description: How to connect to the Kovan testnet, Nile testnet and other Ocean-related networks.
---
## Connect to the Kovan Testnet
Most Ethereum wallets and libraries know how to connect to the [Kovan Testnet](/concepts/testnets/#the-kovan-testnet). In MetaMask, click on the network name then click on "Kovan Test Network" in the drop-down list.
If you're using [Barge](https://github.com/oceanprotocol/barge) to run a local Kovan node, you can connect to that local Kovan node at RPC URL [http://localhost:8545](http://localhost:8545) (called "Localhost 8545" in MetaMask).
## Connect to the Nile Testnet
Here are the parameters you might need to connect to the [Nile Testnet](/concepts/testnets/#the-nile-testnet):
In MetaMask, click on the network name then click on `Custom RPC` in the drop-down list. Scroll down to the `New Network` section. Enter the above RPC URL. You don't need to add a port number to the end of the RPC URL. Enter the ChainID, Symbol and Nickname if you like. See the [MetaMask docs about how it uses the ChainID](https://metamask.github.io/metamask-docs/Main_Concepts/Sending_Transactions).
If you're using [Barge](https://github.com/oceanprotocol/barge) to run a local Nile node, you can connect to that local Nile node at RPC URL [http://localhost:8545](http://localhost:8545) (called "Localhost 8545" in MetaMask). You can configure that local Nile node by editing the files in the `barge/networks/nile/config/` directory.
## Connect to a Local Spree Testnet or Ganache-Based Testnet
When using [Barge](https://github.com/oceanprotocol/barge) to run a purely-local testnet (Spree or Ganache-based), you can connect to a local node at RPC URL [http://localhost:8545](http://localhost:8545) (called "Localhost 8545" in MetaMask).
