ICON (ICX) nodes and RPC explorer

Connect to the best ICON API with 99.95% uptime via NOWNodes. Get reliable ICON endpoints in minutes — with a free tier available.

Products

Shared
Dedicated

Networks

Mainnet

API Tools

Archive mode

Advanced API tools

Advanced APIs for ICON and all supported networks — from real-time WebSocket streams to deep historical and indexed data.

Real-time WebSocket access on supported networks.
Subscribe to new blocks, transactions, and events without polling.

Access full blockchain history on supported networks.
Query historical states and logs beyond pruned node limits.

Advanced tracing and debugging methods on supported networks.
Inspect transactions, internal calls, and execution paths.

High-level indexed blockchain data via a unified API. Access addresses, transactions, balances, and blocks without raw RPC calls.

Flexible ICON API infrastructure

Clear pricing and shared infrastructure with no hidden limits or unexpected restrictions for ICON.

No RPS limits

There are no predefined RPS limits on paid plans. Throughput scales dynamically based on cluster capacity, without artificial throttling.

Flexible pricing

Plans for different budgets — from shared access to dedicated nodes. Combine tariffs to optimize costs without sacrificing performance.

Geo-balanced infrastructure

Requests are served through geo-distributed, load-balanced node clusters. Automatic failover maintains availability if nodes go offline.

120+ Blockchains

One RPC provider — 120+ blockchains. We regularly add new chains, including by request from our users. Check out our crypto node list.

99,95% Uptime

Reliable performance under any load — with smart load balancing. We ensure stable performance and deliver on our SLA.

24/7 Support

Our support team consists of experienced technical experts. With a clear SLA, we guarantee help, with first responses in under 3 minutes.

Production starts here

Focus on your product — we handle ICON node maintenance, scaling and availability.

FAQ

What is an ICON node provider?

An ICON node provider delivers managed blockchain infrastructure, giving developers instant access to the ICON network without the burden of deploying and maintaining their own nodes. Instead of managing synchronization, infrastructure, software updates, and ongoing maintenance, teams can connect to reliable hosted endpoints and begin building immediately.

What is an ICON API?

An ICON API enables applications to communicate with the ICON blockchain through managed endpoints without operating their own node. Developers can use the API to broadcast transactions, retrieve block and transaction data, query account information, interact with smart contracts, and monitor network activity. API access is the standard approach for wallets, DeFi applications, exchanges, explorers, and other blockchain services.

Should I run an ICON node myself?

Running your own ICON node is not necessary for most projects. Operating a node requires continuous synchronization, software updates, security monitoring, and dedicated infrastructure. These requirements often make self-hosted nodes costly and time-consuming, particularly as your application grows.

What ICON APIs does NOWNodes support?

NOWNodes provides ICON RPC API and Archive mode through reliable, enterprise-grade infrastructure. These services enable developers to broadcast transactions, retrieve block and transaction data, access complete historical blockchain records, query account information, interact with smart contracts, and analyze on-chain activity without maintaining their own ICON nodes.

How do I start using an ICON node?

After logging in to NOWNodes and selecting a plan, navigate to the Dashboard in your account and scroll down the page. There you will find the Add a New Key button. Click it to generate your API key, then use it to connect to the ICON API.

Can I access ICON infrastructure for free?

Yes. You can start with our START plan, which provides access to shared ICON infrastructure with up to 100,000 API requests per month.

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