IoTeX RPC Endpoints

Mainnet

Chain ID
Family: EVM

HTTPS

https://api-iotex-mainnet.n.dwellir.com/<your-api-key>

WSS

wss://api-iotex-mainnet.n.dwellir.com/<your-api-key>

Quick Start

BASH

curl -sS -X POST https://api-iotex-mainnet.n.dwellir.com/<your-api-key> \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

JAVASCRIPT

import { JsonRpcProvider } from 'ethers';

const provider = new JsonRpcProvider('https://api-iotex-mainnet.n.dwellir.com/<your-api-key>');
const latest = await provider.getBlockNumber();
console.log('block', latest);

PYTHON

import requests

url = 'https://api-iotex-mainnet.n.dwellir.com/<your-api-key>'
payload = { 'jsonrpc': '2.0', 'id': 1, 'method': 'eth_blockNumber', 'params': [] }
resp = requests.post(url, json=payload)
print(resp.json())

package main

import (
  "bytes"
  "fmt"
  "net/http"
  "io/ioutil"
)

func main() {
  url := "https://api-iotex-mainnet.n.dwellir.com/<your-api-key>"
  payload := []byte("{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"eth_blockNumber\",\"params\":[]}")
  resp, err := http.Post(url, "application/json", bytes.NewBuffer(payload))
  if err != nil { panic(err) }
  defer resp.Body.Close()
  body, _ := ioutil.ReadAll(resp.Body)
  fmt.Println(string(body))
}

IoTeX is a purpose-built blockchain platform designed to connect the physical world with Web3. As a pioneer in the DePIN (Decentralized Physical Infrastructure Networks) sector since 2017, IoTeX provides a high-performance, EVM-compatible Layer 1 blockchain optimized for IoT devices and real-world data. With sub-second finality, 2000+ TPS throughput, and unique features like W3bstream for verifiable off-chain computing and ioID for decentralized machine identity, IoTeX powers the next generation of connected devices and decentralized infrastructure networks.

Shared Node Pricing

How many calls do you make per month?

/ month

Growth

$299

/month

500 Responses /sec
Pay in Crypto
Dedicated Account Manager

CHOOSE GROWTH

IoTeX Unlimited Node

Unmetered requests within your tier
Five tiers from 25 to 1,000 RPS
No API credits, no overages
Pay in Crypto
HTTP & Websocket APIs
Trace APIs
Debug APIs
Same endpoint URL and API key
Self-serve in the dashboard
Fixed monthly invoice

From $119/month

SEE UNLIMITED NODE PRICING

IoTeX Dedicated Node Cluster

Unlimited RPS & Responses
HTTP & Websocket APIs
Trace APIs
Debug APIs
Pay in Crypto
Dedicated Account Manager
Tailored load balancing
Access to Engineering teams
Global data centers

$3000/month

TELEGRAM CONTACT SALES

Developer Resources

FAQs

What is IoTeX and what makes it unique?

IoTeX is a Layer 1 blockchain specifically designed for IoT devices and DePIN applications. It combines EVM compatibility with unique features like W3bstream (zero-knowledge proof middleware for verifiable off-chain computing), ioID (decentralized identity for machines), and Roll-DPoS consensus for efficient, hardware-friendly validation. IoTeX 2.0 introduced modular infrastructure making it the universal network architecture layer for the entire DePIN sector.

How does IoTeX's consensus mechanism work?

IoTeX uses Roll-DPoS (Randomized Delegated Proof of Stake), which combines DPoS with PBFT and VRFs for enhanced security. The system randomly selects 24 of the top 36 community-elected Delegates every epoch (one hour) using distributed key generation and BLS signatures. This approach achieves 5-second block finality with over 2000 TPS throughput while maintaining decentralization and hardware efficiency.

What are the key features for DePIN development on IoTeX?

IoTeX provides specialized infrastructure for DePIN projects including: W3bstream for verifiable data streaming and zero-knowledge proofs (chain-agnostic, supporting Ethereum, Solana, Polygon, etc.), ioID for decentralized device identity and authentication, MachineFi SDK for tokenizing machine resources and data, DePINscan explorer tracking 300+ projects and 20M+ devices, and seamless integration with AI agents for real-time device signal processing.

What development tools are available for IoTeX?

IoTeX offers comprehensive developer tools including: Standard EVM tooling (Web3.js, ethers.js, Hardhat, Truffle), IoTeX SDK for JavaScript/TypeScript, Python, and Go, Antenna SDK for native IoTeX operations, ioPay wallet (official multi-platform wallet), and specialized tools like W3bstream Studio for building verifiable computing applications. The chain ID is 4689 for mainnet and 4690 for testnet.

How does IoTeX support real-world IoT integration?

IoTeX bridges physical devices to Web3 through multiple layers: Device registration and identity management via ioID, secure data streaming through W3bstream with zero-knowledge proofs, MachineFi protocols for device resource tokenization, AI interaction layer for contextual device insights, and support for various IoT protocols (MQTT, CoAP, HTTP). This infrastructure enables use cases like smart city sensors, connected vehicles, wearables, and industrial IoT with blockchain-verified data and decentralized control.

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