Illustration of open-rfc connecting Node.js to SAP without native SDK dependencies, showing macOS, Linux, Windows, and SAP BTP through Cloud Connector

Introducing open-rfc: Calling SAP RFC from Node.js Without the SDK

If you ever wanted to call a remote-enabled ABAP function module from JavaScript or Node.js, you probably discovered quite quickly that this is not as easy as it sounds. There is an RFC protocol. There are remote-enabled function modules. There is an npm package called node-rfc. So you would expect to install the package, add the connection details, and make the call. But npm install node-rfc was never the complete setup. ...

August 10, 2026 · 12 min · 2508 words · Marian Zeis
ARC-1 version 1.0 release cover showing the enterprise-ready open-source ADT MCP connected to ECC, S/4HANA, BTP ABAP Environment, and S/4HANA Cloud Public Edition.

ARC-1 1.0: One Deployment, Multiple SAP Systems

ARC-1 1.0 is here. When I published the first ARC-1 post, I explained why I built an MCP server for ABAP development and why security has to be part of it from the beginning. This post is not another deep dive into every tool. The release notes already do that. For version 1.0 I want to focus on what really changed: ARC-1 became more stable, it can serve multiple SAP systems from one BTP deployment, the BTP and security setup is much better documented, and the project is no longer only one repository. ...

August 3, 2026 · 12 min · 2428 words · Marian Zeis