Phoenixml 

XQuery 4.0 query engine for PhoenixmlDb

XSLT 4.0 transformation engine for PhoenixmlDb

Core types, XDM data model, and interfaces for PhoenixmlDb document database

Command-line XQuery 3.1/4.0 processor — query XML documents from the terminal

Command-line XSLT 3.0/4.0 processor — transform XML documents from the terminal

MCP server providing XSLT spec reference lookup and XSLT/XPath execution

MCP server providing XQuery spec reference lookup and XQuery/XPath execution

Static documentation generator powered by XSLT 4.0 — Markdown to XML to HTML

Built-in extensions for the Crucible documentation generator