No RPS limits
There are no predefined RPS limits on paid plans. Throughput scales dynamically based on cluster capacity, without artificial throttling.
Sei (SEI) nodes and RPC explorer
Connect to the best Sei RPC with 99.95% uptime via NOWNodes. Get reliable Sei endpoints in minutes — with a free tier available.
Products
Shared
Dedicated
Networks
Mainnet
API Tools
Debug
Advanced API tools
Advanced APIs for Sei and all supported networks — from real-time WebSocket streams to deep historical and indexed data.
Flexible Sei API infrastructure
Clear pricing and shared infrastructure with no hidden limits or unexpected restrictions for Sei.
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 Sei node maintenance, scaling and availability.
FAQ
What is a Sei node provider?
A Sei node provider delivers managed blockchain infrastructure, giving developers instant access to the Sei 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 start building immediately.
What is a Sei RPC node?
A Sei RPC node provides access to the Sei blockchain through Remote Procedure Call (RPC) endpoints. These endpoints allow developers to broadcast transactions, retrieve block and transaction data, query on-chain information, and interact with the network programmatically. Managed RPC access enables developers to build wallets, DeFi applications, blockchain explorers, trading platforms, and other Web3 services without operating their own infrastructure.
Should I run a Sei node myself?
Running your own Sei 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 Sei APIs does NOWNodes support?
NOWNodes provides Sei RPC API, EVM API, Tendermint API, gRPC API, and Debug API through reliable, enterprise-grade infrastructure. These services enable developers to broadcast transactions, retrieve blockchain data, interact with EVM-compatible applications, communicate with the Tendermint consensus layer, build high-performance applications using gRPC, and perform advanced debugging and diagnostics without maintaining their own Sei nodes.
How do I start using a Sei 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 Sei API.
Can I access Sei infrastructure for free?
Yes. You can start with our START plan, which provides access to shared Sei infrastructure with up to 100,000 API requests per month.
