What is an API request? How many do I need?


If you've checked out our pricing page, or the historical data ordering tool in our API Toolkit, you'll have likely noticed we talk about 'requests' in reference to our TMY data product.

In the simplest of terms, 1x request = 1x TMY file for 1x location.

However, in order to determine how many requests you'll need, you may need to consider more than just the number of locations you need data for.

Each of our response formats (API speak for 'file format') count as their own request.

This means, if you need both a CSV and a JSON file for your location, you will need two requests (1x location and 2x file formats).

So the maths for figuring out how many API requests you need per month works out to be:

Locations * File Formats Per Location = API Requests Required

Read more about our response format options in the API Toolkit or in the docs.

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