Stream AI responses with optional RAG (Retrieval-Augmented Generation)
API key for authentication (lowercase header name)
Chat ID
Conversation messages
Model slug (e.g., gpt-4.1)
openai, anthropic, google, cohere, bedrock Organization ID - Required when using API Key authentication. Optional with session authentication (defaults to session's active organization).
Trigger type (e.g., submit-message)
Knowledge base IDs for RAG (optional)
Server-Sent Events stream
UI message stream events