World Chain RPC Endpoint

Flat-rate World Chain RPC provider and World Chain RPC node access: free tier, no KYC, HTTP & WebSocket. World Chain mainnet chain ID 480.

World Chain is an Ethereum layer 2 built on the OP Stack by World (formerly Worldcoin) and is part of the Optimism Superchain. It uses ETH for gas and reserves part of each block for transactions from verified World ID holders.

About World Chain

World Chain mainnet went live in October 2024 as an OP Stack rollup that posts its data to Ethereum as blobs. Its distinguishing feature is Priority Blockspace for Humans (PBH): a share of every block is reserved for transactions signed by World ID holders, so verified users are not competing with bots for inclusion during congestion.

It behaves like other OP Stack chains: standard EVM and Solidity tooling, ETH for gas, and the usual OP Stack RPC surface. The ecosystem centers on apps that verify users with World ID, such as World App mini apps, grant claims and sybil-resistant airdrops.

Common Use Cases on World Chain

• World App mini apps
• World ID proof-of-human verification
• WLD grant claims and distributions
• Sybil-resistant airdrops and voting

World Chain Mainnet RPC URL (HTTP)

World Chain WebSocket RPC URL

Quick Start: Connect to World Chain

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/worldchain?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/worldchain?key=YOUR_API_KEY"
);

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add World Chain to MetaMask

Features of SwiftNodes for World Chain

• 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 and WebSocket support
• One API key works across all 75+ supported chains, including World Chain

Rate Limits

Frequently Asked Questions: World Chain

World Chain RPC methods

Measured weekly through this endpoint: what each method returns on World Chain, its limits, and an example request.

• eth_getLogsnot measured
• eth_getBlockReceiptssupported
• eth_feeHistorysupported
• eth_getProofsupported
• eth_createAccessListsupported
• debug_traceCallsupported
• trace_blocksupported
• trace_transactionnot measured

Related L2 & rollup chains

Explore RPC endpoints for other L2 & rollup networks on SwiftNodes: