Swellchain RPC Node
Restaking-Native Layer 2

Connect to Swellchain, the Layer 2 built for liquid staking and restaking. Experience seamless integration with Swell's $1.5B+ liquid staking protocol on Optimism Superchain.

2 M+

Requests per Day

99.9 %

Network Uptime

< 100 ms

Average Response Time

24/7

Technical Support

Specification Swellchain Network

Technical characteristics and available endpoints

Swellchain (ETH on L2)

Mainnet — Optimism Superchain

Chain ID 1923
Protocol HTTPS / WSS
Uptime 99.9%
Block Time ~2s
Consensus Optimistic Rollup (OP Stack)
EVM Compatible Yes

Swellchain is a purpose-built Layer 2 on the Optimism Superchain, designed specifically for restaking and liquid staking use cases. Built by Swell Network, a leading liquid staking protocol with $1.5B+ TVL, Swellchain brings native restaking infrastructure, seamless swETH integration, and DeFi-optimized features to a high-performance Layer 2 environment.

Key capabilities:

  • Built on Optimism Superchain with OP Stack technology
  • Native integration with Swell liquid staking ($1.5B+ TVL)
  • Restaking-focused infrastructure and primitives
  • EigenLayer integration for restaking operations
  • Transaction fees paid in swETH (liquid staked ETH)
  • Optimized for DeFi protocols leveraging restaking
  • Full EVM compatibility with Ethereum tooling
  • Low fees and fast finality through OP Stack

🔗 RPC Endpoints

HTTPS
https://rpc.crypto-chief.com/swellchain/{YOUR_API_KEY}
WSS
wss://rpc.crypto-chief.com/swellchain/ws/{YOUR_API_KEY}

Replace {YOUR_API_KEY} with your actual API key from the dashboard.

What is a Swellchain RPC Node?

Access the restaking-native Layer 2

A Swellchain RPC node provides applications with access to Swell's restaking-optimized Layer 2, enabling liquid staking operations, restaking protocols, and DeFi applications leveraging Swell's infrastructure. Built on the Optimism Superchain, Swellchain combines proven Layer 2 technology with innovative restaking primitives.

Why Swellchain matters

Swellchain is the first Layer 2 purpose-built for restaking, bringing together Swell's liquid staking expertise with scalable Layer 2 infrastructure. By enabling native swETH operations and EigenLayer restaking on a high-performance chain, Swellchain creates a new category of DeFi applications focused on maximizing staking yields.

Swellchain advantages:

  • Restaking native — built specifically for restaking use cases
  • Swell integration — seamless swETH and liquid staking
  • EigenLayer support — native restaking infrastructure
  • OP Stack — proven Optimism technology
  • Low fees — gas payable in swETH
  • DeFi optimized — designed for yield strategies

Liquid staking & restaking

Liquid staking allows users to stake ETH while maintaining liquidity through tokens like swETH (Swell ETH). Restaking (pioneered by EigenLayer) lets users stake their already-staked ETH to secure additional protocols, earning multiple layers of yield.

Swellchain brings both concepts together on a scalable Layer 2, enabling complex yield strategies impossible on Ethereum mainnet due to gas costs.

Swellchain architecture:

  1. Built on OP Stack (Optimism Superchain)
  2. Native swETH integration for liquid staking
  3. EigenLayer restaking infrastructure
  4. Optimistic rollup security from Ethereum
  5. Cross-chain messaging via Superchain

Optimism Superchain

Swellchain is part of the Optimism Superchain — a network of interoperable OP Stack chains. This provides Swellchain with standardized bridging, shared security, and cross-chain communication with other Superchain networks like Base, Optimism, and Mode.

Technical Documentation

Quick start for developers

Supported RPC Methods

Swellchain supports all standard Ethereum JSON-RPC methods as it's fully EVM-compatible:

  • eth_blockNumber — current block number
  • eth_getBalance — ETH/swETH balance
  • eth_call — call contract functions
  • eth_sendRawTransaction — broadcast transactions
  • eth_getTransactionReceipt — transaction confirmation
  • eth_getLogs — event logs
  • eth_gasPrice — current gas price
  • eth_estimateGas — gas estimation
  • eth_subscribe — WebSocket subscriptions

Code Examples

💻

JavaScript (ethers.js) — Swellchain Connection:

const { ethers } = require('ethers');

const provider = new ethers.JsonRpcProvider('https://rpc.crypto-chief.com/swellchain/YOUR_API_KEY');

// Verify we're on Swellchain
const network = await provider.getNetwork();
console.log('Chain ID:', network.chainId); // 1923

// Get ETH balance
const balance = await provider.getBalance('0x...');
console.log('Balance:', ethers.formatEther(balance), 'ETH');

// Interact with swETH on Swellchain
const SWETH_ADDRESS = '0x...';
const swethABI = ['function balanceOf(address) view returns (uint256)'];
const sweth = new ethers.Contract(SWETH_ADDRESS, swethABI, provider);
const swethBalance = await sweth.balanceOf('0x...');
console.log('swETH:', ethers.formatEther(swethBalance));
💻

