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Testnet Zeroone Subnet

Add Testnet Zeroone Subnet to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Testnet
Chain ID: 56400·Symbol: ZERO

Testnet Zeroone Subnet is an EVM-compatible blockchain with Chain ID 56400 and native token ZERO. This page lets you add Testnet Zeroone Subnet to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://subnets.avax.network/testnetzer/testnet/rpc

Block Explorer

TESTNETZER Explorer

What is Testnet Zeroone Subnet?

Testnet Zeroone Subnet 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 Testnet Zeroone Subnet once you add the network configuration.

Why do you need to add Testnet Zeroone Subnet to your wallet?

MetaMask and most wallets only come pre-configured with Ethereum Mainnet. To transact, swap tokens, or use dApps on Testnet Zeroone Subnet, 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 Testnet Zeroone Subnet 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 Testnet Zeroone Subnet network.

  2. 2

    Confirm in your wallet

    Your wallet shows the Testnet Zeroone Subnet network details: Chain ID 56400, native token ZERO. 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 Testnet Zeroone Subnet. You can start transacting right away — you will need ZERO to pay gas fees.

Testnet Zeroone Subnet network technical details

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

NameTestnet Zeroone Subnet
Chain ID56400
Native tokenZERO
Decimals18
RPC Endpointhttps://subnets.avax.network/testnetzer/testnet/rpc
Block Explorerhttps://subnets-test.avax.network/testnetzer

Important notice

  • •Always verify Chain ID 56400 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need ZERO tokens in your wallet to pay gas fees for transactions on Testnet Zeroone Subnet
  • •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 Testnet Zeroone Subnet 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 Testnet Zeroone Subnet Chain ID?▾
The Chain ID of Testnet Zeroone Subnet is 56400. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need ZERO tokens to use Testnet Zeroone Subnet?▾
Yes. Every transaction on Testnet Zeroone Subnet requires ZERO to pay gas fees. You can purchase ZERO on exchanges and bridge it to Testnet Zeroone Subnet, or use a faucet if this is a testnet.
What is the Testnet Zeroone Subnet RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the Testnet Zeroone Subnet blockchain — sending transactions, reading balances, and checking state. One popular Testnet Zeroone Subnet RPC is https://subnets.avax.network/testnetzer/testnet/rpc. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says Testnet Zeroone Subnet already exists when I click Add — what do I do?▾
That's completely normal. If Testnet Zeroone Subnet is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added Testnet Zeroone Subnet 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.