Custom Actions are powerful building blocks that enable you to create custom functionality while leveraging existing tool authentication.

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Creating a Custom Action with Authentication

1

Install Dependencies

2

Import necessary modules & initialize them

3

Creating a custom action

Below are examples of creating a custom action called list_repositories (Python) & star_repo (JavaScript) that integrates with the github tool.

You need to add the action, input parameters & return content description, this is what the LLM will use to understand the action.

The execute_request/executeRequest method is used to make API calls, it accepts the following arguments:

  • endpoint: Endpoint URL. The base URL of the API will be prepended to this. You can find it in your connection’s Connection Info section
  • method: HTTP method to use
  • body: Request body to pass to the API
  • parameters: Custom Authentication Parameters
  • connection_id: ID of the connected account

Since github is a registered tool in Composio, the authentication credentials are automatically injected into your custom action!

4

Executing the Custom Action

Executing the custom action using LLM. Learn how to execute the custom action without LLM here.

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Why Use Custom Actions?

Custom Actions provide several advantages:

  • Data privacy: Execution happens on the user’s machine, ensuring sensitive data doesn’t leave the local environment.
  • Flexibility: Users can create and customize as many tools and actions as needed.
  • Compatibility: Custom actions can be integrated seamlessly across various Composio-supported platforms.

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