# Add Mode
## Mainnet
To add Mode Mainnet as a custom network to MetaMask:
1. Open the MetaMask browser extension.
2. Open the network selection dropdown menu by clicking the dropdown button at the top of the extension.
3. Click the **Add network** button.
4. Click **Add a network manually**.
5. In the **Add a network manually** dialog that appears, enter the following information:
You should now be able to connect to the Mode Mainnet by selecting it from the network selection dropdown menu.
## Testnet
#### MetaMask[](https://docs.base.org/using-base#metamask)
To add Mode Sepolia Testnet as a custom network to MetaMask:
1. Open the MetaMask browser extension.
2. Open the network selection dropdown menu by clicking the dropdown button at the top of the extension.
3. Click the **Add network** button.
4. Click **Add a network manually**.
5. In the **Add a network manually** dialog that appears, enter the following information:
| Name | Value |
| --------------- | --------------------------------------- |
| Network Name | Mode Sepolia |
| RPC Endpoint | |
| Chain ID | 919 |
| Currency Symbol | ETH |
| Block Explorer | |
6. Tap the Save button to save Mode Sepolia as a network.
You should now be able to connect to the Mode Sepolia testnet by selecting it from the network selection dropdown menu.