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Quantum Sharded Network Testnet

Add Quantum Sharded Network Testnet to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Testnet
Chain ID: 99991·Symbol: tQSN

Quantum Sharded Network Testnet is an EVM-compatible blockchain with Chain ID 99991 and native token tQSN. This page lets you add Quantum Sharded Network Testnet to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://node.qsnchain.com/testnet/

Block Explorer

QSN Explorer

What is Quantum Sharded Network Testnet?

Quantum Sharded Network Testnet 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 Quantum Sharded Network Testnet once you add the network configuration.

Why do you need to add Quantum Sharded Network Testnet to your wallet?

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

  2. 2

    Confirm in your wallet

    Your wallet shows the Quantum Sharded Network Testnet network details: Chain ID 99991, native token tQSN. 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 Quantum Sharded Network Testnet. You can start transacting right away — you will need tQSN to pay gas fees.

Quantum Sharded Network Testnet network technical details

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

NameQuantum Sharded Network Testnet
Chain ID99991
Native tokentQSN
Decimals18
RPC Endpointhttps://node.qsnchain.com/testnet/
Block Explorerhttps://qsnscan.io

Important notice

  • •Always verify Chain ID 99991 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need tQSN tokens in your wallet to pay gas fees for transactions on Quantum Sharded Network Testnet
  • •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 Quantum Sharded Network Testnet 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 Quantum Sharded Network Testnet Chain ID?▾
The Chain ID of Quantum Sharded Network Testnet is 99991. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need tQSN tokens to use Quantum Sharded Network Testnet?▾
Yes. Every transaction on Quantum Sharded Network Testnet requires tQSN to pay gas fees. You can purchase tQSN on exchanges and bridge it to Quantum Sharded Network Testnet, or use a faucet if this is a testnet.
What is the Quantum Sharded Network Testnet RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the Quantum Sharded Network Testnet blockchain — sending transactions, reading balances, and checking state. One popular Quantum Sharded Network Testnet RPC is https://node.qsnchain.com/testnet/. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says Quantum Sharded Network Testnet already exists when I click Add — what do I do?▾
That's completely normal. If Quantum Sharded Network Testnet is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added Quantum Sharded Network Testnet 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.