Eyal Rosenthal · Web scraping at scale

CoinGecko Market Monitor

CoinGecko Market Monitor — Crypto Price + Market-Cap Rank Diff Alerts

CoinGecko Market Monitor

Track top-N coins by market cap via CoinGecko's free public API. Maps to "crypto price monitoring / portfolio alerts / market-cap rank tracking" briefs.

Built 2026-05-03 as Demo #26.

Run

. ~/freelance/.venv/bin/activate
cd ~/freelance/portfolio_demos/coingecko_market_monitor
python monitor.py --reset
python monitor.py --once

Result

  • 50 top coins tracked by market cap ✅
  • Idempotent re-run, 4 simulated price deltas detected ✅
  • Use cases: rank-shift alerts (coin enters/exits top-N), big 24h moves, ATH-distance shifts ✅
  • Pattern adapts to CoinMarketCap, Binance ticker API, any market-data API ✅

Hire me to build this for your stack

Same patterns, your target site. Send the brief and I'll quote fixed-price within 24 hours.

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