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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express-rate-limit
Basic IP rate-limiting middleware for Express to throttle repeated requests and protect public APIs and sensitive endpoints.
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
Psycopg
The modern PostgreSQL adapter for Python, with native async and pipeline support
scikit-learn
Simple and efficient tools for machine learning and data analysis in Python.
axum
Ergonomic and modular HTTP routing and request-handling framework for Rust, built on Tokio, Hyper, and Tower.
react-native-safe-area-context
A flexible way to handle safe area insets in React Native, with hooks and components that also work on Android and web.
Expo
Open-source framework for building universal native apps with React that run on Android, iOS, and the web.
pydantic-settings
Type-safe application settings management for Python, built on Pydantic models.
NextAuth.js
Open-source authentication for Next.js with OAuth, OIDC, email, and passkey sign-in.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
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.
Alembic
Database migrations tool for SQLAlchemy with autogenerate and transactional DDL
Bootstrap
The world's most popular front-end framework for building responsive, mobile-first sites
Fastify
A fast and low-overhead web framework for Node.js, built around schema-based validation and a plugin architecture
tokio-tungstenite
Asynchronous, Tokio-native WebSocket streams built on tungstenite
sentry-sdk
The official Python SDK for Sentry error tracking, performance monitoring, and tracing.
idna
Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding
pypdf
A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.
tenacity
A general-purpose Python retrying library that adds configurable retry behavior to almost anything
Charset Normalizer
A pure-Python universal charset detector that turns text of unknown encoding into clean Unicode.
SciPy
Fundamental algorithms for scientific computing, optimization, and statistics in Python.
attrs
Python classes without boilerplate — generate init, repr, equality, and more from declarative field definitions.
LangChain
The most widely adopted Python framework for building LLM-powered agents and applications
loguru
A drop-in replacement for Python's standard logging module that makes logging enjoyable, with almost no setup required.
