# Function How to use tool-type function Created: April 29, 2025 ## Description A tool-type function allows AI agents to make API requests to your backend or to an n8n workflow automation system. ## What is a tool-type function A tool-type function is designed to make API requests to either your server or the n8n workflow automation system. When defining this function, you provide the following details: - Name: The identifier for the tool or function. - Description: A summary of the tool's purpose and intended operation. - Method: The HTTP method to be used, such as GET or POST. Edit Tool  This example demonstrates how to retrieve the AI models available for testing from our API. It is accompanied by a screenshot to guide users visually through the process. To use this feature, first add the tool to the tools menu. When needed, press the `` ` `` key to open a menu displaying the selected tools. This is the result, providing you with the ability to utilize and call the tool effectively. New Agent