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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Axios
Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation
Express
The fast, unopinionated, minimalist web framework for Node.js
OpenTelemetry JavaScript (@opentelemetry/api)
Vendor-neutral tracing, metrics, and context API that libraries and apps instrument once, so any OpenTelemetry-compatible backend can consume it.
Stripe Node.js Library
The official Node.js and TypeScript library for the Stripe API, giving developers a fully typed client for payments, billing, and Connect.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
MSW (Mock Service Worker)
Seamless REST and GraphQL API mocking for browser and Node.js
Prisma Client
Auto-generated, type-safe database client for Node.js and TypeScript.
@slack/web-api
Slack's official Node.js HTTP client for calling any of the 270+ Web API methods, with built-in queuing, retries, pagination, and rate-limit handling.
tRPC Server
Build end-to-end typesafe APIs in TypeScript with no schemas, no code generation, and zero runtime bloat.
google-api-nodejs-client
Google's officially supported Node.js client library for calling hundreds of Google APIs with built-in OAuth 2.0, API key, and service-account auth.
fast-xml-parser
Pure-JS XML parser, builder, and validator with no C/C++ bindings and no callbacks
Pinia
Intuitive, type-safe, and flexible state management store for Vue applications.
express-rate-limit
Basic IP rate-limiting middleware for Express to throttle repeated requests and protect public APIs and sensitive endpoints.
zod-to-json-schema
Converts Zod validation schemas into standard JSON Schema, ready for OpenAPI, OpenAI, and JSON Schema draft 7 consumers.
Fastify
A fast and low-overhead web framework for Node.js, built around schema-based validation and a plugin architecture