Python (web3.py) — Swellchain Setup:

from web3 import Web3

w3 = Web3(Web3.HTTPProvider('https://rpc.crypto-chief.com/swellchain/YOUR_API_KEY'))

print('Connected:', w3.is_connected())
print('Chain ID:', w3.eth.chain_id)  # 1923
print('Latest block:', w3.eth.block_number)
print('Gas price:', w3.eth.gas_price)
💻

WebSocket — Monitor Swellchain Activity:

const { ethers } = require('ethers');
const provider = new ethers.WebSocketProvider('wss://rpc.crypto-chief.com/swellchain/ws/YOUR_API_KEY');

// Monitor new blocks
provider.on('block', async (blockNumber) => {
  console.log('New Swellchain block:', blockNumber);
});

// Monitor swETH transfers
const SWETH_ADDRESS = '0x...';
const filter = {
  address: SWETH_ADDRESS,
  topics: [ethers.id('Transfer(address,address,uint256)')]
};

provider.on(filter, (log) => {
  console.log('swETH transfer:', log);
});

Swellchain Best Practices

  • swETH Integration: Leverage native swETH for gas payments
  • Restaking Protocols: Build on EigenLayer integration
  • OP Stack: Use standard Optimism tooling and bridges
  • Yield Strategies: Optimize for restaking yield combinations
  • Cross-chain: Leverage Superchain messaging for multi-L2 apps
  • Testing: Test thoroughly before mainnet deployment

Why choose us?

Restaking-optimized infrastructure

Fast Performance

Optimized infrastructure delivering <75ms latency with OP Stack technology and efficient state access.

Secure & Reliable

Enterprise-grade security with 99.9% uptime leveraging proven Optimism rollup technology.

Restaking Analytics

Monitor swETH operations, restaking activities, yield metrics, and DeFi protocol interactions.

Global Access

Strategically deployed nodes ensuring low latency for DeFi users and protocols worldwide.

Auto-Scaling

Infrastructure scales with Swellchain's growing DeFi ecosystem handling increasing transaction volumes.

DeFi Support

24/7 support from engineers familiar with liquid staking, restaking, and OP Stack development.

Examples of Use

Build restaking applications on Swellchain

Swellchain's restaking-native infrastructure enables DeFi protocols focused on maximizing yield through liquid staking and EigenLayer restaking strategies.

Restaking Protocols

Build protocols leveraging EigenLayer restaking on Swellchain. Create AVS (Actively Validated Services) and yield optimization strategies with native swETH support.

Yield Aggregators

Launch yield aggregators combining liquid staking yields with restaking rewards. Optimize complex yield strategies on low-fee infrastructure.

Liquid Staking DeFi

Create DeFi protocols using swETH as collateral — lending markets, leveraged staking, derivatives. Swellchain's native integration makes this seamless.

Staking Wallets

Build wallet applications focused on liquid staking and restaking. Our infrastructure ensures smooth swETH operations and yield tracking.

Analytics Platforms

Create dashboards tracking restaking yields, swETH performance, and Swellchain ecosystem metrics for investors and protocols.

Cross-Chain Restaking

Leverage Superchain messaging to build cross-L2 restaking applications connecting Swellchain with other OP Stack chains.

Got questions?
we are here to help

Swellchain is a Layer 2 on Optimism Superchain built specifically for restaking and liquid staking, developed by Swell Network ($1.5B+ liquid staking TVL).

Restaking allows staked ETH to secure additional protocols (via EigenLayer), earning multiple layers of yield. Swellchain provides native infrastructure for this.

swETH is Swell's liquid staking token representing staked ETH. It accrues staking rewards while remaining liquid and usable in DeFi.

Yes, Swellchain is built on the OP Stack and is part of the Optimism Superchain, benefiting from shared security and cross-chain messaging.

Yes, Swellchain supports paying transaction fees in swETH in addition to ETH, making it convenient for liquid staking users.

Swellchain provides native infrastructure for EigenLayer restaking, allowing protocols to build AVS (Actively Validated Services) and restaking strategies.

Yes, Swellchain is fully EVM-compatible. Deploy Ethereum smart contracts using standard tools like Hardhat, Foundry, and Remix.

Use the official Swellchain bridge or Optimism Superchain bridges to transfer assets from Ethereum or other OP Stack chains.

Swellchain transaction fees are significantly lower than Ethereum mainnet, typical of OP Stack L2s, usually under $0.10.

We provide RPC access to Swellchain mainnet. Check Swell's documentation for testnet information and resources.

Pricing that grows with your needs.

Free

Start building on Web3 — no credit card.

$0
  • 5 reqs/sec RPC
  • 5 reqs/min Unified API
  • Ultimate chains
  • WSS, Statistics
  • Community support

Pay for use

Flexible pay-as-you-go for any workload.

From $10
  • 400 reqs/sec RPC
  • 300 reqs/min Unified API
  • 10 reqs/min AML
  • EventStream
  • Ultimate chains
  • WSS, Whitelists, Statistics
  • Support portal

Subscription

From $500 monthly plus 20% extra value.

From $500
  • 700 reqs/sec RPC
  • 500 reqs/min Unified API
  • 5 reqs/sec AML
  • EventStream
  • Ultimate chains
  • WSS, Whitelists, Statistics
  • Support portal

Enterprise

Tailored solution for expert builders

Custom terms

All Subscription features plus:

  • Flexible rate limits
  • Engineering team support
  • Custom SLA
  • Personal manager