Open Web UIInstall

Summary

Send a new message to a specified channel by ID in the Open Web UI system.

Inputs

• id (required) — The unique identifier of the channel to which the message will be posted.
• content (required) — The text content of the message to be sent.
• parent_id — The ID of the parent message if this message is a reply (optional).
• data — Additional JSON object data associated with the message (optional).
• meta — Additional JSON object metadata for the message (optional).
• skipAuthentication — Boolean flag to skip authentication; when false, Open WebUI Auth is used.

Output shape

a single JSON object representing the posted message response from the Open Web UI API

The response content depends on the Open Web UI API's message posting endpoint; the request requires a valid channel ID and message content. Authentication is required unless explicitly skipped.

Links

• n8n community nodes installation guide