At the time of writing, attempting to run Claude Code on Termux works, however any background tasks involved will return an error similar to this:

EACCES: permission denied, mkdir '/tmp/claude/-data-data-com-termux-files-home/tasks'

The issue here is that Claude assumes that the user has permission to create files within /tmp which is not true for Termux.

While this should be fixed properly, you can use PRoot in the meantime as a workaround.

proot -b /data/data/com.termux/files/usr/tmp:/tmp claude

You’ll probably want to turn this into a shell alias/function for convenience.