Crypto dashboards, alerts and portfolio trackers all need the same boring thing first: a clean list of coins with price, market cap, volume and recent change. The usual path is signing up for a data plan and babysitting an API key. You often do not need to. The keyless endpoint CoinGecko serves a public market endpoint that returns a tidy array of coins: GET https://api.coingecko.com/api/v3/coins/markets ?vs_currency=usd&order=market_cap_desc&per_page=250&...