# Extensions & Integrations
Extend EasyDCIM with first-party modules and integrate it with billing systems.
This section documents the official EasyDCIM extensions — from advanced monitoring, DNS, IPAM, IPMI, OS installation, password management and PDU/switch control to two-factor authentication, LDAP and the usage collector — alongside billing integrations for WHMCS and HostBill, plus references for developers building their own extensions.
# Documentation Sections
- Extensions Advanced Monitoring, DNS Management, HaloPSA, IP Address Management, IPMI, LDAP, OS Installation, Password Management, PDU Management, Switch Management, Two-Factor Authentication and Usage Collector.
- Extensions Development Sample EasyDCIM extension and sample agent extension for developers building their own modules.
- WHMCS Integration WHMCS provisioning modules and reselling configuration.
- HostBill Integration HostBill dedicated server and colocation modules.