Best Kusama RPC Nodes, APIs and Blockchain Node Hosting

Parity

Polkadot's canary network

Connect in seconds to Kusama via OnFinality's elastic API with a high availability of 99.99% uptime per year. Deploy full, validator, and archive Kusama nodes quickly and easily on our globally distributed, multi-cloud, one-click node solution. Use OnFinality's Lightning Restore to fully-sync your nodes in seconds instead of days!

Polkadot's canary network

Connect to API Service Deploy Dedicated Node

API Service

API Features

ArchiveTrace

API Based In

N.VirginiaFranceHong Kong

Dedicated Nodes

Node Type

FullArchiveValidator

Lightning Restore

N.VirginiaFranceHong Kong

Node Endpoints

JSON-RPCWebSocketsMetrics

Kusama is a scalable network of specialized blockchains built using Substrate and nearly the same codebase as Polkadot. The network is an experimental development environment for teams who want to move fast and innovate on Kusama, or prepare for deployment on Polkadot.

Resources

OnFinality's Kusama Validators

Additional Info

Project Website

Documentation

Kusama 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.

Open In Polkadot JS

* 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.

Kusama API Service

Kusama Dedicated Nodes

Monthly Response Units

0100M200M300M400M

Total Cost

Free/ Monthly

Recommended Plan: Developer

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

BLOG

Latest Kusama Updates!

OnFinalityJun 06,2025

Understanding Polkadot’s System Chains

System chains are specialised Parachains that handle core protocol functions, offloading work from the Relay Chain to improve overall network performance. By moving key logic to these chains, Polkadot leverages its parallel execution architecture to scale efficiently.

OnFinalityJul 18,2023

Unlock the Future of NFTs with OnFinality's Unified NFT API

OnFinality, a multi-chain infrastructure provider, launches a game-changing Unified NFT API, enabling developers to access cross-chain data effortlessly!

OnFinalityMay 25,2023

OnFinality accelerates assets transfers on Polkadot and Kusama with Statemint and Statemine!

OnFinality, a multi-chain infrastructure provider, empowers web3 builders on Statemint, Statemine and Westmint with scalable APIs and a one-click node solution.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools