Are you sure that this API is capable of displaying information from the mempool?
I don't think so, I believe this one is just for confirmed txs.
This is not meant to be used as is in a real scenario, although you could probably consider it a ground work to expand upon.
The goal was to actually see how long the whole operation can take using different tools.
In my end it took rougly a minute to go from a public key on the web to a 70 bit private key stored in a .txt file.
Probably not the best performance too, but scary nevertheless.
