API for a currency exchange dashboard

Hi everyone,

I designed a dashboard that displays currency exchange for various currencies in relation to BRL, but while I had no problems building the front-end, I’m wondering how I can make the dashboard actually works of what is intended for: display real-time currency exchange. Does anyone have a suggestion for a free API? I will assume I will need to use the CMS plan for this. If it’s possible to avoid it, even better actually.

Thanks in advance

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