Re: [tor-relays] Reimbursement of Exit Operators

Unless maybe stem already does exactly this for us?

Yup, stem parses the extrainfo descriptors... https://stem.torproject.org/api/descriptor/extrainfo_descriptor.html#stem.de... The only pesky bit is that you'll need to download a lot of descriptors from metrics (I assume you need the entries published over a long period of time?).