Cumulus
A framework for building parachains that connect to the Polkadot and Kusama relay chains using Substrate.
What is Cumulus?
Cumulus is a framework for building parachains—specialized blockchains that connect to and are secured by the Polkadot and Kusama relay chains. It extends the Substrate blockchain development framework with parachain-specific functionality, enabling developers to create interoperable blockchains that leverage Polkadot's shared security and cross-chain communication capabilities.
Blockchain developers and teams building custom parachains that need to integrate with the Polkadot or Kusama networks, particularly those already familiar with Substrate development.
Cumulus provides the essential tooling and components needed to transform any Substrate-based blockchain into a fully functional parachain, significantly reducing the complexity of connecting to Polkadot's relay chain while maintaining full compatibility with Substrate's flexible development environment.
Overview
Write Parachains on Substrate
Use Cases
Best For
- Teams building custom blockchains that need Polkadot's shared security
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