Sage 50 offers both a desktop solution and a cloud-hybrid solution. The cloud-hybrid solution still requires installation of Sage 50 onto local computer that will be utilizing the software, and it also requires that a FULL COPY of the database reside on each local computer that will be utilizing the software; changes are they pushed-pulled between the remote computers, the cloud, and the host computer. As for API or other integrations with Sage 50, visit the Sage 50 Business Cloud Marketplace for some (not all) of the recommended integration solutions, https://us-marketplace.sage.com/en-us/home. There is also an SDK module available for those who wish to write their own integration solutions for Sage 50, although I can't put my hands on a current link for downloading it - you may want to reach out to Sage directly if interested in this solution. https://pcosupport.com 800-780-0700 or 954-961-0600

Termerins,

I cannot find a link to the Sage 50 API on the Business Cloud Marketplace (
Could you send a link to the Sage 50 API?

There is no open API for Sage 50. The link that I previously sent for the Sage 50 Business Cloud Marketplace is for companies that have written integrated solutions. The SDK is what you would be looking for, and you'll have to contact Sage directly for access to that as I can't find an online link.

Thank you!

Hi Andrew1986, to add onto this. Here's KB  112099 for the Sage 50—U.S. Edition: SDK Download Portal that lists the SDKs for:

• Download Sage 50—U.S. Edition 2021.0 SDK
• Download Sage 50—U.S. Edition 2021.1 SDK
• Download Sage 50—U.S. Edition 2022.0 SDK

Interested in becoming a development (ISV) partner?  Send a request to Sage

Hope this helps!
Erzsi