There isn't one. It's a private club if you like. Toyodiy published a full parts EPC for every Toyota ever made. Mr T got a bit uppity about that and threatened them. To combat this, TOYO went all dark web on them and made it a by invitation only site. You can see the main parts drawing titles but not the drawings themselves. It's a great site and you can cross reference parts - so the air filter on an avensis is the same as one off say a corolla. It lists variants etc and includes rough Euro prices. Takes a bit of navigating sometimes as the drawing title might say something like front brake drums assembly when they're actually discs, but there are pretty pictures to guide you.
I bet I know what your next question is going to be ....