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 ## Data Visualization on Maps
 
+   * [IP Geolocation](https://ipgeolocation.io/) — Free DEVELOPER plan available with 30K requests/month.
    * [carto.com](https://carto.com/) — Create maps and geospatial APIs from your data and public data.
    * [datamaps.world](https://datamaps.world/) — The simple, yet powerful platform that gives you tools to visualize your geospatial data with a free tier.
    * [developers.arcgis.com](https://developers.arcgis.com) — APIs and SDKs for maps, geospatial data storage, analysis, geocoding, routing, and more across web, desktop, and mobile. 1,000,000 free basemap+geocode transactions, 40GB free tile+data storage per month.
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 ## Payment and Billing Integration
 
+  * [CurrencyFreaks](https://currencyfreaks.com/) — Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.
   * [currencyapi.net](https://currencyapi.net/) — Live Currency Rates for Physical and Crypto currencies, delivered in JSON and XML. Free tier offers 1,250 API requests/month.
   * [currencylayer.com](https://currencylayer.com/) — Reliable Exchange Rates and Currency Conversion for your Business, 1,000 API requests/month free
   * [currencystack.io](https://currencystack.io/) — Production-ready real-time exchange rates for 154 currencies.