Build on Khromosome.

01 Connect

One click adds Khromosome to any EIP-1193 wallet (MetaMask, Rabby, Frame).

Network parameters

02 Network facts

03 Core contracts

All deployed contracts are verified — source is browsable on sourcify.khromosome.network and on each address page in the explorer.

On Ethereum mainnet

04 Hello world

Deploy your first contract to Khromosome with Foundry. Same flow as any EVM chain.

1 · Fund a wallet

# grab a fresh keypair, then drip it from the faucet
cast wallet new
curl -X POST https://faucet.khromosome.network/drip \
  -H 'content-type: application/json' \
  -d '{"address":"0xYourAddress"}'

2 · Deploy

# any Foundry project — point --rpc-url at Khromosome
forge create src/Counter.sol:Counter \
  --rpc-url https://rpc.khromosome.xyz \
  --private-key $PK \
  --broadcast

3 · Verify the source

# submit the build's metadata.json + sources to Sourcify
curl -X POST \
  https://sourcify.khromosome.network/v2/verify/metadata/777001/0xYourContract \
  -H 'content-type: application/json' \
  -d @verify-body.json
# the green "Exact Match" badge then shows on KHROME EXPLORER

05 Talk to the chain

JSON-RPC

curl https://rpc.khromosome.xyz \
  -X POST -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

ethers.js

import { ethers } from "ethers";
const provider = new ethers.JsonRpcProvider("https://rpc.khromosome.xyz");
const net = await provider.getNetwork();   // chainId 777001n
const head = await provider.getBlockNumber();

viem

import { createPublicClient, http, defineChain } from "viem";

export const khromosome = defineChain({
  id: 777001,
  name: "Khromosome",
  nativeCurrency: { name: "Khrome", symbol: "KHROME", decimals: 18 },
  rpcUrls: { default: { http: ["https://rpc.khromosome.xyz"],
                        webSocket: ["wss://ws.khromosome.xyz"] } },
  blockExplorers: { default: { name: "KHROME EXPLORER",
                               url: "https://explorer.khromosome.network" } },
});

const client = createPublicClient({ chain: khromosome, transport: http() });

06 The mainnet bridge

KHROME crosses to Ethereum mainnet through a lock-and-mint bridge. Lock native KHROME in KhromeBridge on Khromosome; a relayer mints BridgedKHROME (an ERC-20) on mainnet. Burn it back with bridgeBack to receive native KHROME again.

07 Every surface