To get random integer value from (a) to non-inclusive (b) use the following request with parameters:
from inclusive minimum value (integer)
to non-inclusive maximum value (integer)
for example:
Also, you may pass these parameters as GET/POST parameters

In response you will get the "random-value" Http Header with a random value, as well as http response body with the same random value.

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Here is the 512x512 pixel random bit generated image.