I'm trying to use the Koha API, and no matter what I get an HTTP 406. Specifically, I'm trying to setup catalog harvesting for EBSCO. I look for this sample biblio: https://catalog.york.edu/api/vi/public/biblios/3555 I **AM** including a valid content-type header. I tried ALL of the allowed content types, but no matter what I see 406 response. I tried with curl, postman, chrome's network tool, powershell, and they all give the same result. It works if I'm logged in and using the regular (non-public) route, but the public API seems broken here. What am I missing? *Joel Coehoorn* Director of Information Technology *York University* Office: 402-363-5603 | jcoehoorn@york.edu | york.edu *Please contact helpdesk@york.edu <helpdesk@york.edu> for technical assistance.* The mission of York University is to transform lives through Christ-centered education and to equip students for lifelong service to God, family, and society