IoTeX RPC Endpoint

Flat-rate IoTeX RPC provider and IoTeX RPC node access: free tier, no KYC, HTTP. IoTeX mainnet chain ID 4689.

IoTeX is an EVM-compatible Layer 1 focused on DePIN (decentralized physical infrastructure networks) and connecting real-world devices to blockchains. It uses Roll-DPoS consensus for fast, instant-finality block production.

About IoTeX

IoTeX mainnet launched on April 22, 2019. Its Roll-DPoS consensus combines delegated proof-of-stake with PBFT and verifiable random functions, electing a rotating set of delegates that produce blocks with instant finality. Block times are roughly 5 seconds with single-block finality.

IoTeX is fully EVM-compatible, so Solidity contracts and standard Ethereum tooling deploy unchanged, and IOTX is the native gas and staking token. With its 2.0 roadmap, IoTeX expanded into modular DePIN infrastructure, providing modules for connecting and verifying data from real-world devices.

Common Use Cases on IoTeX

• DePIN applications and device networks
• Verifiable real-world data on-chain
• EVM DeFi and smart contracts
• IOTX staking and governance
• Machine-to-machine payments

IoTeX Ecosystem

Centers on DePIN projects and IoTeX's DIM modules for connecting devices, alongside EVM DeFi and the W3bstream off-chain compute framework.

IoTeX Mainnet RPC URL (HTTP)

IoTeX WebSocket RPC URL

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

Quick Start: Connect to IoTeX

cURL

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

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add IoTeX to MetaMask

Bridging to IoTeX

Assets bridge to IoTeX via the ioTube bridge and providers such as LayerZero (Stargate) for cross-chain transfers.

Features of SwiftNodes for IoTeX

• 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 IoTeX

Rate Limits

Frequently Asked Questions: IoTeX

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