Build Db on Hubspot and integrate App via Api

We are about to launch our website on Hubspot and need to complete 3 tasks:
1. Integrate a currency converter API (Fixer) to our Website on Hubspot.
2. Create a fees/pricing database (that will use the currency converter, and deliver content to a pricing page - mentioned below). Extra context: it will be placed on dynamic pages. The module has already been built out in the template, but it’s not hooked up to a database. There is no need to create/style the module but it may need some tweaking. Also, whilst the API should automatically display the fees in the users currency, there’s a drop-down on this module so the currency can be manually changed.
3. Create a pricing page. The pricing page needs to have a drop-down where users can select the destination and be shown the pricing for that destination, so it needs a new module building that also pulls the info from the Hubdb.

Our tech and marketing teams are based in Argentina and UK and are available for questions and support.