Can I get a Direct-Mount Frame Bag?

Yep, Rogue Panda can make a direct-mount frame bag!
When ordering your frame bag, go to Select Bag Attachments and change each tube to Bolt-On (if your frame has bolts on all 3 tubes):

If your frame doesn't have bolts on all 3 tubes, select either Hook and Loop or Lace-Up for the other tubes. Lace-up gives a nice clean look when combined with bolt-on attachments. Hook & Loop straps are easier to install and remove than laces, so this is better if you're installing/removing the frame bag or top tube bags frequently.