--- title: "Get Circuit Instance" url: https://docs.catalyst.zoho.com/en/sdk/javascript/v1/serverless/circuits/get-circuit-instance/ description: "This page describes the method to execute circuits in your application with sample code snippets." last_updated: 2026-09-09T10:45:38Z service: Serverless type: general related_links: - name: "Catalyst Serverless" url: /en/serverless/ - name: "Circuits Help" url: /en/serverless/help/circuits/introduction/ - name: "Java SDK" url: /en/sdk/java/v1/serverless/circuits/execute-circuit/ - name: "Python SDK" url: /en/sdk/python/v1/serverless/circuits/get-a-component-instance/ - name: "REST APIs" url: /en/api/code-reference/serverless/circuits/execute-circuit/#ExecuteCircuit repository: name: "Repository" url: https://github.com/catalystbyzoho/zcatalyst-sdk-js --- # Get Circuit Instance > **Note:** Ensure you have installed the [required package](https://docs.catalyst.zoho.com/en/sdk/javascript/v1/serverless/functions/overview/#prerequisites) to use this SDK method. You can get the `circuit` component reference as shown below. This will not fire a server-side call. You will refer to this component instance in various code snippets when working with the Circuits component. > **Note:** Circuits is currently not available to Catalyst users accessing from the EU, AU, IN, JP, SA, or CA data centers. ```javascript // Get a instance for Circuit const circuit = new Circuits(); ```