How to Connect MetaMask to OKX Chain (OKC) Mainnet and Testnet – Complete Guide

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The OKX Chain (OKC) is a high-performance blockchain designed to support decentralized applications, token issuance, and smart contracts. Whether you're launching your own token or exploring dApps on the network, the first step is configuring your MetaMask wallet to interact with both the OKC Mainnet and OKC Testnet.

This guide walks you through the complete setup process in clear, easy-to-follow steps—no technical jargon, just actionable instructions. We'll also cover key SEO-optimized insights about OKC, wallet integration, and blockchain development trends for 2025.

Why Use OKX Chain?

Before diving into configuration, it's important to understand why developers and creators are turning to OKX Chain:

By connecting MetaMask to OKC, you gain access to this expanding decentralized landscape.

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Step-by-Step: Configure MetaMask for OKC Mainnet

Follow these steps to connect your MetaMask wallet to the OKC Mainnet:

  1. Open your MetaMask extension in your browser.
  2. Click on the network dropdown at the top (e.g., "Ethereum Mainnet").
  3. Select “Add Network”, then choose “Add a network manually”.

  4. Fill in the following details:

    Network Name: OKC Mainnet
New RPC URL: https://exchainrpc.okex.org
Chain ID: 66
Currency Symbol: OKT
Block Explorer URL: https://www.oklink.com/oec/
  5. Click “Save”.

👉 Learn how to launch your first token on an EVM-compatible chain today.

After saving, your wallet will switch to the OKC Mainnet. You can now send OKT, interact with dApps, or deploy smart contracts on the live network.

🔍 Tip: Always double-check the RPC URL and Chain ID to avoid phishing risks or lost funds.

Step-by-Step: Configure MetaMask for OKC Testnet

Testing your dApp or token logic before going live is crucial. The OKC Testnet allows you to simulate real-world conditions without spending real assets.

To set up the test environment:

  1. In MetaMask, click the network selector.
  2. Choose “Add Network” > “Add a network manually”.

  3. Enter the following parameters:

    Network Name: OKC Testnet
New RPC URL: https://exchaintestrpc.okex.org
Chain ID: 65
Currency Symbol: OKT
Block Explorer URL: https://www.oklink.com/oec-test/
  4. Click “Save”.

You’re now connected to the OKC Testnet. To get testnet tokens for transactions, use a faucet (more on this below).

👉 Discover tools and platforms that streamline blockchain testing and deployment.

Frequently Asked Questions (FAQs)

Q1: What is the difference between OKC Mainnet and Testnet?

The OKC Mainnet is the live blockchain where real economic value is transacted using OKT. The OKC Testnet is a sandbox environment that mirrors the mainnet but uses free test tokens. It’s used for development, debugging, and user testing before launching on the real network.

Q2: Where can I get free OKT test tokens?

You can obtain testnet OKT from official OKX developer faucets or community-run services. Search “OKC Testnet faucet” in trusted developer forums or GitHub repositories related to OKX Chain.

Q3: Is OKX Chain EVM-compatible?

Yes, OKX Chain is fully EVM-compatible, meaning you can use Ethereum-based tools such as MetaMask, Truffle, Hardhat, and Remix without modification. This makes migration and development significantly easier for Ethereum developers.

Q4: Can I use the same wallet address on both networks?

Yes. Your MetaMask wallet address remains the same across both the OKC Mainnet and Testnet. However, balances are not shared—testnet tokens have no value on the mainnet.

Q5: How do I verify transactions on OKC?

Use the official block explorer:

Enter your wallet address or transaction hash to view activity.

Q6: What should I do if MetaMask shows "Network Error"?

Ensure your RPC URL is correct and your internet connection is stable. Try switching to a different browser or clearing MetaMask cache. Also, verify that the Chain ID matches exactly (66 for mainnet, 65 for testnet).

Best Practices When Connecting Wallets to Custom Networks

  1. Never share your seed phrase – Legitimate networks never ask for it.
  2. Verify all network details – Fake RPC URLs are common attack vectors.
  3. Use bookmarks for explorers – Quickly check balances and transaction status.
  4. Test small amounts first – Before large transfers, confirm functionality with minimal value.
  5. Keep test and main accounts separate – Avoid accidental mainnet transactions during development.

Use Cases Enabled by OKC Integration

Once connected, you can:

Developers can leverage this infrastructure to create scalable Web3 experiences with lower costs than Ethereum.

👉 Start building on a high-performance EVM-compatible blockchain now.

Final Thoughts

Connecting MetaMask to the OKX Chain Mainnet and Testnet is a foundational step for anyone entering the world of decentralized development or digital asset creation. With its EVM compatibility, low fees, and strong infrastructure, OKC offers a compelling alternative to more congested networks.

By following this guide, you've securely configured your wallet and are now ready to explore dApps, launch tokens, or test smart contracts in a reliable environment.

Remember: always validate network details, keep your private keys secure, and use the testnet extensively before deploying anything live.

As blockchain adoption grows in 2025, platforms like OKX Chain will continue empowering innovators to build the next generation of decentralized solutions—efficiently and affordably.

✅ You've completed all necessary steps to connect MetaMask to OKC. Now it's time to build something amazing.