Create conversation attachment Technical Preview

POST /api/agent_builder/conversations/{conversation_id}/attachments
Api key auth

Spaces method and path for this operation:

post /s/{space_id}/api/agent_builder/conversations/{conversation_id}/attachments

Refer to Spaces for more information.

Create a new attachment for a conversation with version tracking.

[Required authorization] Route required privileges: agentBuilder:read.

Headers

  • kbn-xsrf string Required

    A required header to protect against CSRF attacks

Path parameters

  • conversation_id string Required

    The unique identifier of the conversation.

application/json

Body

  • data Required

    The attachment data/content. Required unless origin is provided.

  • description string

    Human-readable description of the attachment.

  • hidden boolean

    Whether the attachment should be hidden from the user.

  • id string

    Optional custom ID for the attachment.

  • origin string

    Origin string (for example, saved object ID) for by-reference attachments. When provided without data, the content is resolved once at creation time.

  • type string Required

    The type of the attachment (e.g., text, esql, visualization).

Responses

  • 200 application/json

    Indicates a successful response

POST /api/agent_builder/conversations/{conversation_id}/attachments 
curl \
 --request POST 'https://<KIBANA_URL>/api/agent_builder/conversations/{conversation_id}/attachments' \
 --header "Authorization: $API_KEY" \
 --header "Content-Type: application/json" \
 --header "kbn-xsrf: true" \
 --data '{"data":"Internal system data","description":"System context","hidden":true,"type":"text"}'
Request examples
Example request for creating a hidden attachment 
{
  "data": "Internal system data",
  "description": "System context",
  "hidden": true,
  "type": "text"
}
Example request for creating a JSON attachment with custom ID 
{
  "data": {
    "configuration": {
      "enabled": true,
      "threshold": 50
    },
    "metadata": {
      "source": "user_input"
    }
  },
  "description": "Application settings",
  "id": "custom-attachment-id",
  "type": "json"
}
Example request for creating a text attachment 
{
  "data": "This is the content of my text attachment",
  "description": "Meeting notes",
  "type": "text"
}
Response examples (200)
Example response returning the created attachment 
{
  "attachment": {
    "active": true,
    "current_version": 1,
    "description": "Meeting notes",
    "id": "att-abc123",
    "type": "text",
    "versions": [
      {
        "content_hash": "sha256-xyz",
        "created_at": "2025-01-06T10:00:00.000Z",
        "data": "This is the content of my text attachment",
        "estimated_tokens": 12,
        "version": 1
      }
    ]
  }
}