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Exchange Rate API — Real-time & Historical Currency Data
Free exchange rate API with 160 fiat, crypto + precious metals. Historical data back to 1999, batch conversion, time-series. No paywall on features competitors charge for.
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openapiapimcp
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llms.txt
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ai-plugin.json
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OpenAPI Spec
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OpenAPI Spec (preview)
{"openapi":"3.1.0","info":{"title":"Exchange Rate API","version":"1.0.0","description":"Real-time and historical exchange rates for 160 fiat currencies, precious metals, and top cryptocurrencies. Free base currency switching, historical data, time-series, and batch conversion. Data sourced from the European Central Bank and CoinGecko."},"components":{"schemas":{"HealthResponse":{"type":"object","properties":{"status":{"type":"string","enum":["healthy","degraded"],"description":"Overall health st