Rosenpass received funding and support through the ProtoType Fund's 14th round. The ProtoType Fund is a project of the Open Knowledge Foundation Germany, funded by the Federal Ministry of Education and Research (BMBF).

Rosenpass is also funded through NLnet's NGI Assure Fund, with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement N^o 957073.