Rootstock RPC Endpoint

Flat-rate Rootstock RPC provider and Rootstock RPC node access: free tier, no KYC, HTTP. Rootstock mainnet chain ID 30.

Rootstock (RSK) is an EVM-compatible smart contract sidechain secured by the Bitcoin network through merged mining. Its native gas token, RBTC, is pegged 1:1 to BTC, bringing programmable smart contracts to Bitcoin holders.

About Rootstock

Rootstock launched its mainnet in January 2018 as one of the earliest Bitcoin sidechains. It uses merged mining, allowing Bitcoin miners to secure Rootstock with the same proof-of-work hashing, and produces blocks roughly every 30 seconds.

RBTC, the network's gas token, is backed 1:1 by BTC via the PowPeg two-way peg, and the supply mirrors Bitcoin's 21 million cap. The Rootstock Virtual Machine is compatible with the EVM, so Solidity contracts and Ethereum tooling can run on a Bitcoin-secured chain, supporting BTC-denominated DeFi.

Common Use Cases on Rootstock

• BTC-denominated DeFi (lending, DEXes)
• Stablecoins collateralized by RBTC
• Smart contracts secured by Bitcoin
• Tokenization on a Bitcoin-pegged chain
• Payments using RBTC

Rootstock Ecosystem

The ecosystem centers on BTCFi protocols such as Sovryn and Money on Chain, along with the RIF suite of developer infrastructure.

Rootstock Mainnet RPC URL (HTTP)

Rootstock WebSocket RPC URL

Not available for Rootstock right now: none of its upstreams currently accepts a subscription in our health checks. Poll the HTTP endpoint above instead.

Quick Start: Connect to Rootstock

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/rootstock?key=YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

ethers.js

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider(
  "https://rpc.swiftnodes.io/rpc/rootstock?key=YOUR_API_KEY"
);

const blockNumber = await provider.getBlockNumber();
console.log("Rootstock block:", blockNumber);

viem

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://rpc.swiftnodes.io/rpc/rootstock?key=YOUR_API_KEY"),
});

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://rpc.swiftnodes.io/rpc/rootstock?key=YOUR_API_KEY"))
print("Rootstock block:", w3.eth.block_number)

Add Rootstock to MetaMask

Bridging to Rootstock

BTC enters and exits via the PowPeg two-way peg, and third-party bridges connect Rootstock assets to other EVM chains.

Features of SwiftNodes for Rootstock

• Load-balanced across multiple upstream nodes wherever a chain has more than one, with automatic failover
• Health-checked every 2 minutes with automatic failover
• Free tier available — no credit card or KYC required
• Flat-rate monthly pricing with no per-request fees
• HTTP support (WebSocket not available for this chain right now)
• One API key works across all 75+ supported chains, including Rootstock

Rate Limits

Frequently Asked Questions: Rootstock

Rootstock guides from the blog

• Rootstock RPC: An EVM Chain Where Gas Is BitcoinRootstock (RSK) is an EVM sidechain merge-mined by Bitcoin — chain ID 30, RBTC gas pegged 1:1 to BTC, ~30s blocks. viem and ethers connect in one line, but two things trip up Ethereum devs: gas is denominated in Bitcoin, and addresses use an EIP-1191 checksum that standard tooling gets 'wrong'. Here's the map.

Related EVM chains

Explore RPC endpoints for other EVM networks on SwiftNodes: