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Kusama

Add Kusama to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Chain ID: 420420418·Symbol: KSM

Kusama is an EVM-compatible blockchain with Chain ID 420420418 and native token KSM. This page lets you add Kusama to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://eth-rpc-kusama.polkadot.io
WSS
wss://eth-rpc-kusama.polkadot.io

Block Explorer

blockscout

What is Kusama?

Kusama 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 Kusama once you add the network configuration.

Why do you need to add Kusama to your wallet?

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

  2. 2

    Confirm in your wallet

    Your wallet shows the Kusama network details: Chain ID 420420418, native token KSM. 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 Kusama. You can start transacting right away — you will need KSM to pay gas fees.

Kusama network technical details

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

NameKusama
Chain ID420420418
Native tokenKSM
Decimals18
RPC Endpointhttps://eth-rpc-kusama.polkadot.io
Block Explorerhttps://blockscout-kusama.polkadot.io

Important notice

  • •Always verify Chain ID 420420418 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need KSM tokens in your wallet to pay gas fees for transactions on Kusama
  • •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 Kusama 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 Kusama Chain ID?▾
The Chain ID of Kusama is 420420418. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need KSM tokens to use Kusama?▾
Yes. Every transaction on Kusama requires KSM to pay gas fees. You can purchase KSM on exchanges and bridge it to Kusama, or use a faucet if this is a testnet.
What is the Kusama RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the Kusama blockchain — sending transactions, reading balances, and checking state. One popular Kusama RPC is https://eth-rpc-kusama.polkadot.io. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says Kusama already exists when I click Add — what do I do?▾
That's completely normal. If Kusama is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added Kusama 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.