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@martijn.rats The eikonapir package was a community package which I believe is no longer being worked on or maintained. One of our very talented customers has built an excellent R library for their own use - but has very kindly open-sourced it. It uses our python Eikon Data API and R interop via reticulate. Additionally, it has support for Datastream in R and also more recently R support for Refinitiv Data Platform is also added. You can find it here. I would recommend you use this excellent package instead. I hope this can help.