Thanks a lot, I wasn't sure about the process in this case. (Also thank you for adding the line, I have adjusted the link.)

@RKemper : Yes, thank you for fixing the problem with the error message "endpoint is not allowed" in the first 5-10 runs. The queries now work right the first time, that’s really great! (e.g. https://w.wiki/9Ki5 or https://purl.org/mmt/federation/tq1) Could our endpoint be listed on this page: https://www.mediawiki.org/wiki/Wikidata_Query_Service/User_Manual/SPARQL_Federation_endpoints?

@HinMar Thanks, that context is helpful. I'm merging the patch now; if you could provide an example query to validate that things are working as intended that'd be great!

@RKemper : Thank you for your message. The project has ended, but we still kindly ask you to whitelist this endpoint. We at the Trier Center for Digital Humanities will continue to work with LOD beyond this one project and would be delighted to be able to run federated queries starting from Wikidata directed towards the MiMoTextBase. We have developed an approach in MiMoText that we now want to transfer and adapt for other domains in a new project (“LODinG” – Linked Open Data in the Humanities). We are still very interested in the 'wikiverse' and in gaining as much experience as possible in the area of 'federation', which we see as the absolute key to the LOD vision. We are also planning to provide a showcase and if the whitelisting could be done relatively soon, we would like to include this new 'federation direction'. Can you estimate how long it will take?

I would like to share the information that our project will expire at the end of 2023. We would like to include federated queries in the direction of "Wikidata -> MiMoTextBase" (the other direction is already integrated) into our SPARQL tutorial. If it is possible to know approximately how long it will take, that would be interesting for us. Thanks a lot for your help!