> ## Documentation index
> Fetch the complete documentation index at: https://dify-docs.docs7.io/llms.txt
> Ask it with GET https://dify-docs.docs7.io/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.

# Tool Node

> Connect to external services and APIs

Add [Dify tools](/en/cloud/use-dify/workspace/tools) to your workflows as standalone nodes. 

This lets your workflows interact with external services and APIs to access real-time data and perform actions, like web searches, database queries, or content processing.

**To add and configure a tool node**:

1. On the canvas, click **Add Node** > **Tools**, then select an action from an available tool.

2. Optional: If a tool requires authentication, select an existing credential or create a new one.

    <Info>
      To change the default credential, go to **Integrations** > **Tools** > **Tool Plugin**.
    </Info>

3. Complete any other required tool settings.