An LDAP (Lightweight Directory Access Protocol) to SCIM (System for Cross-domain Identity Management) proxy service is provided. The LDAP to SCIM proxy service receives an LDAP request from an LDAP-based application running on an LDAP-based application server, translates the LDAP request to a SCIM request, and forwards the SCIM request to a SCIM server within the IDCS. The LDAP to SCIM proxy service then receives a SCIM response from the SCIM server within the IDCS, translates the SCIM response to an LDAP response, and forwards the LDAP response to the LDAP-based application.