Building a Finviz Alternative With Claude Code and EODHD API

A developer built FinView, an open-source Finviz alternative, using Claude Code and the EODHD API to consolidate stock market data into a single dashboard. The tool addresses the fragmentation of financial data by providing real-time prices, fundamentals, and historical data through one API, enabling features like a stock screener, heatmap, and company analysis pages. The project demonstrates how AI-assisted development can reduce boilerplate code, allowing engineers to focus on product design and data integration.

Most investors think they need more tools to make better decisions. The truth is different. If you're: you don't have a tools problem. You have a fragmentation problem. A typical investing workflow looks like this: Too many tabs. Too much context switching. The more fragmented the workflow, the harder it is to spot opportunities. So instead of opening five different tools every morning, I built one: FinView , an open-source Finviz alternative powered by Claude Code and the EODHD API. Developers building their own stock market dashboard usually hit the same wall. Data is scattered across providers. Real-time prices come from one source, fundamentals from another, historical data from a third. Stitching that together used to take weeks. The real problem isn't a lack of financial data. It's the lack of a single, reliable source feeding a clean structure. That's the gap FinView was built to close: one dashboard, one API, every workflow a Finviz user expects. The goal was simple: answer five questions without leaving one screen. The homepage gives an instant read on market conditions: Before looking for opportunities, you need to understand the environment. This section does that in seconds. Finviz's screener is its most-used feature, so FinView needed the same logic. Users can filter stocks by: Instead of manually scanning charts, the screener surfaces stocks hitting new highs, showing unusual volume, or leading the day's gainers and losers — instantly. This is the feature that does the most work with the least effort. A heatmap makes rotation visible at a glance: technology weak, utilities strong, financials leading, industrials outperforming. One visualization often reveals more than three market reports combined. Finding a stock is only step one. Understanding it is where decisions actually happen. Each company page shows market data, fundamental metrics, historical performance, and key company information — creating a clean path from discovery to analysis. The interesting part wasn't the dashboard. It was the process. Five years ago, a project like this meant: Weeks, sometimes months, of work. With Claude Code, most of that repetitive implementation got handled automatically. I focused on product design, architecture decisions, and data integration instead. This doesn't replace software engineering. It removes the boilerplate so the engineering that matters gets more attention. A dashboard is only as good as its data feed. FinView needed one provider that covered real-time prices, historical data, fundamentals, and global market coverage — without juggling three separate integrations. This is where the EODHD API fits in. It provides: A simplified example of pulling stock data: python import requests API KEY = "YOUR API KEY" symbol = "AAPL" url = f"https://eodhd.com/api/real-time/{symbol}?api token={API KEY}&fmt=json" data = requests.get url .json print data From here you can build: Looking for one API instead of five? EODHD gives you real-time prices, fundamentals, and historical data in a single REST API — no scraping, no rate-limit roulette. → Explore EODHD APIs indices = "^GSPC", "^IXIC", "^DJI", "^RUT" for symbol in indices: data = get market data symbol print symbol, data "close" This powers the market snapshot at the top of the dashboard. filtered = for stock in stocks: if stock "volume" 1 000 000 and stock "change percent" 5: filtered.append stock print filtered The production version supports far more filters, but the logic stays the same: retrieve data, apply conditions, display opportunities. Developers learn faster from real projects than from documentation alone. The FinView repository https://github.com/Kevinelectronics/finviz-clone-claude-code-eodhd demonstrates: If you're learning AI-assisted development or evaluating financial data APIs, it's a practical reference, not just a writeup. It was about leverage. AI development tools are changing the economics of building software. The gap between "I have an idea" and "I have a working product" is shrinking fast. Individual developers can now ship what used to require a full team. That shift changes who gets to build fintech tools — not just who gets to use them. ❓ Is FinView production-ready? ✅ It's primarily educational and experimental, but the architecture is solid enough to serve as a foundation for more advanced trading or research platforms. ❓ Which technologies were used to build it? ✅ Claude Code for development, the EODHD API for market data, and JavaScript/HTML/CSS for the frontend. ❓ Can I build a similar dashboard without AI tools? ✅ Yes. AI mainly reduces development time and automates repetitive implementation — understanding the underlying logic still matters. ❓ Why not just use Finviz? ✅ Finviz is a solid product. This project exists to learn AI-assisted development and build a customizable, open-source alternative you fully control. ❓ Is there a free tier for the EODHD API? ✅ Yes, EODHD offers a free tier suitable for testing screeners and dashboards before scaling to a paid plan. This started with one question: can Claude Code help build a Finviz-style platform from scratch? The answer was yes. The bigger realization was this: the future belongs to people who combine AI tools, reliable data sources, and domain expertise. When those three line up, the speed of creation becomes extraordinary. Explore the code, contribute, or build your own version: FinView on GitHub https://github.com/Kevinelectronics/finviz-clone-claude-code-eodhd Want the data layer behind FinView? Get real-time and historical market data, fundamentals, and global coverage through one simple API. → Start with EODHD