HTTP Method:
POST

Body:
{
  "inputs" : [
    {
      "emailBody" : "Email body",
      "emailAddresses" : "email addresses separated by coma(',')",
      "emailSubject" : "Subject",
      "senderType" : "CurrentUser"
    }
  ]
}

Reference Link:
 
Example:
 

Output: