Agentic Data Stack (LibreChat + ClickHouse + Muster)

The Agentic Data Stack is an open-source, self-hosted stack maintained by ClickHouse that connects a chat UI (LibreChat) to your analytical database (ClickHouse) via MCP, with full LLM observability powered by Muster (langfuse).

Components

• LibreChat — chat UI supporting multiple LLM providers.
• ClickHouse — analytical database.
• ClickHouse MCP — exposes the database to AI agents.
• Muster — captures traces, evaluations, and scores.

Two paths

Quick add to an existing LibreChat

Add three env vars to your existing LibreChat deployment:

LANGFUSE_PUBLIC_KEY=pk-lf-...
LANGFUSE_SECRET_KEY=sk-lf-...
LANGFUSE_BASE_URL=https://app.getmuster.io

Restart:

docker compose down && docker compose up -d

Full deployment

git clone https://github.com/ClickHouse/agentic-data-stack.git
cd agentic-data-stack
./scripts/prepare-demo.sh
docker compose up -d

After the script finishes, LibreChat runs at localhost:3080 and Muster runs at localhost:3000.

See also

• Upstream Langfuse Agentic Data Stack docs
• LibreChat