Create Records form json in apex

// Get the static resource name and path for the JSON file
String resourceName = 'insert_static_resource_name_here';
String resourcePath = '/resource/' + resourceName;

// Read the JSON file from the static resource
String jsonString = System.resource.getResourceAsString(resourcePath);

// Deserialize the JSON string into a list of custom objects
List<Account__c> newAccounts = (List<Account__c>) JSON.deserialize(jsonString, List<Account__c>.class);

// Insert the new records into Salesforce
insert newAccounts;