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NexCurrency is an open-source converter that supports both fiat currencies and cryptocurrencies in one unified system.
It normalizes fiat and crypto prices into a shared `usdPrice` model, allowing conversions like fiat → crypto, crypto → fiat, and crypto → crypto without needing direct pairs.
Built with Next.js 14, TypeScript, and Tailwind CSS. Data comes from Frankfurter and CoinGecko.
NexCurrencyOpen-source fiat and crypto currency converter
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Hey everyone! I built NexCurrency as a small experiment in combining fiat and crypto conversion in one system. One interesting challenge was handling the differences between fiat APIs (which usually return pair-based exchange rates) and crypto APIs (which return USD prices per asset). The solution was normalizing everything into a shared `usdPrice` model. The project is fully open source and...
NexCurrencyOpen-source fiat and crypto currency converter