curl "http://www.openml.org/api/v1/task/list/limit/3000?api_key=c1994bdb7ecb3c6f3c8f3b35f4b47f1f" -H "Accept-Encoding: gzip, deflate"

library(httr)
content = GET(url = "http://www.openml.org/api/v1/task/list/limit/3000?api_key=c1994bdb7ecb3c6f3c8f3b35f4b47f1f", add_headers(`Accept-Encoding` = "gzip, deflate"))