> ## Documentation Index
> Fetch the complete documentation index at: https://metalayerlabs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Using Blast

## Mainnet

Blast Mainnet can be added as a custom network to any EVM-compatible wallet (i.e. [MetaMask](https://metamask.io)).

### Public RPC Endpoints

1. [https://rpc.blast.io](https://rpc.blast.io)
2. [https://blastl2-mainnet.public.blastapi.io](https://blastl2-mainnet.public.blastapi.io)
3. [https://blast.din.dev/rpc](https://blast.din.dev/rpc)
4. [https://blast.blockpi.network/v1/rpc/public](https://blastl2-mainnet.public.blastapi.io)

### MetaMask Quick Instructions

To add Blast Mainnet as a custom network to MetaMask:

1. Go to the Blast Explorer at [blastscan.io](https://blastscan.io).
2. Scroll to the bottom and click the **Add Blast Mainnet** button in the footer.
3. Approve adding the network in the MetaMask prompt that opens.

### MetaMask Manual Instructions

To add Blast 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 for Blast Mainnet.
   <div>Network Name: **Blast**</div>
   <div>RPC Endpoint: [https://rpc.blast.io](https://rpc.blast.io)</div>
   <div>Chain ID: **81457**</div>
   <div>Currency Symbol: **ETH**</div>
   <div>Block Explorer: [https://blastscan.io](https://blastscan.io)</div>
6. Tap the Save button to save Blast Mainnet as a network.

You should now be able to connect to the Blast Mainnet by selecting it from the network

## Testnet

Blast Sepolia can be added as a custom network to any EVM-compatible wallet (i.e. [MetaMask](https://metamask.io)).

### MetaMask Quick Instructions

To add Blast Sepolia as a custom network to MetaMask:

1. Go to the Blast Testnet Explorer at [sepolia.blastexplorer.io](https://sepolia.blastexplorer.io).
2. Scroll to the bottom and click the **Add Blast Testnet Sepolia Network** button in the footer.
3. Approve adding the network in the MetaMask prompt that opens.

### MetaMask Manual Instructions

To add Blast Sepolia 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 for the Blast Sepolia testnet.
   <div>Network Name: **Blast Sepolia**</div>
   <div>RPC Endpoint: [https://sepolia.blast.io](https://sepolia.blast.io)</div>
   <div>Chain ID: **168587773**</div>
   <div>Currency Symbol: **ETH**</div>
   <div>Block Explorer: [https://sepolia.blastexplorer.io](https://sepolia.blastexplorer.io)</div>
6. Tap the Save button to save Blast Sepolia as a network.

You should now be able to connect to the Blast testnet by selecting it from the network selection dropdown menu.