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You can access the desired API via custom actions, which are called on a specific event, such as onClick.
  1. Adding a custom action to FormBuilder props: 
    <FormBuilder
  actions={{
    callMyApi: ActionDefinition.functionalAction((e, args) => {
      const {param1, param2, param3} = args
      MyApi.call(param1, param2, param3)
    }, {
      param1: 'string',
      param2: 'boolean',
      param3: 'number'
    })
  }}
/>
  2. Adding a custom action to a component in the editor: Access external API 01
  3. Setting the action parameters: Access external API 02
Last modified on April 16, 2026