“A dynamic list of more than 650 open access polices and their dates of adoption can be found in Wikidata: https://w.wiki/8DF. The list contains many facts first collected in the UK-based Registry of Open Access Repositories Mandates and Policies (ROARMAP)….”
“This web site allows the comparison of any Open Access (OA) policy registered in ROARMAP database with the Horizon2020 funding program OA requirements.
Data are fetched directly from the ROARMAP web site and web API.
The criteria used to determine the level of compliance of a ROARMAP-classified policy with H2020 OA requirements have been documented in this document ….”