How to Build a Crypto Portfolio Tracker with Web Scraping

How to Build a Crypto Portfolio Tracker with Web Scraping Tracking your crypto portfolio across multiple exchanges and wallets is tedious. Let's build an automated tracker that scrapes real-time prices, calculates your P&L, and sends you alerts. What We're Building Real-time price scraping from CoinGecko and CoinMarketCap Portfolio value calculation with cost basis tracking Price alerts via email or Telegram Historical performance charts Setup pip install requests beautifulsoup4 pandas schedule The Price Scraper import requests import time from datetime import datetime class CryptoScraper : def __init__ ( self ): self . session = requests . Session () self . session . headers . update ({ " User-Agent " : " Mozilla/5.0 (Windows NT 10.0; Win64; x64) " }) def get_prices_coingecko ( self , coins ): """ Fetch prices from CoinGecko API (free tier). """ ids = " , " . join ( coins ) url = f " https://api.coingecko.com/api/v3/simple/price " params = { " ids " : ids , " vs_currencies " : " usd "