No RPS limits
There are no predefined RPS limits on paid plans. Throughput scales dynamically based on cluster capacity, without artificial throttling.
Arbitrum (ARB) nodes and RPC explorer
Connect to the best Arbitrum RPC with 99.95% uptime via NOWNodes. Get reliable Arbitrum API endpoints in minutes — with a free tier available.
Products
Shared
Dedicated
Networks
Mainnet
API Tools
WSS
Blockbook
Debug
Advanced API tools
Advanced APIs for Arbitrum and all supported networks — from real-time WebSocket streams to deep historical and indexed data.
Flexible Arbitrum API infrastructure
Clear pricing and shared infrastructure with no hidden limits or unexpected restrictions for Arbitrum.
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 Arbitrum node maintenance, scaling and availability.
FAQ
What is an Arbitrum node provider?
An Arbitrum node provider delivers managed blockchain infrastructure, giving developers instant access to the Arbitrum network without the burden of deploying and maintaining their own nodes. Instead of dealing with synchronization, storage requirements, software updates, and ongoing maintenance, teams can connect to reliable hosted endpoints and start building immediately.
What is an Arbitrum RPC node?
An Arbitrum RPC node provides blockchain access through Remote Procedure Call (RPC) endpoints. These endpoints allow developers to send transactions, retrieve block and transaction data, query account information, interact with smart contracts, and monitor network activity. RPC access is the standard way wallets, dApps, DeFi protocols, NFT platforms, and other blockchain applications communicate with the Arbitrum network.
Should I run an Arbitrum node myself?
Running your own Arbitrum node is not necessary for most projects. Operating a node requires storage capacity, constant synchronization, security monitoring, and dedicated DevOps resources. These requirements often make self-hosted nodes costly and time consuming, particularly as your project grows.
What Arbitrum APWhat Arbitrum APIs does NOWNodes support?Is does NOWNodes support?
NOWNodes provides Arbitrum RPC API, BlockBook API, BlockBook WebSocket (WSS), and Debug API through reliable, enterprise-grade infrastructure. These services enable developers to broadcast transactions, retrieve block and transaction data, access indexed blockchain information, receive real-time updates via WebSocket, and perform advanced debugging and node diagnostics.
You can try the interfaces even before purchasing our API through Testnet. There is a whole nodelist of our service https://nownodes.io/nodes.
How do I start using an Arbitrum node?
After logging in NOWNodes and selecting a plan you need to navigate to the Dashboard in your account and scroll down the page. There you will see the button Add a New Key. Just push the button and your API key will be ready to use.
Can I access Arbitrum infrastructure for free?
Yes, you can start with our START plan that gives access to shared crypto nodes with 100,000 requests for one month.
