How can I convert currency using an API or some workflow?

[Laragón]

I'm currently working on creating records for a custom object called "Recurring Invoices" based on records from another custom object named "Services." I retrieve data from "Services" to create the "invoices," but the invoices sometimes have their total amount in Mexican pesos and sometimes in Colombian pesos. However, I want to save this amount in dollars. How can I ensure that the amount saved is equivalent to dollars?

Hubspot provide some solutions for this case?

[SAMsan · Accepted solution]

You can do so by using an external API, a workflow and a Custom Code action. 
https://developers.hubspot.com/docs/api/workflows/custom-code-actions