Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite.
Saiku is an open-source semantic layer that represents data as analytical cubes for browser exploration, SQL queries, dashboards, and AI-agent access. It is for analysts and applications that need to query structured business data through Mondrian, Apache Calcite, REST, or MCP. The catalogue instruction helps agents work with Saiku.
Latest release v4.7.1 — Saiku 4.7.1 · 2 Aug 2026
These files are spiculedata/saiku's own configuration. They tell Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.
CLAUDE.md A 6,024 tok