i figure it's galvanized pipe.
if it's lead you could whittle it with a pocket knife.
before monkeying around with a main, test the floor drain and sump pump and curbside shutoff, you will need them standing by.
try mixing up some 2-part epoxy putty and wrapping it onto the leak as tightly as possible with rubber stretch sticks to itself expensive tape.
galvanized has a tendency to heal its own drips overhead, but you may have a rusted away line at the concrete.
the leak is on the free side of the meter, but start planning fro a new main to the curbside shutoff. if it's actually lead you'll be replacing it entirely to the street main with a new curbside shutoff. or whatever your city may require.
you may run a drinking water quality white hose from the friendly neighbor's to your hose sillcock thru a double female adapter or a washing machine double female. with your main off you'll be using the neighbor's water as long as it doesn't freeze. we've put these temporary hoses in 2" pvc to keep them warmer in cold weather but usually still have to trickle the water thru them so the water won't freeze.