IBM watsonx.ai Authenticator

This nodes authenticates with IBM watsonx.ai via the provided API key. The resulting authenticated connection can then be used to select chat and embedding models available in your IBM watsonx.ai project using the IBM watsonx.ai LLM Selector and IBM watsonx.ai Embedding Model Selector nodes.

Refer to IBM watsonx.ai for details on how to create an API key.

The API key must be provided to this node as the password of a credentials flow variable from the Credentials Configuration node.

Options

Credentials

IBM watsonx.ai API key

The credentials containing the IBM watsonx.ai API key in its password field (the username is ignored).

Connection configuration

Project or space

To provide context for chat completion or to use an embedding model, you must select a project or space. You can manage your projects and spaces in watsonx.ai Studio.

Available options:

  • Project: watsonx.ai Studio project to run the selected model.
  • Space: watsonx.ai Studio space to run the selected model.
Project name

Watson Studio project name to run the selected model.

Space name

Watson Studio space name to run the selected model

Base URL

The base URL for the IBM watsonx.ai API. Refer to the IBM watsonx.ai API documentation to view the list of available base URLs.

Validate API key

If set, the API key is validated during execution by fetching the available models.

Input Ports

This node has no input ports

Output Ports

Icon

Authentication for the IBM watsonx.ai API.

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Links

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Installation

To use this node in KNIME, install the extension KNIME Python Extension Development (Labs) from the below update site following our NodePit Product and Node Installation Guide:

v5.9

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland
Plugin version: 5.9.0.v202511131614
On NodePit since: 2025-12-11
Last update: 2026-01-13
Tags: Modern UI
KNIME versions: Since v5.5

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