Polyfill URL and URLSearchParams
Reduce custom identifiers with PostCSS.
Precondition checking utilities.
Streaming, source-agnostic EventSource/Server-Sent Events parser
Multi-chain cryptocurrency SDK for TypeScript — unified API for Bitcoin, Ethereum, Litecoin, Dogecoin, Bitcoin Cash, Polygon, Arbitrum, and any EVM-compatible chain. Create wallets, query balances, send transactions, and manage tokens and NFTs across UTXO
### npm
An open source Azure Storage API compatible server
MCP Server for Japan Business Intelligence — government statistics, economic indicators, holidays, and business day calculations
A cross-browser wrapper for the Web Audio API which aims to closely follow the standard.
HFS Plus string utilities
Ponyfill for upcoming Element.scrollIntoView() APIs like scrollMode: if-needed, behavior: smooth and block: center
An Event Manager
A small library for parsing and serialisation query strings
XS Advanced Container Security API for node.js
Custom element (web component) for playing video using the HTTP Live Streaming (HLS) format. Uses HLS.js.
A custom element for the Twitch player with an API that matches the `<video>` API
entity tag module
posix-specific core path module
Fast, portable image processing for Node agents.
TypeScript definitions for dom-speech-recognition
State management made super simple
Utility functions to build and interact with the Identify API
OpenAI plugin for LiveKit Node Agents
mime-types rewrite in TypeScript with ESM and CommonJS targets