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UPchain Mainnet

Add UPchain Mainnet to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Chain ID: 336666·Symbol: UBTC

UPchain Mainnet is an EVM-compatible blockchain with Chain ID 336666 and native token UBTC. This page lets you add UPchain Mainnet to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://rpc.uniport.network

Block Explorer

UPchain Mainnet Explorer

What is UPchain Mainnet?

UPchain Mainnet is an EVM (Ethereum Virtual Machine) compatible blockchain network. Any EVM wallet — MetaMask, Rabby, OKX Wallet, Trust Wallet, Coinbase Wallet — can connect and transact on UPchain Mainnet once you add the network configuration.

Why do you need to add UPchain Mainnet to your wallet?

MetaMask and most wallets only come pre-configured with Ethereum Mainnet. To transact, swap tokens, or use dApps on UPchain Mainnet, you need to add the network first. Entering an incorrect Chain ID or RPC can put your assets at risk. Use the "Add to wallet" button above — data sourced directly from chainid.network, the canonical Ethereum chain registry.

How to add UPchain Mainnet to your wallet

  1. 1

    Click Add to wallet

    Press the "Add to wallet" button above. MetaMask, OKX Wallet, Rabby Wallet or Trust Wallet will show a popup asking you to confirm adding the UPchain Mainnet network.

  2. 2

    Confirm in your wallet

    Your wallet shows the UPchain Mainnet network details: Chain ID 336666, native token UBTC. Verify the Chain ID is correct, then click "Approve" or "Add Network".

  3. 3

    Switch to the new network

    After confirming, your wallet automatically switches to UPchain Mainnet. You can start transacting right away — you will need UBTC to pay gas fees.

UPchain Mainnet network technical details

To add manually, go to Settings → Networks → Add Network in MetaMask (or your wallet's equivalent) and enter the details below:

NameUPchain Mainnet
Chain ID336666
Native tokenUBTC
Decimals18
RPC Endpointhttps://rpc.uniport.network
Block Explorerhttps://explorer.uniport.network

Important notice

  • •Always verify Chain ID 336666 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need UBTC tokens in your wallet to pay gas fees for transactions on UPchain Mainnet
  • •Data on this page is sourced from chainid.network — the community-verified Ethereum chain registry
  • •If the "Add to wallet" button doesn't work, your wallet may not support wallet_addEthereumChain — add the network manually using the details below

Frequently asked questions

Is it safe to add UPchain Mainnet to MetaMask?▾
Yes, if you use the "Add to wallet" button on this page. Data is sourced from chainid.network — the community-audited Ethereum registry. Adding a network does not expose your private key or grant any permissions to the dApp.
What is UPchain Mainnet Chain ID?▾
The Chain ID of UPchain Mainnet is 336666. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need UBTC tokens to use UPchain Mainnet?▾
Yes. Every transaction on UPchain Mainnet requires UBTC to pay gas fees. You can purchase UBTC on exchanges and bridge it to UPchain Mainnet, or use a faucet if this is a testnet.
What is the UPchain Mainnet RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the UPchain Mainnet blockchain — sending transactions, reading balances, and checking state. One popular UPchain Mainnet RPC is https://rpc.uniport.network. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says UPchain Mainnet already exists when I click Add — what do I do?▾
That's completely normal. If UPchain Mainnet is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added UPchain Mainnet but the network won't load — what's wrong?▾
The most common cause is a broken or overloaded RPC endpoint. Your wallet uses RPC to connect to the blockchain — if the RPC is down, the network won't load even if it was added correctly. Fix: copy a different RPC from the list above (prefer green low-latency ones), then go to Settings → Networks in your wallet and replace the old RPC with the new one. Watch the tutorial video above for step-by-step instructions on updating your RPC.