jetpack_forms_show_integration_iconsWhether to show integration icons in the UI. If set to false, the ActiveIntegrations component (editor sidebar) will be hidden and integration icons in the integrations modal will not be rendered.
jetpack_forms_show_block_integrationsWhether to show Integrations UI in the Form block editor.
jetpack_forms_show_dashboard_integrationsWhether to show Integrations UI in the Forms dashboard.
jetpack_forms_before_webhook_requestFilters the form data before sending it to the webhook. Allows developers to modify or augment the form data before it’s sent to the webhook endpoint. NOTE: data has to be the first argument so it can be defaulted.
jetpack_register_block_collectionShould all blocks get registered the Jetpack block collection in addition to their own categories?
jetpack_get_country_from_ipFilter to get country code from IP address.
jetpack_forms_hidden_field_valueFilter the value of the hidden field.
jetpack_forms_supported_integrationsFilters the list of supported integrations available in Jetpack Forms. Use this filter to add, modify, or remove integrations. Removing an integration here will prevent it from being returned by the REST integrations endpoints and from being displayed in the UI.
Jetpack Developer Resources 