That's a bit hard to do, since you are essentially a new account and there's no reason anyone would trust your "licence".
And is there even a need for a licence in the space? Trustworthy exchanges will have their calculation code open for everyone, then knowledgeable people will go through the code for free and post about it in forums.
If something bad is found, it'll circulate the internet quickly, a customer only needs to search for it.