Standard Library
Below is the API for the OCaml standard library. It's directly copied over from the OCaml Manual, formatted to the Reason syntax and styled accordingly. The API docs are work-in-progress; we'll be polishing these gradually!
If you're targeting JavaScript, the API docs for BuckleScript includes all of below, plus JS-specific APIs.
sig type in_channel type scanbuf = Scanf.Scanning.in_channel val stdin : Scanf.Scanning.in_channel type file_name = string val open_in : Scanf.Scanning.file_name -> Scanf.Scanning.in_channel val open_in_bin : Scanf.Scanning.file_name -> Scanf.Scanning.in_channel val close_in : Scanf.Scanning.in_channel -> unit val from_file : Scanf.Scanning.file_name -> Scanf.Scanning.in_channel val from_file_bin : string -> Scanf.Scanning.in_channel val from_string : string -> Scanf.Scanning.in_channel val from_function : (unit -> char) -> Scanf.Scanning.in_channel val from_channel : Pervasives.in_channel -> Scanf.Scanning.in_channel val end_of_input : Scanf.Scanning.in_channel -> bool val beginning_of_input : Scanf.Scanning.in_channel -> bool val name_of_input : Scanf.Scanning.in_channel -> string val stdib : Scanf.Scanning.in_channel end