
FastAPI
Flask
Django
ExpressJS
Yii Framework
Bottle
Ruby on Rails
Laravel
Koyfin
FinViz
Simply Wall Street
Seeking Alpha
TradingView
Yahoo! Finance
Investing.com
Morningstar
Koyfin is a global market analytics platform for researching and understanding markets. From bottom-up fundamentals to top-down macro analysis, our platform, powered by Capital IQ, is trusted by more than 500,000 investors. We offer global coverage of equities, ETFs, Mutual Funds, analyst estimates, model portfolios, transcripts, filings, screeners, financials, charting, macro data and custom dashboards.
Our mission is to equip every investor in the world, no matter their size, with the best data and tools; empowering them to achieve more.
For more information, sign up for free at koyfin.com, contact help@koyfin.com, or follow us on Twitter at @KoyfinCharts.
FastAPI
KoyfinKoyfin is recommended for financial analysts, portfolio managers, individual investors, and anyone who requires detailed data analytics and visualizations for making informed investment decisions.
When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding.
The combination of Pydantic for data validation and built-in async support keeps our shared codebase clean, strictly typed, and reliable. But the biggest highlight for our cross-functional team is the automatic generation of interactive OpenAPI (Swagger) documentation. Our frontend and mobile developers no longer have to wait for backend engineers to manually update API docs; everything stays perfectly in sync automatically. It has drastically improved our team's communication and delivery speed.
Based on our record, FastAPI seems to be a lot more popular than Koyfin. While we know about 312 links to FastAPI, we've tracked only 4 mentions of Koyfin. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I used FastAPI, a Python framework built specifically for creating APIs quickly, with automatic validation and interactive documentation baked in. - Source: dev.to / 25 days ago
The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / 3 months ago
We had a feature in production where a single user request could run for five-plus minutes — fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the pipeline and streamed progress back to the browser over Server-Sent Events. - Source: dev.to / 4 months ago
FastAPI is a Python framework for building APIs quickly, efficiently, and with very little code. - Source: dev.to / 5 months ago
Backend: Python-based FastAPI for its asynchronous I/O capabilities and rapid JSON serialization. - Source: dev.to / 5 months ago
Thanks for the link, that was useful. I found there about koyfin.com which is for free and gives the summary info that I was after. Really spot on. Source: almost 4 years ago
My stock dashboard (koyfin.com) says 15.33% short interest. Which is correct? Also I think that number was around 25% recently so I guess that's come down? Source: over 4 years ago
Personally: For individual stocks: Koyfin.com (good for visualizing US ETFs as well but you won't have access to those anyway). Source: almost 5 years ago
Just stumbled upon koyfin.com too. It looks decent. Source: about 5 years ago
Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.
FinViz - Stock screener for investors and traders, financial visualizations.
Django - The Web framework for perfectionists with deadlines
Simply Wall Street - Easy stock and portfolio analysis
ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Seeking Alpha - Be the first to know about news and market moving analysis on the stocks you follow.