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

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Setting up a custom Remote Procedure Call (RPC) in your OKX Wallet unlocks access to blockchain networks beyond the default options. Whether you're a developer testing on a testnet, exploring niche EVM-compatible chains, or connecting to a private network, adding a custom RPC gives you the flexibility to interact with virtually any Ethereum Virtual Machine (EVM)-based ecosystem.

This guide walks you through everything you need to know about custom RPCs — what they are, why they matter, and how to add one seamlessly to your OKX Wallet, whether you're using the web extension or mobile app.

What Is a Custom RPC?

A Remote Procedure Call (RPC) is a protocol that enables your wallet — in this case, OKX Wallet — to communicate with a specific blockchain network. Think of it as a bridge between your wallet interface and the underlying blockchain, allowing you to send transactions, check balances, and interact with decentralized applications (dApps).

While OKX Wallet comes preloaded with major networks like Ethereum, BNB Chain, and Polygon, a custom RPC lets you manually connect to networks not included by default. This includes:

By configuring a custom RPC endpoint, you gain direct control over which blockchain your wallet interacts with — a powerful feature for advanced users and developers.

👉 Learn how to securely connect to any blockchain network in minutes.

Why Add a Custom RPC?

There are several compelling reasons to add a custom RPC to your OKX Wallet:

For developers and power users, custom RPC configuration is essential for full-stack blockchain interaction.

How to Add a Custom RPC on the OKX Web Extension

Follow these steps to manually add a custom network via the OKX Wallet browser extension:

  1. Open OKX Wallet
    Launch your browser and navigate to the OKX Wallet extension. Make sure you're logged in.
  2. Select Network Dropdown
    In the top-left corner of the wallet interface, click the current network name (e.g., Ethereum Mainnet).
  3. Choose “Add Network”
    From the dropdown menu, select Add Network at the bottom of the list.

  4. Enter Network Details
    Fill in the following fields carefully:

    • Network Name: A label for easy identification (e.g., “My Testnet”).
    • New RPC URL: The HTTPS endpoint provided by the blockchain (e.g., https://rpc.testnet.org).
    • Chain ID: A unique identifier for the network (e.g., 80001 for Polygon Mumbai).
    • Currency Symbol (optional): The native token symbol (e.g., MATIC, ETH).
    • Block Explorer URL (optional): A link to view transactions (e.g., https://mumbai.polygonscan.com).
  5. Save the Network
    Click Add or Save. The new network will now appear in your network selector.
🔒 Security Tip: Always verify RPC URLs from official sources. Malicious endpoints can compromise transaction data or expose sensitive information.

How to Add a Custom RPC in the OKX Mobile App

Adding a custom RPC on the mobile version is just as straightforward:

  1. Launch the OKX App
    Open the OKX application and go to Web3 Wallet.
  2. Tap the Network Selector
    At the top of the wallet screen, tap the current network display (e.g., BNB Chain).
  3. Select “Custom” or “Add Network”
    Choose the option to manually input network details.

  4. Enter Required Information
    Input the same details as above:

    • Network name
    • RPC URL
    • Chain ID
    • Token symbol (optional)
    • Block explorer URL (optional)
  5. Confirm and Save
    Tap Confirm or Save. You’ll now be able to switch to this network anytime.

Key Considerations When Using Custom RPCs

While custom RPCs offer flexibility, they come with responsibilities:

Some networks may require specific configurations or have rate-limited endpoints — consider using dedicated node services if performance becomes an issue.

👉 Connect to emerging blockchains safely and securely today.

Frequently Asked Questions (FAQ)

What is an RPC URL?

An RPC URL is an endpoint that allows your wallet to communicate with a blockchain node. It acts as a gateway for sending and receiving data from the network, such as transaction requests or balance queries.

Can I use a custom RPC on multiple devices?

Yes. However, you must manually configure the same RPC settings on each device — custom networks are not synced across platforms automatically.

Why is my custom network not working?

Common issues include:

Is it safe to add a custom RPC?

It can be — but only if you trust the source. Avoid third-party blogs or unverified forums. Use only official developer documentation or known infrastructure providers like Alchemy, Infura, or Ankr.

Can I edit a custom RPC after adding it?

Yes. In both the web and mobile versions of OKX Wallet, you can go to network settings and modify any saved custom network, including updating the RPC URL or Chain ID.

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 accurate network details from a reliable source, anyone can set it up.

Final Thoughts

Adding a custom RPC to your OKX Wallet is a simple yet powerful way to expand your Web3 capabilities. Whether you're building dApps, testing on testnets, or exploring new ecosystems, this feature gives you direct access to virtually any EVM-compatible chain.

With clear steps for both desktop and mobile platforms, and strong support for customization and security, OKX Wallet remains a top choice for developers and enthusiasts alike.

👉 Start exploring new blockchains with full control over your connections.

By following best practices — verifying sources, double-checking configurations, and starting small — you can safely unlock the full potential of decentralized networks across the crypto landscape.