How to Add a Custom Remote Procedure Call (RPC) to OKX Wallet

Adding a custom Remote Procedure Call (RPC) to your OKX Wallet unlocks access to a broader range of blockchain networks beyond those pre-integrated into the wallet. Whether you're a developer testing smart contracts or an enthusiast exploring emerging EVM-compatible chains, understanding how to configure a custom RPC connection is essential for maximizing your Web3 experience.

An RPC—short for Remote Procedure Call—acts as a communication bridge between your wallet and a specific blockchain network. By default, OKX Wallet supports major networks like Ethereum, BNB Chain, and Polygon. However, many niche chains, private testnets, or new Layer 1 blockchains may not be listed. This is where adding a custom RPC becomes invaluable.

With this feature, you can manually connect your OKX Web3 Wallet to virtually any EVM-compatible blockchain, including test environments, sidechains, or experimental networks. Below, we’ll walk you through the step-by-step process for both the mobile app and browser extension versions of OKX Wallet.

Why Add a Custom RPC?

Before diving into setup steps, it’s important to understand why you might need a custom RPC:

• Access testnets: Developers often use testnets like Sepolia or Mumbai to deploy and test dApps without spending real funds.
• Explore new chains: Emerging blockchains may not yet be supported by default in popular wallets.
• Use private networks: Enterprises or development teams sometimes run internal blockchains for testing.
• Maximize interoperability: Connecting to multiple chains allows seamless interaction with cross-chain protocols.

👉 Discover how easy it is to connect to new blockchains with OKX Wallet.

Core Keywords

To ensure optimal search visibility and relevance, here are the core keywords naturally integrated throughout this guide:

• Custom RPC
• OKX Wallet
• Remote Procedure Call
• Web3 Wallet
• EVM-compatible chains
• Add network to wallet
• Blockchain connectivity
• Testnet setup

These terms reflect common search queries from users seeking guidance on expanding their wallet's network capabilities.

How to Add a Custom RPC on Mobile App

If you're using the OKX Wallet mobile application, follow these straightforward steps:

1. Open the OKX Web3 Wallet app on your smartphone.
2. At the top of the main wallet screen, tap the network dropdown menu (e.g., currently showing "Ethereum" or "BNB Chain").
3. Scroll down and select Custom or Add Network, depending on your interface version.

4. You'll now be prompted to enter the required network details:

   • Network Name: Enter a recognizable name (e.g., “My Testnet”).
   • RPC URL: Input the HTTPS endpoint provided by the blockchain team (e.g., https://testnet.examplechain.io).
   • Chain ID: A unique numeric identifier (e.g., 80001 for Polygon Mumbai).
   • Currency Symbol (optional): Typically ETH, TEST, or the native token symbol.
   • Block Explorer URL (optional): Link to view transactions (e.g., https://testnet.examplechain.io/explorer).
5. After filling in the fields, tap Confirm or Save.

Once saved, the new network will appear in your network list and can be selected at any time.

How to Add a Custom RPC on Browser Extension

For desktop users leveraging the OKX Wallet browser extension (available on Chrome, Firefox, etc.), the process is nearly identical:

1. Log in to your OKX Wallet extension.
2. In the top-left corner of the interface, click the network selector (shows current network like Ethereum Mainnet).
3. Choose Add Network from the dropdown menu.

4. Fill in the following details:

   • Network Name: Assign a clear label for easy identification.
   • New RPC URL: Must be a valid HTTPS address—never use HTTP for security reasons.
   • Chain ID: Ensure accuracy; incorrect IDs can cause transaction failures.
   • Currency Symbol: Optional but recommended for clarity.
   • Block Explorer URL: Optional; enables direct transaction tracking within the wallet.
5. Click Save or Add to finalize.

Your custom network will now be available alongside other supported chains.

Important Tips When Adding a Custom RPC

While the process is simple, accuracy and security are critical:

Always verify RPC endpoints from official sources—such as the blockchain’s documentation or GitHub repository. Untrusted RPC URLs could expose your activity to third parties or lead to phishing attacks.

• ✅ Use only HTTPS-based RPC URLs
• ✅ Double-check Chain ID against official references
• ✅ Avoid public or unsecured nodes unless testing
• ✅ Save backup notes of added networks

You can edit or remove custom RPCs later under Network Settings if a chain changes its configuration or is no longer needed.

👉 Securely expand your wallet’s reach across EVM-compatible networks today.

Frequently Asked Questions (FAQ)

What is a Remote Procedure Call (RPC) in crypto wallets?

An RPC (Remote Procedure Call) is a protocol that allows your wallet to send and receive data from a blockchain node. It enables actions like checking balances, sending transactions, and interacting with dApps by communicating with the network’s backend infrastructure.

Can I add any blockchain as a custom RPC?

You can add any EVM-compatible blockchain that provides a public or private RPC endpoint. Non-EVM chains (like Solana or Bitcoin) cannot be added this way since they use different architectures.

Is adding a custom RPC safe?

Yes—if done correctly. Only use RPC URLs from trusted sources. Malicious nodes could potentially track your transaction patterns or display inaccurate data. Stick to official chain documentation when sourcing endpoints.

Why isn’t my custom network working after setup?

Common issues include:

• Incorrect Chain ID
• Invalid or unreachable RPC URL
• Network requiring specific token approvals

Double-check all inputs and consult the blockchain’s official support channels if problems persist.

Can I delete or modify a custom RPC later?

Yes. Within OKX Wallet settings, navigate to Networks > Custom Networks, where you can edit or remove previously added RPC configurations.

Do I need technical knowledge to add a custom RPC?

Basic familiarity with blockchain concepts helps, but the process itself is user-friendly. As long as you have the correct network details (usually provided by the chain’s team), anyone can complete the setup.

Final Thoughts

Adding a custom RPC to your OKX Wallet empowers you to explore the full breadth of the Web3 ecosystem—from cutting-edge Layer 2 solutions to experimental testnets. Whether you're building decentralized applications or simply curious about new chains, this functionality enhances flexibility and control over your digital asset interactions.

As more blockchains emerge and evolve, being able to manually configure network connections ensures you stay ahead of the curve without waiting for official integrations.

👉 Start connecting to new blockchains securely with OKX Wallet now.

By mastering custom RPC setup, you unlock greater autonomy in your Web3 journey—making your wallet not just a storage tool, but a gateway to innovation across EVM-compatible ecosystems.