Platform-agnostic JSX channel engine for CopilotKit (createChannel, Thread, PlatformAdapter, ActionStore).

A plugin for the serverless framework which helps with configuring caching for API Gateway endpoints.

Plugin System Contracts - Pure types with 0 runtime dependencies

Express error handlers for JSON APIs

Polyfills the ResizeObserver API and supports box size options from the latest spec

remark plugin to remove markdown formatting

Plugin-owned human command registry for DeepSeek Harness UI surfaces

Handle beforeinstallprompt event in your PWA.

Make unhandled promise rejections fail hard right away instead of the default silent fail

Microsoft 365 Agents SDK for JavaScript

TypeScript definitions for react-outside-click-handler

Model Context Protocol implementation for TypeScript - Node.js middleware

A react native module that lets you to register a global error handler that can capture fatal/non fatal uncaught exceptions.

A React hook wrapper for Agent Handler Link.

(Legacy) JSON, JSON:API and REST Implementations of the Serializer Interface for use with @ember-data/store

Express timeout middleware that ensures a response is returned to the client on a timeout event.

Modern type-safe way of building CLIs

JS Library created to simplify using of GraphQL by using a defined structure for queries and mutations, instead of passing raw strings to the API handler

MetaMask Keyring API

A tiny helper for **Next.js** that gives you a **React hook** and an **API handler** to read the visitor's IP address.