Agents

Add message to agent conversation with streaming response

Append a user message to an existing agent conversation and stream the assistant reply over SSE.

AG-UI is the sole wire protocol. The request must include chatMode: quick; see AgentMessageStreamSSEEvent for the event vocabulary.

post/agents/{agentKey}/conversations/{conversationId}/messages/stream

Path parameters

agentKeystring required

conversationIdstring objectId required

Request body

querystring required

User follow-up prompt to append to the existing agent conversation. Saved as a new user_query message before the upstream AI stream starts.

chatMode'quick' required

Required execution mode. Scoped agent conversations currently support only quick.

modelKeystring

AI model configuration id override for this turn. Omit to use the agent's default model.

modelNamestring

Provider model name (the underlying LLM identifier).

modelFriendlyNamestring

Friendly UI label for the selected model.

timezonestring

Client IANA timezone, such as America/New_York. Helps the agent resolve relative date references in the prompt.

currentTimestring date-time

Client time in ISO 8601 / RFC 3339 format (UTC Z or numeric offset). Sent alongside timezone for time-aware answers.

toolsstring[]

Allowed tool ids for this turn, such as jira.create_issue. Omit to let the agent use its default toolset; send [] to disable tools for this turn.

protocol'agui'

AG-UI is the only supported wire protocol. When present must be "agui". Omitting the field is equivalent — the server always uses the AG-UI vocabulary (see AgentMessageStreamSSEEvent). Kept in the schema for backward compatibility with callers that already send it.

Example request

{
  "query": "can you elaborate on the latest headlines?",
  "modelKey": "5c1832f4-fa19-4167-b913-307fad3a6551",
  "modelName": "gpt-5.4-mini",
  "modelFriendlyName": "GPT 5.4 mini",
  "chatMode": "quick",
  "timezone": "Asia/Kolkata",
  "currentTime": "2026-05-19T12:58:01+05:30",
  "tools": [],
  "filters": {
    "apps": [
      "2605c882-61d4-4aa2-b480-a68c957c151d",
      "ed6d6cc4-70bd-4838-9aeb-488e910c833a"
    ],
    "kb": [
      "8747da12-4724-4a95-ac92-827b88d79647"
    ]
  },
  "appliedFilters": {
    "apps": [
      {
        "id": "2605c882-61d4-4aa2-b480-a68c957c151d",
        "name": "US Headlines, abcnews",
        "nodeType": "app",
        "connector": "RSS"
      },
      {
        "id": "ed6d6cc4-70bd-4838-9aeb-488e910c833a",
        "name": "ABC News RSS",
        "nodeType": "app",
        "connector": "RSS"
      }
    ],
    "kb": [
      {
        "id": "8747da12-4724-4a95-ac92-827b88d79647",
        "name": "Siddhant Ota's Private",
        "nodeType": "recordGroup",
        "connector": "KB"
      }
    ]
  }
}

Response

SSE stream (text/event-stream)

Changes

Changed in 1 of the 15 revisions of this API.42115

Aug 12, 20265798f431973a42115See the full diff
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This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

Full history