UISP CRM API
The UISP CRM API is the per-instance REST API for the customer-relationship-management half of UISP, covering clients, services (subscriptions), invoices, payments, quotes, tickets, jobs, taxes, and product/service plans. Endpoints are served from each UISP instance under `/crm/api/v1.0/`. Authentication uses an `X-Auth-App-Key` header carrying an App Key generated under Settings → Security → App keys. The full reference is mirrored on Apiary at unmscrm.docs.apiary.io.