I am looking for a data base, which reports paralogs for (human) genes, for instance like GeneCards does. I already wrote a webpage crawler to access this information, but it takes way too long for the amount of genes I have. Data bases like Duplicated Genes DB or Ensemble provide such information, but they are either not focusing on paralogs or the available information is quite sparse. Gene Cards has its information from Genes Like me, which I would like to access via R/ Python or any other script. Do you know if something like this is available or just a plain data base, where I could download such a information as CSV file?