The latest articles on DEV Community by scru (@scru). https://dev.to/scru https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3830341%2F1f6a14f1-b77f-4f67-b36f-1f5bef1833ac.jpg https://dev.to/scru en scru Wed, 18 Mar 2026 03:41:59 +0000 https://dev.to/scru/i-built-a-stock-market-data-api-with-fastapi-heres-what-i-learned-2mjb https://dev.to/scru/i-built-a-stock-market-data-api-with-fastapi-heres-what-i-learned-2mjb <h2> What I built </h2> <p>A REST API that gives developers access to real-time stock <br> quotes, historical data, technical indicators, and crypto <br> prices. Built with FastAPI and deployed on Railway.</p> <h2> Endpoints </h2> <ul> <li> <code>GET /stocks/quote/{symbol}</code> — live price, volume, change</li> <li> <code>GET /stocks/history/{symbol}</code> — OHLCV going back years</li> <li> <code>GET /stocks/indicators/{symbol}</code> — RSI, MACD, SMA, EMA</li> <li> <code>GET /stocks/info/{symbol}</code> — market cap, P/E, sector</li> <li> <code>GET /crypto/quote/{symbol}</code> — crypto prices</li> <li> <code>GET /market/movers</code> — top gainers and losers</li> <li> <code>POST /stocks/batch</code> — multiple symbols at once</li> </ul> <h2> Tech stack </h2> <ul> <li>FastAPI (Python)</li> <li>yfinance for data</li> <li>PostgreSQL on Railway</li> <li>Stripe for billing</li> <li>slowapi for rate limiting</li> </ul> <h2> Try it free </h2> <p>100 requests/day, no credit card required.</p> <p>👉 <a href="https://thisapi-production-d755.up.railway.app" rel="noopener noreferrer">https://thisapi-production-d755.up.railway.app</a></p> python api webdev beginners