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Endpoint

Base URL

Authentication

Every request must include your API key in the X-API-Key header. See Authorization to create one.

Path parameters

Request body

Recipients

Request

Response

Response fields

Errors

Notes

  • For contacts, send digits only with the country code. Do not add + or a WhatsApp suffix.
  • For groups, the session must be a member of the group.
  • Replace {session_id} with your session ID. Get it from List Sessions.
  • The text field cannot be empty.
  • Save the message_id from the response for future reference.