Conductor enables you to integrate QuickBooks Desktop/Enterprise with a modern API and fully-typed SDKs. Used by Ramp! After three years of syncing data for 1,000+ business, we've polished our system to handle every edge case and obscure error, handling hundreds of little annoyances. Without Conductor, you'd be stuck trying to interface with QuickBooks Desktop's archaic SOAP-based qbXML, trying to parse opaque QuickBooks Web Connector errors, making sense of freezes and crashes, and more.