West African Currency Rates Unified: 25 Years of Central Bank Data in One API

West African currency data was historically expensive and fragmented—requiring either $50/month subscriptions or manual spreadsheet assembly from central bank websites. This new unified API aggregates 25 years of official FX rates across 11 countries in a single, consistent JSON schema, sourced directly from issuing central banks. For fintech developers and economic researchers, this removes a critical barrier to building products and analyses on an economically volatile region.