{"message":"Rate Currency API v3","features":["fiat & crypto pairs","24h % change","concurrent fetching"],"endpoints":["/rate","/convert","/health"],"examples":["/rate?from_currency=BTC&to_currency=NGN","/rate?from_currency=USD&to_currency=XOF","/convert?amount=2&from_currency=NGN&to_currency=XAF","/convert?amount=0.5&from_currency=BTC&to_currency=XOF"]}