The Message object

Messages and threaded replies.

Attributes

idUUIDRequired

Unique ID of the message.

conversation_idUUIDRequired

Conversation the message was sent in.

sender_idUUIDRequired

User or app user who sent the message.

created_attimestampRequired

When the message was sent.

typetext, fileRequired

Whether the message carries text or a file.

bodystring or null

Message text. Null for file messages.

fileFileReference or null

File metadata. Null for text messages.

Show child attributes

idUUIDRequired

Unique ID of the file.

namestringRequired

Original file name.

mimestring or null

MIME type, such as application/pdf.

size_bytesinteger or null

File size in bytes.

reply_to_message_idUUID or null

Message this is a reply to. Null for top-level messages.

Endpoints

Method	Path	Endpoint
GET	`/conversations/{conversationId}/messages`	List messages
POST	`/conversations/{conversationId}/messages`	Send a message
GET	`/messages/{messageId}/replies`	List replies to a message

The Message object


{
  "id": "4cbfdb50-6b7d-45d4-94b3-05a52ce3f4d1",
  "conversation_id": "e5c3b7b8-8f08-4d5a-9af1-0d11b0f4b7a0",
  "sender_id": "8b9c2d2f-6b1a-44f4-a7b1-0d6d3f2d6f55",
  "created_at": "2026-09-21T15:04:05Z",
  "type": "text",
  "body": "Your appointment is confirmed for Tuesday at 10:00.",
  "file": null,
  "reply_to_message_id": null
}