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What is a tool in AI?#

In AI, 'tools' has a specific meaning. Tools act like addons that your AI can use to access extra context or resources.

Here are a couple of other ways of expressing it:

Tools are interfaces that an agent can use to interact with the world (source)

We can think of these tools as being almost like functions that your AI model can call (source)

Tools in n8n#

n8n provides tool sub-nodes that you can connect to your AI agent. As well as providing some popular tools, such as Wikipedia and SerpAPI, n8n provides two especially powerful tools:

The next three examples highlight the Custom n8n Workflow Tool: