> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-fix-review-b20-doc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Connecting to Base

> Network details and wallet setup for Base Mainnet, Base Testnet (Sepolia), and Base Vibenet.

export const AddToMetaMask = ({chainId, chainName, rpcUrl, blockExplorer}) => {
  const addNetwork = async () => {
    if (typeof window === 'undefined' || !window.ethereum) {
      alert('MetaMask is not installed. Visit metamask.io to get started.');
      return;
    }
    try {
      await window.ethereum.request({
        method: 'wallet_addEthereumChain',
        params: [{
          chainId: '0x' + Number(chainId).toString(16),
          chainName,
          nativeCurrency: {
            name: 'Ether',
            symbol: 'ETH',
            decimals: 18
          },
          rpcUrls: [rpcUrl],
          blockExplorerUrls: [blockExplorer]
        }]
      });
    } catch (error) {
      console.error('Failed to add network:', error);
    }
  };
  return <button onClick={addNetwork} style={{
    display: 'inline-flex',
    alignItems: 'center',
    padding: '8px 16px',
    backgroundColor: '#0052FF',
    color: 'white',
    border: 'none',
    borderRadius: '8px',
    cursor: 'pointer',
    fontWeight: 600,
    fontSize: '14px'
  }}>
      Add {chainName}
    </button>;
};

Base is an EVM-compatible Layer 2 network. Use the details below to connect your wallet or application.

## Network details

<Tabs>
  <Tab title="Mainnet">
    |                     |                                              |
    | :------------------ | :------------------------------------------- |
    | **Network Name**    | Base Mainnet                                 |
    | **RPC Endpoint**    | [mainnet.base.org](https://mainnet.base.org) |
    | **Chain ID**        | 8453                                         |
    | **Currency Symbol** | ETH                                          |
    | **Block Explorer**  | [basescan.org](https://basescan.org)         |
  </Tab>

  <Tab title="Sepolia (Testnet)">
    |                     |                                                      |
    | :------------------ | :--------------------------------------------------- |
    | **Network Name**    | Base Sepolia                                         |
    | **RPC Endpoint**    | [sepolia.base.org](https://sepolia.base.org)         |
    | **Chain ID**        | 84532                                                |
    | **Currency Symbol** | ETH                                                  |
    | **Block Explorer**  | [sepolia.basescan.org](https://sepolia.basescan.org) |
  </Tab>

  <Tab title="Vibenet">
    Vibenet is Base's experimental preview network where new chain-level features are available before they roll out to Sepolia or Mainnet. It currently hosts [B20 tokens](/get-started/launch-b20-token) — an ERC-20 superset with built-in roles, supply caps, pausing, policy gating, and `permit` implemented as a native precompile.

    Use Vibenet to build against cutting-edge Base features. It is not intended for production or user-facing applications. Learn more at [vibes.base.org](https://vibes.base.org).

    |                     |                                                            |
    | :------------------ | :--------------------------------------------------------- |
    | **Network Name**    | Base Vibenet                                               |
    | **RPC Endpoint**    | [rpc.vibes.base.org](https://rpc.vibes.base.org)           |
    | **Chain ID**        | 84538453                                                   |
    | **Currency Symbol** | ETH                                                        |
    | **Faucet**          | [faucet.vibes.base.org](https://faucet.vibes.base.org)     |
    | **Block Explorer**  | [explorer.vibes.base.org](https://explorer.vibes.base.org) |
  </Tab>
</Tabs>

<Info>
  The public endpoints above are rate-limited and not suitable for production traffic. For production use, connect through a [node provider](/base-chain/node-operators/node-providers).
</Info>

<Note>
  The public Base endpoints are **HTTP only**. WebSocket RPC connections (`eth_subscribe`, `newHeads`, `logs`) are not available on public Base endpoints — use a [node provider](/base-chain/node-operators/node-providers) such as Alchemy or QuickNode for WebSocket support.
</Note>

## Wallet setup

<Tabs>
  <Tab title="Coinbase Wallet">
    [Coinbase Wallet](https://chrome.google.com/webstore/detail/coinbase-wallet-extension/hnfanknocfeofbddgcijnmhnfnkdnaad?hl=en) supports Base networks by default.

    **Mainnet**

    1. Open the Coinbase Wallet extension and log in.
    2. Connect to your app.
    3. Click the network icon in the upper right corner.
    4. Select **Base**.

    **Base Sepolia**

    1. Open the Coinbase Wallet extension and log in.
    2. Connect to your app.
    3. Click the network icon in the upper right corner.
    4. Click **More networks** and go to the **Testnets** tab.
    5. Select **Base Sepolia**.
  </Tab>

  <Tab title="MetaMask">
    Click a button to automatically add a Base network to [MetaMask](https://metamask.io):

    <div style={{ display: 'flex', flexDirection: 'row', flexWrap: 'wrap', gap: '8px', marginTop: '12px' }}>
      <AddToMetaMask chainId="8453" chainName="Base Mainnet" rpcUrl="https://mainnet.base.org" blockExplorer="https://basescan.org" />

      <AddToMetaMask chainId="84532" chainName="Base Sepolia" rpcUrl="https://sepolia.base.org" blockExplorer="https://sepolia.basescan.org" />

      <AddToMetaMask chainId="84538453" chainName="Base Vibenet" rpcUrl="https://rpc.vibes.base.org" blockExplorer="https://explorer.vibes.base.org" />
    </div>

    To add a network manually, use the details from the [Network details](#network-details) section above.
  </Tab>

  <Tab title="Other EVM wallets">
    Base can be added as a custom network to any EVM-compatible wallet. Use the connection details from the [Network details](#network-details) section above.
  </Tab>
</Tabs>