Skip to content

Stream Messages

JsonElement Beta.Chat.Stream(ChatStreamParamsparameters, CancellationTokencancellationToken = default)
POST/api/v1/chat/{session_id}/messages/stream

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

ParametersExpand Collapse
ChatStreamParams parameters
required string sessionID

Path param

required IReadOnlyList<string> indexIds

Body param: Indexes to retrieve data from.

required string prompt

Body param: User message for this chat turn.

maxLength1000
string? organizationID

Query param

formatuuid
string? projectID

Query param

formatuuid

Stream Messages

ChatStreamParams parameters = new()
{
    SessionID = "session_id",
    IndexIds =
    [
        "idx-abc123", "idx-def456"
    ],
    Prompt = "What were the main findings in Q3?",
};

var response = await client.Beta.Chat.Stream(parameters);

Console.WriteLine(response);
{}
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/for-agents/mcp/ - Other LlamaIndex tooling for agents — the LlamaParse Platform MCP server, agent skills and plugins, and the n8n node — is mapped at https://developers.llamaindex.ai/for-agents/