The Open Exchange Rates alternative
with intelligence built in.
Open Exchange Rates locks non-USD base currencies behind paid plans and offers no analytics, PPP, AI, or MCP. CurrencyCore gives you any-base conversions, 75+ years of history, purchasing-power-parity analysis, analytics, and natural-language AI queries on a single platform.
1,000 requests + 100 AI credits/month free · Any base currency included
# Re-express rates with EUR as base (free on all plans)
curl "https://api.currency-core.com/v1/rates/EUR" \
-H "Authorization: Bearer YOUR_KEY"# Historical rates — Starter plan and above
curl "https://api.currency-core.com/v1/history?currency=GBP&from=2020-01-01&to=2025-01-01" \
-H "Authorization: Bearer YOUR_KEY"curl -X POST https://api.currency-core.com/v1/ai \
-H "Authorization: Bearer YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"q":"Which currencies remained stable against USD in 2024?"}'Beyond the basics.
Same core FX data, with the tools modern applications actually need.
| Feature | CurrencyCore | Open Exchange Rates |
|---|---|---|
| Live exchange rates | ||
| Any base currency (free) | USD base only on free | |
| Historical data | 75+ years · Starter+ | paid plan |
| PPP analysis | ||
| Analytics suite | ||
| AI natural-language queries | ||
| MCP server for AI agents |
From rates to intelligence.
Six capabilities that go beyond a spot rate lookup.
Any base currency, any plan
Re-express rates against EUR, GBP, JPY, or any other base on every plan including free. No USD lock-in, no triangulation required.
75+ years of history
ECB-sourced rates back to 1949 with carry-forward resolution. Full history available on Starter plan. Free tier includes the last 30 days.
PPP-adjusted pricing
IMF purchasing-power-parity factors for 180+ countries. Add ppp=true to localize any price to its fair-market equivalent.
Volatility and correlation
Annualized FX volatility, currency stability rankings, and Pearson correlation between any pair over any time window.
AI-powered queries
Ask complex currency questions in plain English. Trend analysis, rankings, PPP comparisons, all backed by real data.
Native MCP server
Connect AI agents over Model Context Protocol. Works with Claude, Cursor, and Windsurf on every plan.
Common questions
Can I switch from Open Exchange Rates to CurrencyCore easily?
Yes. CurrencyCore covers the same convert and rates endpoints. The main differences are any-base support on all plans, the expanded historical dataset, and the additional analytics and AI endpoints.
Why does any base currency matter?
USD-only base APIs require client-side triangulation for non-USD pairs. CurrencyCore re-expresses rates against any base currency server-side, returning accurate cross-rates without extra computation.
Does CurrencyCore have a free tier with historical access?
The free tier supports point-in-time rate lookups for the last 30 days. Full 75+ year history via /v1/history requires Growth plan. Analytics and AI also require Growth plan.
What is the PPP flag?
Adding ppp=true to any convert call returns the purchasing-power-parity equivalent using IMF World Economic Outlook factors. Useful for localized SaaS pricing.
Any currency, any base,
with intelligence on top.
Free tier: 1,000 requests + 100 AI credits/month. No credit card required.