spiculedata/saiku
Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite. observed · 2026-08-28
Health v2 · maintenance only
98/100
- Activity 99
- Release rhythm 95
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 1.0
- age_days: 5446
- days_rel: 32
- days_push: 8
- n_releases_24m: 25
Adoption not part of the score
1316 stars · 655 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Saiku is an open-source semantic layer and OLAP analytics server built on Mondrian and Apache Calcite, exposing one cube to Excel (MDX/XMLA), browser dashboards, and AI agents via a typed REST API and MCP. It is deployed as a Java web application with a Docker image and a drag-and-drop web UI.
Use cases
- query olap cubes from excel via mdx and xmla
- build drag-and-drop bi dashboards in the browser
- let ai agents query a semantic layer without writing mdx
- run sql analytics over a lakehouse with trino and iceberg
- self-host an open-source business intelligence server
- expose a single semantic model to multiple bi tools
When to choose
- you need a self-hosted open-source semantic layer serving Excel, dashboards, and AI agents from one cube
- your team already uses Mondrian/MDX and wants a modern Calcite-based backend
- you want MCP support so LLM agents can query analytics safely
When to avoid
- you only need lightweight SQL dashboards without OLAP modeling
- you prefer a fully managed commercial BI suite
- your stack is not Java/JVM-friendly and you cannot run Docker
Facets
application · maturity active
analytics search-engine api-framework mcp data-visualization chat-interface analytics databases data-visualization large-language-models self-hosted jvm self-hosted browser cross-platform semantic-layer olap mdx xmla mondrian apache-calcite business-intelligence cubes excel dashboards ai-agents docker web-server
2 sources
- readme: https://github.com/spiculedata/saiku · fetched 2026-08-28 · 06c3c4a1ee48
- homepage: https://saiku.bi · fetched 2026-08-29 · 44136fa355b3
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| spiculedata/saiku | main | 98 |
For agents
markdown · JSON · MCP: product_card(name="spiculedata/saiku")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem