How to Add SEI Network to MetaMask

SEI Network is a high-performance Layer 1 blockchain tailored for trading-centric decentralized applications (dApps). Originally launched using the Cosmos SDK, SEI has expanded to support EVM compatibility, opening the door for Ethereum-based tools—like MetaMask—to connect with it. As this capability grows, many users are asking: How can I add SEI Network to MetaMask safely and correctly?

This guide offers a simple, step-by-step approach for integrating SEI into your MetaMask wallet, enabling access to SEI-based dApps and tokens.

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How to Add SEI Network to MetaMask

What Is SEI Network?

SEI Network is a Layer 1 blockchain focused on optimizing infrastructure for decentralized trading, DeFi protocols, and capital-efficient applications. Built using the Cosmos SDK, SEI offers high throughput and fast block finality, making it a popular choice for developers building trading apps.

To broaden accessibility, SEI has introduced EVM compatibility, allowing users to interact with the network via Ethereum-compatible tools like MetaMask. This makes it easier for users familiar with Ethereum to access the SEI ecosystem without switching wallets or learning new tools.

Why Add SEI to MetaMask

Adding SEI to MetaMask offers several practical benefits:

  • Access SEI-based dApps: Use your MetaMask wallet to connect to DeFi platforms, NFT marketplaces, or trading apps built on the SEI EVM layer.
  • Send and receive SEI tokens: Manage SEI-native tokens directly from your browser or mobile wallet.
  • Participate in DeFi: Stake, lend, swap, or farm assets within SEI-compatible decentralized finance applications.

Using MetaMask to access SEI provides a seamless experience for Ethereum users looking to explore new ecosystems.

How to Add SEI Network to MetaMask

To add SEI to your MetaMask wallet, follow these steps:

  1. Open MetaMask
    Launch your MetaMask browser extension or mobile app and unlock your wallet.
  2. Click the Network Dropdown
    At the top of MetaMask, click the dropdown showing your current network (e.g., “Ethereum Mainnet”).
  3. Select “Add Network” or “Add Network Manually.”
    In the network selection menu, scroll down and click “Add Network”.
  4. Enter SEI EVM-Compatible Network Details
    Input the SEI network information. Be sure to confirm these details from SEI’s official documentation or a trusted source like Chainlist.org. As a placeholder, typical EVM network values might look like:
    • Network Name: SEI EVM Testnet (or Mainnet, if live)
    • New RPC URL: https://evm-rpc.sei.io (example only)
    • Chain ID: 1329 (example only; verify accuracy)
    • Currency Symbol: SEI
    • Block Explorer URL (optional): https://seiscan.io (example only)
  5. Save the Network and Switch to It
    Click Save. MetaMask will automatically switch to the SEI network once added.
  6. Confirm SEI Is Now Visible in MetaMask
    You should now see SEI listed as the active network. You can also import SEI-based tokens using their contract addresses if needed.
What You’ll Need

Before adding SEI to MetaMask, ensure you have the following:

  • A MetaMask wallet (installed and set up on your browser or mobile device)
  • Access to official SEI network data, including the correct Chain ID and RPC URL
  • Basic knowledge of how to navigate MetaMask settings

Never copy RPC or network details from unverified sources. Doing so could expose your wallet to phishing risks or cause connection errors.

Connecting SEI Network to MetaMask is a simple process that allows you to explore SEI’s ecosystem of dApps and DeFi services using a familiar Ethereum-based wallet. Always make sure to verify the network parameters directly from SEI’s official resources to ensure you’re using accurate and safe information.

By following this step-by-step guide, even first-time users can confidently set up SEI in MetaMask and begin interacting with the network’s growing set of tools and applications.