📊 Cube Core is open-source semantic layer for AI, BI and embedded analytics

MetricFlow allows you to define, build, and maintain metrics in code.

Semantica 🧠 — A framework for building semantic layers, context graphs, and decision intelligence systems with explainability and provenance.

An open-source Text2SQL tool that transforms natural language into SQL using graph-powered schema understanding. Ask your database questions in plain English, QueryWeaver handles the weaving.

Synmetrix – production-ready open source semantic layer on Cube

The open context engine for AI agents

Metrics Observability & Troubleshooting

Make sense of it all. Semantic data modeling and analytics with a sprinkle of AI. https://totalhack.github.io/zillion/

Open-source repository for Semantic Modeling Language (SML)

The GenAI-powered toolkit for automated data intelligence.

The universal metrics layer. Compatible with 15+ formats: Cube, MetricFlow, LookML, Omni, BSL, LDM, Cortex, Malloy, OSI, SML, TML, Hex, Rill, Superset

Databao agent is an open-source agent that enables you to chat with your data and receive answers in text, interactive charts, and tables.

Databao Context Engine is an open-source engine that automatically generates a governed semantic context from your databases, BI tools, documents, and spreadsheets. It runs locally in your environment and integrates with any LLM to deliver accurate, context-aware answers

An implementation of Measures in SQL as a DuckDB extension

Open-source agentic schema CLI. Optimised for claude code, gemini, codex and co-pilot. Skills included.

Testing Boring SL with DuckDB

API-first semantic engine and query planner for AI agents that compiles declarative YAML models into optimized, dialect-specific SQL across BigQuery, PostgreSQL, Snowflake, ClickHouse, Dremio, Databricks, and DuckDB.

Open-source agentic schema for reliable data outputs. Query data through MCP and via our SDK. Create apps, embed data or just simply explore through your preferred agent.

A Grafana data source plugin that brings semantic layer analytics via Cube. Define metrics once, use them consistently across all dashboards.

Transform JSON output from Senzing SDK for use with graph technologies, semantics, and downstream LLM integration