From the MLSec / Combine project, I am attempting to add OSINT to a pre-made campaign 'Combine' using the V1 Api. Verbosely, Combine lets me know that each IP it attempts to add to CRITs is not getting added, and from the ssl_access log I get:

35.239.109.188 - - [14/Aug/2020:13:34:56 -0400] "POST /api/v1/ips/ HTTP/1.1" 404 26812 "-" "python-requests/2.24.
This is the case every time it tries to add an IP

My best guess is that the request to /api/v1/ips/ is 404'ing. Is /api/v1/ not used anymore or outdated? I have ensured that the vocabulary between Combine and CRITs sync up, but that was confirmed using information that is outdated by about 4 years at this point. The user who's API key I am using has "Combine" as a source.

Does anybody use Combine, and could they give me some pointers? Additionally, I'd love to know of other sources for samples/OSINT that are commonly used with CRITs