chainsafe/smoldot

Smoldot is a lightweight client for Substrate-based blockchains like Polkadot and Kusama, offering both a JavaScript package for browser/NodeJS/Deno environments and a Rust library for platform-agnostic use. It's designed for developers building decentralized applications or tools that need to interact with these networks without running a full node, providing a stable API for the JavaScript component and serving as an alternative to the official clients.