ECB Money Base
sum(L010000 + L020100 + L020200)
L010000 Banknotes in circulation - European Central Bank (ECB)
https://sdw.ecb.europa.eu/quickview.do?SERIES_KEY=ILM.M.4F.E.L010000.Z5.EUR
+
Series Key
ILM.M.AT.N.L020100.U2.EUR
Title
Current accounts (covering the minimum reserves system)
+
Series Key
ILM.M.U2.C.L020200.U2.EUR
Title
Deposit facility - Eurosystem