Our company has a customer that is looking into using Odoo for their inventory, warehousing  and other ERP needs. We would need to develop a solution that pushes data to Odoo from our software (a C++/QT desktop application). We do that for other customers that are using other ERP's through their ERP's REST API's. Does such standard API's not exist for Odoo inventory? In the documentation and forums I can only see information about RPC, or people creating custom REST API's in their own modules. We do not want to have to develop nor extend modules unless there is no other solution, we just need to push data to the inventory module from an external application, and it seems strange to me if there is no API available to do this by standard.

Thanks in advance for any suggestions or hints.