The only Ethereum
provider you’ll ever need
Build on Ethereum with the fastest RPC Nodes, a comprehensive library of web3 APIs, and the most performant blockchain ETL tools—all backed by enterprise-grade infrastructure.
Battle tested infrastructure
for Ethereum builders
Providing performance and reliability at scale for the world's top businesses and onchain projects. Join them.
400 billion+
API requests handled monthly, we can handle any volume you need.
99.99%
Uptime SLA ensures you're only paying while we're online.
2.5x
Faster API response times than our competitors.
24/7
Access to our support team, Discord community, and docs.
Everything you need to build on Ethereum,
all under one account
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- Mainnet
- Sepolia Testnet
- Hoodi Testnet
Reliable & scalable
RPC endpoints
Connect to Ethereum with one line of code and get unparalleled latency, reliability, and scalability.
- // Webhook ReceivedJust now
{ "id": 27774258, "eventType": "transfer", "chain": "Ethereum", "timestamp": 1744984842549, "address": "0x57cfd5d72a6a2f72", "amount": "39.697", "token": "AAVE", "timeAgo": "45 min ago" }
- // Webhook ReceivedJust now
{ "id": 27774258, "eventType": "transfer", "chain": "Ethereum", "timestamp": 1744984842549, "address": "0x57cfd5d72a6a2f72", "amount": "39.697", "token": "AAVE", "timeAgo": "45 min ago" }
- // Webhook ReceivedJust now
{ "id": 27774258, "eventType": "transfer", "chain": "Ethereum", "timestamp": 1744984842549, "address": "0x57cfd5d72a6a2f72", "amount": "39.697", "token": "AAVE", "timeAgo": "45 min ago" }
- Mainnet
- Sepolia Testnet
Real-time webhooks
No-code webhooks with guaranteed delivery, custom JavaScript logic, and built-in reorg handling.
- Mainnet
- Sepolia Testnet
Historical Backfills
Deliver raw or filtered historical blockchain data sequentially, with guaranteed delivery and flexible batching options.
Supercharge your dApp with
add-on services
Integrate with add-on services and tools to enhance the
functionality of yourEthereum application.
At Cielo, we serve over 150,000 users that depend on real-time data. QuickNode is key in making that happen.
Matt Aaron , Co-Founder at Cielo Finance
Learn more about Ethereum,
and how to get started
Why build on Ethereum?
Ethereum is a pioneering smart contract platform that introduced the concept of decentralized applications (dApps). Its robust developer community and extensive tooling make it a prime choice for building versatile and secure dApps.
- Transaction Cost$3.18142
- Transaction Speed12.06 sec
- Throughput13.16 tps
- User Activity358.4K addr
- Active Developers3.2K devs
- Total Value Locked$48.2B
- Stablecoin Market Cap$80.5B
- Stablecoin Volume$13.5B
Ethererum RPC Docs
Browse our robust documentation for all of our supported chains and learn how to call RPC methods using up-to-date libraries and code examples across Python, Ruby, JavaScript, and cURL.
Ethereum Developer Resources
Developer resources to level up your Ethereum game.
DeFi Development with Ethereum
In this course, you will build a decentralized exchange (DEX) platform on Ethereum Sepolia.
What is Ethereum (ETH)?
In this guide, you will learn what Ethereum is, how it works, and how to use it. Let's get started!