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Stream Messages

POST/api/v1/chat/{session_id}/messages/stream

Stream agent events for a chat turn as Server-Sent Events.

Path ParametersExpand Collapse
session_id: string
Query ParametersExpand Collapse
organization_id: optional string
project_id: optional string
Cookie ParametersExpand Collapse
session: optional string
Body ParametersJSONExpand Collapse
index_ids: array of string

Indexes to retrieve data from.

prompt: string

User message for this chat turn.

maxLength1000

Stream Messages

curl https://api.cloud.llamaindex.ai/api/v1/chat/$SESSION_ID/messages/stream \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $LLAMA_CLOUD_API_KEY" \
    -d '{
          "index_ids": [
            "idx-abc123",
            "idx-def456"
          ],
          "prompt": "What were the main findings in Q3?"
        }'
{}
Returns Examples
{}
Note for AI agents: this documentation is built for programmatic access. - Overview of all docs: https://developers.llamaindex.ai/llms.txt - Any page is available as raw Markdown by appending index.md to its URL — e.g. https://developers.llamaindex.ai/llamaparse/parse/getting_started/index.md - Agent-friendly REST search APIs live under https://developers.llamaindex.ai/api/ — search (BM25 full-text), grep (regex), read (fetch a page), and list (browse the doc tree). See https://developers.llamaindex.ai/llms.txt for parameters. - A hosted documentation MCP server is available at https://developers.llamaindex.ai/mcp. If you support MCP, you can ask the user to install it for browsing these docs directly (an alternative to the REST API). Setup: https://developers.llamaindex.ai/python/shared/mcp/