GEN Faucet contract can be seen on explorer.
You can call this faucet also via rest API: GET /api/drip?to=your-address
GET /api/drip?to=your-address
If you have some unspent GEN, please, send them back to GEN Faucet address: 0x313a161dA054724d743dc367D5ACA1DCd1eCa9aB
Dripping can take some time in order for transaction to be verified (10 seconds is normal).
To Add this network to MetaMask, Networks → Custom RPC and enter these values