The full list of all current IFSF standards are given below in numerical order. Since there are many, you may find it easier to find the standard you are looking for using the graphical representation for the non-API standards here or the API standards here.
If you are looking for draft payment standards currently under development please look in the EFT Work Group area or for all other standards developed jointly with Conexxus look in the OpenRetailing GitLab. The OpenRetailing API Data Dictionary can also be found in the OpenRetailing GitLab.