Three ways to add a live crypto price ticker to a static site without a server

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A developer building a static site on Netlify explored three approaches to displaying a live cryptocurrency price ticker without a backend or signup requirement. The simplest method uses a direct fetch call to CoinGecko's free public API, though rate limiting and coin ID mapping quirks require careful handling and caching via sessionStorage. A serverless function placed in front of the API can serve as a shared cache for all visitors, reducing redundant calls when traffic increases. A third option is embedding a ready-made hosted widget, such as the one from The Coin Analysis, which requires no API key but demands attention to Content Security Policy headers, layout shift, and accessibility for users sensitive to motion. The developer recommends the hosted widget for decorative use cases and a self-managed fetch with a serverless function when price data is central to the product, noting that stale data with a timestamp is more useful to readers than an indefinite loading spinner.

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