Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

92Health
SDK npm

@clickhouse/client

The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.

331
Apache 2.0
Used by 38
91Health
Framework Go

Echo

A minimalist, high-performance Go web framework with a radix-tree router, built-in middleware chain, and first-class HTTP/2 support.

32,705
MIT
Used by 13
52Health
SDK npm

@neondatabase/serverless

Neon's serverless PostgreSQL driver for JavaScript and TypeScript, built for edge and serverless runtimes using HTTP and WebSockets instead of raw TCP.

548
MIT
Used by 5
91Health
Framework PyPI

LlamaIndex

The leading data framework for building LLM applications over your own data.

52,160
MIT
Used by 3
96Health
Framework PyPI

Apache Airflow

Programmatically author, schedule, and monitor data workflows as Python-defined DAGs.

46,854
Apache 2.0
Used by 3
44Health
SDK npm

astra-db-ts

The official TypeScript client for DataStax Astra DB, giving typed access to vector search, JSON collections, and CQL-backed tables via the Data API.

30
Apache 2.0
Used by 3
91Health
SDK PyPI

llama-index-llms-openai-like

LlamaIndex LLM integration for any OpenAI-compatible API endpoint, via the OpenAILike class.

52,160
MIT
Used by 2
45Health
Framework npm

kea

Batteries-included state management for React, built on Redux with hooks, plugins, and automatic mount/unmount lifecycles.

1,991
MIT
Used by 2
62Health
SDK npm

Durable Streams Client

TypeScript client for the Durable Streams protocol — resumable, offset-based HTTP streaming with exactly-once writes and live SSE/long-poll tailing.

1,694
Apache 2.0
Used by 2
89Health
Framework PyPI

Scrapling

Adaptive Python web scraping framework with anti-bot fetchers and a spider crawling engine

80,950
BSD 3
Used by 1
87Health
SDK npm

yahoo-finance2

Unofficial TypeScript client for Yahoo Finance data — quotes, historicals, and fundamentals — with a bundled CLI and MCP server.

797
MIT
Used by 1
69Health
SDK PyPI

azure-kusto-python

Python client library for querying and streaming results from Azure Data Explorer (Kusto) clusters using KQL.

204
MIT
Used by 1

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers