We've recently released the OpenFood API V3 – this is a stable version that we expect to support for a very long time. V1 was designed mostly for internal use; V2 was designed for public use; but given excellent feedback during the latest Open Food Hackdays, we quickly realized that we needed to rethink our approach. The result of this process is V3.
You can try it out yourself by getting an API key and taking a look at the documentation. We've also published a number of examples and will extend this section quite a bit in the near future. Last but not least if you are developer please subscribe to the OpenFood Developer Newsletter to stay informed about the latest developments.
We're looking forward to see what the community builds with it!