The BIS is an international organization founded in 1930 charged with fostering international monetary and financial cooperation. It also acts as a bank for central banks. At present, 60 national central banks and the ECB
ECB
European Central Bank
The European Central Bank is a European institution based in Frankfurt, founded in 1998, to which the countries of the Eurozone have transferred their monetary powers. Its official role is to ensure price stability by combating inflation within that Zone. Its three decision-making organs (the Executive Board, the Governing Council and the General Council) are composed of governors of the central banks of the member states and/or recognized specialists. According to its statutes, it is politically ‘independent’ but it is directly influenced by the world of finance.
https://www.ecb.europa.eu/ecb/html/index.en.html
are members.