Start a conversation
Sends a first message to a contact from one of your channels, and opens the conversation (or continues the existing one). On WhatsApp, outside the 24h window opened by the contact, only an approved template can be sent (GET /templates). The AI agent keeps answering the contact unless handover is true.
Authorizations
Company API key, sent as Authorization: Bearer <key>. Create it in the dashboard (Developer > API Keys) with the permissions the integration needs.
Body
whatsapp, mail, shortext Your channel id (GET /channels): WhatsApp phone id, mailbox id (mbx_...) or Shortext endpoint id (ste_...)
Grammar of a message, the same on every endpoint and version
true: a human follows the conversation, the AI agent does not answer the contact
Response
Always HTTP 200: the outcome is in success and code (absolute value of the response code).