Strata launches full-stack semantic layer with LLM guardrails and free 25-user tier

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Ajo, a former Netflix engineer with four years of experience in self-service analytics, has launched Strata, a full-stack semantic layer platform designed for non-technical business users. The tool enforces strict naming conventions to prevent metric ambiguity and supports automatic data blending across fact domains. Strata includes built-in dashboards, subscriptions, Google Sheets exports, and supports both agent-based conversations and MCP integrations. It features partition- and aggregate-aware query routing, allowing faster engines like ClickHouse or Druid to handle recent data while cheaper stores retain full history. Currently in early beta, Strata is not open source but offers a free tier for up to 25 users and can be run locally via Docker.

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