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DOS Testnet

Add DOS Testnet to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Testnet
Chain ID: 3939·Symbol: DOS

DOS Testnet is an EVM-compatible blockchain with Chain ID 3939 and native token DOS. This page lets you add DOS Testnet to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://test.doschain.com

Block Explorer

DOScan-Test

What is DOS Testnet?

DOS 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 DOS Testnet once you add the network configuration.

Why do you need to add DOS Testnet to your wallet?

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

  2. 2

    Confirm in your wallet

    Your wallet shows the DOS Testnet network details: Chain ID 3939, native token DOS. 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 DOS Testnet. You can start transacting right away — you will need DOS to pay gas fees.

DOS 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:

NameDOS Testnet
Chain ID3939
Native tokenDOS
Decimals18
RPC Endpointhttps://test.doschain.com
Block Explorerhttps://test.doscan.io

Important notice

  • •Always verify Chain ID 3939 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need DOS tokens in your wallet to pay gas fees for transactions on DOS 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 DOS 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 DOS Testnet Chain ID?▾
The Chain ID of DOS Testnet is 3939. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need DOS tokens to use DOS Testnet?▾
Yes. Every transaction on DOS Testnet requires DOS to pay gas fees. You can purchase DOS on exchanges and bridge it to DOS Testnet, or use a faucet if this is a testnet.
What is the DOS Testnet RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the DOS Testnet blockchain — sending transactions, reading balances, and checking state. One popular DOS Testnet RPC is https://test.doschain.com. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says DOS Testnet already exists when I click Add — what do I do?▾
That's completely normal. If DOS Testnet is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added DOS 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.