Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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AI SDK
Provider-agnostic TypeScript toolkit for building AI apps and agents with any LLM.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Pillow
The friendly PIL fork that adds image processing capabilities to Python
Streamdown
A drop-in react-markdown replacement built for AI-powered streaming interfaces.
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
proxy-agent
Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.
@clickhouse/client
The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.
use-stick-to-bottom
Zero-dependency React hook and component that keeps AI chat scrolled to the bottom as content streams in.
LangChain.js
The TypeScript framework for building LLM-powered apps and AI agents from interoperable, swappable components.
asyncpg
A fast PostgreSQL database client library for Python built directly on asyncio, implementing the PostgreSQL binary wire protocol natively for high-throughput async applications.
Datasets
One-line loading and fast, Arrow-backed processing for thousands of ML datasets
OpenRouter AI SDK Provider
The official OpenRouter provider for the Vercel AI SDK, unlocking 300+ LLMs through one unified TypeScript client.
LangChain DeepSeek
The official LangChain integration package for DeepSeek chat and reasoning models.
LangChain
The most widely adopted Python framework for building LLM-powered agents and applications
http-proxy-middleware
The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.