There are 2 repositories under quickbooks-sync topic.
QuickBooks Desktop API for Python, Node.js, TypeScript, and REST
Sync Quickbooks Desktop
EasyQuickImport — Import transactions, invoices and bills into QuickBooks Desktop from Excel or CSV
QuickBook POS and QuickBook,QuickBooks using c#.net
This repository hosts sample scripts for LedgerScript, a JavaScript runtime designed for QuickBooks® Desktop.
Legal Firm which need CRM to track cases and client management using valid automation.