Connect to Linea, the zkEVM Layer 2 built by ConsenSys. Experience ultra-low fees, Ethereum-equivalent security through zero-knowledge proofs, and seamless MetaMask integration.
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Technical characteristics and available endpoints
Mainnet & Testnet Support — Linea Sepolia
Linea is a zkEVM Layer 2 scaling solution developed by ConsenSys, the company behind MetaMask and Infura. Using zero-knowledge proof technology, Linea provides Ethereum-equivalent security with dramatically lower costs, making it ideal for DeFi, NFTs, and Web3 applications requiring both performance and cryptographic security guarantees.
https://rpc.crypto-chief.com/linea/{YOUR_API_KEY}
wss://rpc.crypto-chief.com/linea/ws/{YOUR_API_KEY}
Replace {YOUR_API_KEY} with your actual API key from the dashboard.
Access ConsenSys's zkEVM Layer 2
A Linea RPC node provides applications with access to ConsenSys's zkEVM Layer 2, enabling low-cost Ethereum transactions with cryptographic security guarantees from zero-knowledge proofs. Linea combines the best of Layer 2 scalability with enhanced security compared to optimistic rollups.
Unlike optimistic rollups that assume validity and require challenge periods, zkEVMs use zero-knowledge proofs to cryptographically verify every transaction. This provides instant finality and stronger security guarantees while maintaining full EVM compatibility — you get Ethereum's security with Layer 2 performance.
Linea advantages:
Linea executes transactions off-chain in batches, generates zero-knowledge proofs verifying correct execution, and posts these proofs to Ethereum. Unlike optimistic rollups, validity is proven cryptographically rather than assumed, eliminating the need for fraud proofs and challenge periods.
Technical flow:
HTTPS endpoints handle standard blockchain operations — querying state, submitting transactions, calling contracts with low latency and high reliability.
WebSocket endpoints enable real-time subscriptions for blocks, transactions, events, and logs — essential for trading interfaces and monitoring applications.
Quick start for developers
Linea supports all standard Ethereum JSON-RPC methods with full EVM equivalence:
const { ethers } = require('ethers');
const provider = new ethers.JsonRpcProvider('https://rpc.crypto-chief.com/linea/YOUR_API_KEY');
// Verify we're on Linea
const network = await provider.getNetwork();
console.log('Chain ID:', network.chainId); // 59144
// Get ETH balance on Linea
const balance = await provider.getBalance('0x...');
console.log('Linea ETH:', ethers.formatEther(balance));
// Send transaction on Linea
const wallet = new ethers.Wallet('YOUR_PRIVATE_KEY', provider);
const tx = await wallet.sendTransaction({
to: '0x...',
value: ethers.parseEther('0.1')
});
console.log('Transaction hash:', tx.hash);
await tx.wait();
console.log('Confirmed!');from web3 import Web3
w3 = Web3(Web3.HTTPProvider('https://rpc.crypto-chief.com/linea/YOUR_API_KEY'))
print('Connected to Linea:', w3.is_connected())
print('Chain ID:', w3.eth.chain_id) # 59144
print('Latest block:', w3.eth.block_number)
print('Gas price:', w3.eth.gas_price, 'wei')
# Very low gas on Linea
gas_gwei = w3.from_wei(w3.eth.gas_price, 'gwei')
print(f'Gas: {gas_gwei} Gwei')const { ethers } = require('ethers');
const provider = new ethers.WebSocketProvider('wss://rpc.crypto-chief.com/linea/ws/YOUR_API_KEY');
// Monitor new blocks
provider.on('block', async (blockNumber) => {
const block = await provider.getBlock(blockNumber);
console.log(`Linea block ${blockNumber}: ${block.transactions.length} txs`);
});
// Monitor contract events
const contractAddress = '0x...';
const filter = {
address: contractAddress,
topics: [ethers.id('Transfer(address,address,uint256)')]
};
provider.on(filter, (log) => {
console.log('Event detected:', log);
});Production-ready zkEVM infrastructure
Optimized global infrastructure delivering <75ms latency with intelligent routing and zkEVM-optimized caching strategies.
Benefit from cryptographic security guarantees of zero-knowledge proofs with enterprise-grade infrastructure reliability.
Comprehensive monitoring of RPC metrics including request volume, method distribution, latency, and error tracking.
Nodes deployed across continents with automatic geo-routing ensuring low latency for users worldwide.
Infrastructure scales automatically during high traffic maintaining consistent performance without manual intervention.
24/7 support from engineers with deep zkEVM and Layer 2 expertise. Average response time under 5 minutes.
Build secure applications on Linea zkEVM
Linea's combination of zkEVM security, low fees, and ConsenSys backing makes it ideal for DeFi protocols, NFT platforms, and Web3 applications requiring both performance and cryptographic security guarantees.
Launch lending, DEXs, and derivatives with enhanced security from zero-knowledge proofs. Our infrastructure supports high-frequency trading and complex financial operations with cryptographic validity.
Build NFT platforms where minting and trading benefit from low fees and instant finality. No 7-day withdrawal periods mean users can exit to L1 quickly when needed.
Leverage Linea's native MetaMask support for seamless user onboarding. Our infrastructure ensures smooth wallet operations and transaction processing.
Build games requiring both performance and security. Low fees enable frequent in-game transactions while zkProofs ensure fairness and prevent cheating.
For applications where security is paramount, Linea's zkEVM provides stronger guarantees than optimistic rollups through cryptographic validity proofs.
Build bridges and cross-chain applications leveraging Linea's fast finality and strong security model for reliable cross-chain messaging.
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: