Logo

Best Sepolia RPC Nodes, APIs and Blockchain Node Hosting

Ethereum Sepolia Testnet

Connect in seconds to Sepolia via OnFinality's elastic API with a high availability of 99.99% uptime per year. Deploy full, validator, and archive Sepolia nodes quickly and easily on our globally distributed, multi-cloud, one-click node solution.

Ethereum Sepolia Testnet

Connect to API ServiceDeploy Dedicated Node

API Service

API Features

ArchiveTrace

API Based In

Hong KongN.VirginiaFrance

Dedicated Nodes

Node Type

Full

Node Endpoints

JSON-RPCWebSocketsMetrics

Ethereum's Sepolia Testnet

Resources

Additional Info

Project Website
Documentation

Sepolia Public Endpoint

The below example uses the public API endpoint*. This endpoint is only suitable for testing. To avoid rate limiting and service interruption, sign up now to get your own API key.
curl -H 'content-type:application/json' -d '{"id": 1, "jsonrpc": "2.0", "method": "eth_blockNumber"}' 'https://eth-sepolia.api.onfinality.io/public'
https://eth-sepolia.api.onfinality.io/public
wss://eth-sepolia.api.onfinality.io/public-ws
https://eth-sepolia.api.onfinality.io/beacon/public

* The public endpoint is rate limited

API SERVICE
Unlimited requests, high rate limits
Powerful API analytics
99.99% uptime
Connect via HTTPS or websocket
Decentralised servers hosted globally
Full archive access at no extra cost
PRICING

Calculate Your Costs

Only pay for what you need.

Million Standard Requests
0100M200M300M400M
Total Cost
$49/month

Recommended Plan: GROWTH

Continue with this plan
DEDICATED NODE
Sync chain state in seconds with Lightning Restore
Full control over your node
Extensive suite of monitoring tools
Pay-as-you-go flexibility

Latest Sepolia Updates!

View all blogs

Never Worry About Infrastructure Again!

OnFinality takes away the heavy lifting of DevOps so you can build smarter and faster.

Get Started!
LogoBuild and scale blockchain applications with reliable RPC, indexing, and data infrastructure from OnFinality.
linkedintwittertelegramblogyoutube

Get the latest product updates, technical insights, and key announcements delivered straight to your inbox.

By subscribing you agree to our Terms.
Supported Networks
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
View All
Product
API Service
Enterprise Node
Dedicated Node
Network Prototyping Tools
Supported Networks
Staking & Validators
AI Agent
Indexer Service
Company
About Us
Careers
Contact Us
Brand Kit
Blog
Resources
Documentation & Support
Support Centre
Network Status
Compare RPC Providers
Partner
Accelerator
© Copyright 2026 OnFinalityTerms of Service | Privacy Policy