It's really easy to use RapidAPI to start consuming APIs in your app. Using RapidAPI, you can consume any API using a unified, REST format that is easy to understand and embed in your app. Moreover, you can view all of the APIs you are connected to using the dashboard, which monitors things like the number of API requests, latency, and error rates. For more on using APIs, check out our Basics - Your First API Call section or our RapidAPI for Developers page.
First you need to sign-up to RapidAPI and configure your account
Next step is to to add an app to your RapidAPI account
Than you need to integrate DistanceAPI to your newly added RapidAPI app
Last step is to start using DistanceAPI by making requests
After signing up to RapidAPI and adding your first app, you will find all relevant information to use DistanceAPI here.