Common functions used across Polkadot, derived from RPC calls and storage queries.

Implements the JSON-RPC methods for managing permissions as referenced in EIP-2255 and MIP-2 and inspired by MIP-5, but supporting chain-agnostic permission caveats in alignment with @metamask/multichain-api-middleware

Higher order iterator library for JavaScript/TypeScript.

Add a chain by using the add command

Lightning-fast file type detection using magic bytes (file signatures) with a focus on stream processing and minimal memory usage

Avalanche Platform JS Library

A powerful web scraper for both static and client-side rendered sites using only Bun native APIs

run-script-os is a tool that will let you use generic npm script commands that will pass through to os specific commands.

SPL Account Compression Program JS API

Chain Registry types

A shim to insulate apps from WebRTC spec changes and browser prefix differences

Distributed task scheduler and rate limiter

A WebAssembly polyfill for the Barcode Detection API

High-quality reusable types and utilities for ES development

create a pipeline of streams using Minipass

Listen to USB devices and detect changes on them.

A javascript QR scanner library

Defines a CAIP-25 based endowment permission and helpers for interfacing with it

AI Agent Governance for TypeScript — policy enforcement, scoring, compliance, and audit for AI agents

Frame Processor Plugin to detect faces using MLKit Vision Face Detector for React Native Vision Camera!