To fund an AEA for testing on a test-net you need to request some test tokens from a faucet.
First, make sure you have installed the crypto plugin of the target test-net. E.g. for Ethereum:
pip install open-aea-ledger-ethereum
Add a private key to the agent
aea generate-key ethereum
aea add-key ethereum ethereum_private_key.txt
If you already have keys in your project, the commands will prompt you for confirmation whether or not to replace the existing keys.
Using a faucet website
First, print the address:
aea get-address ethereum
This will print the address to the console. Copy the address into the clipboard and request test tokens from the faucet here for Ethereum. It will take a while for the tokens to become available.
Second, after some time, check the wealth associated with the address:
aea get-wealth ethereum
Using the CLI
Simply generate wealth via the CLI:
aea generate-wealth ethereum