Plugin allows to view databases, supported by QtSql module.

Plugin based on Timo Bingmann's tb@idlebox.net QtSqlView application
Binaries can be downloaded from github releases.
IMPORTANT: plugin's version must match Qt Creator's version (difference in last digit is acceptable)
Change paths.pri:
set QTCREATOR_SOURCES = path to Qt Creator source dir (with qtcreator.pro)
set IDE_BUILD_TREE = path to compiled Qt Creator dir (with bin,lib,libexec,...)
Compile plugin.
QtcDbViewer plugin (Help → About Plugins...)Additional information can be obtained here (in russian)
$ claude mcp add qtc-dbviewer \
-- python -m otcore.mcp_server <graph>