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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passport
Simple, unobtrusive authentication middleware for Node.js with 480+ pluggable strategies.
node-mongodb-native
The official MongoDB driver for Node.js: a typed, promise-based client for connecting to and querying MongoDB from JavaScript and TypeScript.
postgres
Postgres.js is a zero-dependency PostgreSQL client for Node.js, Deno, Bun, and Cloudflare Workers built on ES6 tagged template literals.
gray-matter
Fast, dependable front-matter parser for YAML, JSON, TOML, and CoffeeScript metadata blocks
prom-client
The de facto Prometheus client library for instrumenting Node.js applications with counters, gauges, histograms, and summaries.
cookie
Basic HTTP cookie parser and serializer for HTTP servers, with zero dependencies and full RFC 6265 support.
toml
A native Rust encoder and decoder for TOML with first-class Serde support.
mocha
The classic, battle-tested JavaScript test framework for Node.js and the browser, built around flexible async testing and pluggable reporters.
mypy
Optional static type checker that catches Python bugs before you run your code
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
express-rate-limit
Basic IP rate-limiting middleware for Express to throttle repeated requests and protect public APIs and sensitive endpoints.
quote
The quasi-quoting library that turns Rust syntax into token streams for procedural macros.
zod-to-json-schema
Converts Zod validation schemas into standard JSON Schema, ready for OpenAPI, OpenAI, and JSON Schema draft 7 consumers.
csv-parse
A flexible, dependency-free CSV parser for Node.js and the browser with stream, callback, and sync APIs.
Psycopg
The modern PostgreSQL adapter for Python, with native async and pipeline support
ignore
A pure JavaScript manager, filter, and parser for .gitignore-style rules, built exactly to the gitignore spec.
Flask
A lightweight WSGI web framework for Python that scales from a single file to complex applications.
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.
JSON5
JSON for humans: an extended JSON syntax with comments, trailing commas, and unquoted keys for hand-written config.
@azure/identity
Microsoft Entra ID credential library that authenticates every Azure SDK client, from managed identity in production to CLI and browser login in development.
NestJS
A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.
LiteLLM
Call 100+ LLM APIs from OpenAI to Anthropic to Bedrock through one unified, OpenAI-format Python interface.
jsonschema
The reference implementation of JSON Schema validation for Python, supporting every draft from 3 to 2020-12.
