Connect to zkSync Era, the leading zkEVM rollup by Matter Labs. Experience native account abstraction, sub-cent transactions, and innovative features built for mass adoption.
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Mainnet & Testnet Support — zkSync Sepolia
zkSync Era is a leading zkEVM Layer 2 developed by Matter Labs, offering breakthrough features like native account abstraction, paymaster support, and ultra-low transaction costs. Using zkSNARK technology, zkSync Era provides Ethereum security with 100x+ scalability, making it the platform of choice for next-generation Web3 applications.
https://rpc.crypto-chief.com/zksync/{YOUR_API_KEY}
wss://rpc.crypto-chief.com/zksync/ws/{YOUR_API_KEY}
Replace {YOUR_API_KEY} with your actual API key from the dashboard.
Access the next-generation Ethereum Layer 2
A zkSync Era RPC node provides applications with access to Matter Labs' advanced zkEVM rollup, enabling innovative features like account abstraction, gasless transactions, and flexible payment options alongside traditional blockchain operations. zkSync Era represents the cutting edge of Ethereum scaling technology.
zkSync Era goes beyond simple scaling — it reimagines the user experience with native account abstraction (ERC-4337), allowing users to pay gas in any token, enable social recovery, and create programmable wallets. Combined with zkSNARK security and sub-cent transactions, zkSync Era is built for mainstream Web3 adoption.
zkSync Era advantages:
zkSync Era uses zkSNARK technology to generate cryptographic proofs verifying the correctness of thousands of transactions in a single proof. This approach provides Ethereum-level security while achieving massive scalability improvements. The zkEVM executes Solidity code with 99% compatibility.
How it works:
Account abstraction (AA) allows smart contracts to act as wallets, enabling features impossible with traditional EOAs: pay gas in any token, batch transactions, social recovery, spending limits, two-factor authentication, and more — all native to zkSync Era.
Paymasters are contracts that can pay gas fees on behalf of users, enabling completely gasless experiences or payment in stablecoins instead of ETH.
Quick start for developers
zkSync Era supports standard Ethereum JSON-RPC methods plus zkSync-specific extensions:
const { Provider, Wallet } = require('zksync-ethers');
const { ethers } = require('ethers');
const provider = new Provider('https://rpc.crypto-chief.com/zksync/YOUR_API_KEY');
// Verify we're on zkSync Era
const network = await provider.getNetwork();
console.log('Chain ID:', network.chainId); // 324
// Get ETH balance
const balance = await provider.getBalance('0x...');
console.log('zkSync ETH:', ethers.formatEther(balance));
// zkSync-specific: Get token price for paymaster
const usdcAddress = '0x3355df6D4c9C3035724Fd0e3914dE96A5a83aaf4';
const tokenPrice = await provider.send('zks_getTokenPrice', [usdcAddress]);
console.log('USDC price for gas:', tokenPrice);const { Provider, Wallet } = require('zksync-ethers');
const { ethers } = require('ethers');
const provider = new Provider('https://rpc.crypto-chief.com/zksync/YOUR_API_KEY');
const wallet = new Wallet('PRIVATE_KEY', provider);
// Use paymaster to pay gas in USDC instead of ETH
const PAYMASTER_ADDRESS = '0x...';
const USDC = '0x3355df6D4c9C3035724Fd0e3914dE96A5a83aaf4';
const tx = await wallet.sendTransaction({
to: '0x...',
value: ethers.parseEther('0.1'),
customData: {
paymasterParams: {
paymaster: PAYMASTER_ADDRESS,
paymasterInput: ethers.concat([
PAYMASTER_ADDRESS,
ethers.AbiCoder.defaultAbiCoder().encode(
['address', 'uint256', 'bytes'],
[USDC, ethers.parseUnits('1', 6), '0x']
)
])
}
}
});
console.log('Transaction paid with USDC:', tx.hash);from zksync2.module.module_builder import ZkSyncBuilder
from zksync2.core.types import EthBlockParams
zksync_web3 = ZkSyncBuilder.build('https://rpc.crypto-chief.com/zksync/YOUR_API_KEY')
print('Connected to zkSync:', zksync_web3.is_connected())
print('Chain ID:', zksync_web3.zksync.chain_id)
print('L1 Chain ID:', zksync_web3.zksync.l1_chain_id())
print('Latest block:', zksync_web3.eth.get_block('latest')['number'])
# Get balance
balance = zksync_web3.eth.get_balance('0x...')
print(f'Balance: {balance / 1e18} ETH')const { ethers } = require('ethers');
const provider = new ethers.WebSocketProvider('wss://rpc.crypto-chief.com/zksync/ws/YOUR_API_KEY');
// Monitor new blocks (every ~1s)
provider.on('block', async (blockNumber) => {
const block = await provider.getBlock(blockNumber);
console.log(`zkSync block ${blockNumber}: ${block.transactions.length} txs`);
});
// Monitor USDC transfers
const USDC_ZKSYNC = '0x3355df6D4c9C3035724Fd0e3914dE96A5a83aaf4';
const filter = {
address: USDC_ZKSYNC,
topics: [ethers.id('Transfer(address,address,uint256)')]
};
provider.on(filter, (log) => {
console.log('USDC transfer on zkSync:', log);
});Next-generation zkEVM infrastructure
Optimized infrastructure delivering <70ms latency with zkSync-specific caching and intelligent routing for account abstraction calls.
Enterprise infrastructure supporting zkSync's cryptographic security with 99.9% uptime and redundant proof verification.
Monitor zkSync-specific metrics including paymaster usage, account abstraction calls, and zkEVM performance.
Strategic node deployment across continents ensuring low latency for zkSync's growing global user base.
Infrastructure scales automatically during high traffic maintaining consistent performance for AA-heavy workloads.
24/7 support from engineers with deep zkSync Era, account abstraction, and zkEVM experience.
Build the future of Web3 on zkSync Era
zkSync Era's native account abstraction and ultra-low fees enable entirely new categories of applications — from gasless gaming to social recovery wallets and subscription-based DeFi. Our infrastructure supports the most innovative Web3 projects.
Build next-generation wallets with social recovery, spending limits, multi-signature, gasless transactions, and pay-gas-in-any-token. zkSync's native AA support makes advanced wallet features simple.
Create blockchain games where users never worry about gas fees. Use paymasters to sponsor transactions, enabling seamless onboarding and in-game purchases paid in game tokens.
Build DeFi protocols where users pay fees in stablecoins, batch multiple operations, and enjoy advanced security features. Our infrastructure supports high-frequency zkSync operations.
Launch NFT marketplaces with gasless minting, batch operations, and flexible payment options. Ultra-low fees enable creators to mint without prohibitive costs.
Build payment systems and e-commerce platforms where customers pay in stablecoins without needing ETH for gas. Paymasters handle all gas payments transparently.
Create Web3 social platforms and consumer applications with account abstraction enabling Web2-like UX. Users interact without understanding blockchain complexity.
Start building on Web3 — no credit card.
Flexible pay-as-you-go for any workload.
From $500 monthly plus 20% extra value.
Tailored solution for expert builders
All Subscription features plus: