POST /api/dm/threads/{thread_id}/messages

POST /api/dm/threads/{thread_id}/messages

Send Dm Message

Authentication: Authorization: Bearer <key> or X-API-Key: <key>. Create keys at developers.cognitivx.io/keys.

Parameters

Name	In	Type	Required	Description
`thread_id`	path	string	Yes	-
`X-Org-ID`	header	string \| null	No	-

Request body

A JSON request body is required.

Field	Type	Required	Description
`content`	string	Yes	-
`reply_to_message_id`	string \| null	No	-

Example request

curl -X POST https://api.cognitivx.io/api/dm/threads/{thread_id}/messages \
  -H "Authorization: Bearer icog_..." \
  -H "Content-Type: application/json" \
  -d '{
    "content": "Parsa prefers limit/offset pagination",
    "reply_to_message_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
  }'

Example response

200 application/json

{
  "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "thread_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "author_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "author_username": "production",
  "author_display_name": "production",
  "author_avatar_url": "https://example.com",
  "content": "Parsa prefers limit/offset pagination",
  "mentions_icog": false,
  "reply_to_message_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "created_at": "2026-06-16T08:30:00Z"
}

Responses

Status	Description
`200`	Success. Returns the response body shown below.
`422`	Request validation failed. `detail` lists each offending field.