Note: Match API are lifetime FREE since they're not designed to help you generate income.
100,000 hits per hour FREE, after that just $0.007 per hit credit. Deducted from your prepaid account.
You may get more free hits if the same data was processed < 10 seconds before you hit.
Hit this URL with all you got:

Inputs Variables (POST or GET as per your convenience)

Variable Value
apikey Your API Key generated when you Sign Up / Login

Output Variables (in the Universal JSON format)

Variable Value
matches

An array containing objects with the following elements:
Variable Value
unique_id The unique ID for this match
team-1 Team 1 in the match
team-2 Team 2 in the match
date Date the match is scheduled
matchStarted "true" if the match has started, else "false"