If you want to interact with an Ethereum-based network that supports Ocean Protocol, then you'll eventually need Ether or Ocean Tokens _for that network_. (Every Ethereum-based network has its own Ether and its own Ocean Tokens, and you can't use those in other networks.)
At the time of writing, there were some public testnets you could use to test an Ocean Protocol application. For more information about those, see the page about [testnets](/concepts/testnets/).
You will need a [wallet that can hold Ether (for any Ethereum network) and Ocean Tokens (for any Ethereum network)](/concepts/wallets/). For the purpose of this tutorial, you can use MetaMask. See [our tutorial about how to set up MetaMask](/tutorials/metamask-setup/).
You can get Kovan Ether (KEth), for the Kovan Testnet, from a Kovan faucet: see [the official list of Kovan faucets](https://github.com/kovan-testnet/faucet). You have to give the faucet your Kovan address (wallet account address). You can get that from MetaMask. It's a string that looks like:
If you're running a local Ganache-based testnet, then it creates several accounts at network launch time, and gives each of them some Ether. The addresses and private keys of those accounts should be shared (to logs or the console) during the launch process. You can use those accounts and their Ether.
curl --data '{"jsonrpc":"2.0","method":"personal_sendTransaction","params":[{"from":"0x00Bd138aBD70e2F00903268F3Db08f2D25677C9e","to":"<YOURADDRESS>","value":"0x7FFFFFFFFFFFFFFFFFF"}, "node0"],"id":0}' -H "Content-Type: application/json" -X POST localhost:8545
```
That command uses [Ethereum's JSON RPC API](https://wiki.parity.io/JSONRPC.html). You can also create a new account using the Parity Ethereum CLI. See [the Parity Ethereum CLI documentation](https://wiki.parity.io/CLI-Sub-commands).
One way to get some Ocean Tokens, for the network you're connected to, is by running Pleuston (a demo Ocean marketplace web app) and then clicking in the top right corner of the Pleuston user interface. If you see "Make it rain" then click that.
Running Pleuston, along with all the software it needs to work, is beyond the scope of this tutorial. If you want to do _that_, then the current best option is to use the scripts and Docker Compose files in the [🐳 barge repository](https://github.com/oceanprotocol/barge).