This looks like it clearly violates imgur's TOS. Did you get consent from imgur to use them for this purpose?
"For the sake of clarity, you agree not to use, display, distribute, license, perform, publish, reproduce, duplicate, copy, create derivative works from, modify, sell, resell, exploit (including, without limitation, for A.I. machine learning purposes), transfer or transmit for any commercial purposes/machine learning purposes, any portion of our service (including, our App, Website, and UGC), use our service (including, our App, Website, and UGC), or access our service (including, our App, Website, and UGC). Our service (including, our App, Website, and UGC) is for your personal use and may not be used for direct commercial endeavors without the express written consent of us. For the sake of clarity, if you desire to use, display, distribute, license, perform, publish, reproduce, duplicate, copy, create derivative works from, modify, sell, resell, exploit (including, without limitation, for A.I. machine learning purposes), transfer or transmit our service (including, our App, Website, and UGC), any portion of our service (including, our App, Website, and UGC), or access to our service (including, our App, Website, and UGC) for any commercial purpose, including without limitation AI machine learning, use on AI platforms, etc., you must first obtain our express signed written consent prior to such use."
From what I can tell, the "serpapi" primary offering is violating Google search ToS.
You don't need to get consent, you can just use it until they terminate your account.
grifters gotta grift.