--- title: "APIs and protocols" slug: "apis-protocols" updated: 2026-05-06T05:59:24Z published: 2026-05-06T05:59:24Z canonical: "docs.grassfish.com/apis-protocols" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.grassfish.com/llms.txt > Use this file to discover all available pages before exploring further. # APIs and protocols The Grassfish platform covers all common integration patterns, from classic web services to modern REST APIs. It can also be adapted to customer-specific protocols and formats via plugins and additional services. ****REST/HTTPS**** REST/HTTPS (JSON) is the standard for all new APIs (GUI API, Player API, Versioned API, AdServing API, etc.). ****SOAP/Web services**** SOAP/Web services (XML) can be supported via adapters or plugins, especially in legacy or custom integrations. ****File-based integrations**** File-based integrations (CSV, JSON, XML, Excel) are handled by the local importer or UDC. Universal Data Controller, a system component that manages the import of external data into the IXM system.