# Marrow

> The product context layer for coding agents. Open source, Apache 2.0, one
> Postgres. Marrow turns meetings, standups and notes into decided vs open
> product truth with provenance, then gives coding agents task-scoped context
> over MCP and CLI.

The room decides, the code reflects, Marrow watches the gap. Every fact
carries a status (open, decided, contested, superseded), a confidence, and a
link to the exact evidence span it came from. Models propose; only a human
answer promotes a fact to decided. Agents get the slice for their task, never
the whole brain.

## Try it

- `npx @marrowhq/cli demo` runs the hero slice end to end with no API key
  (needs local Postgres).
- `claude mcp add marrow -- npx -y @marrowhq/mcp-server` points Claude Code at
  the brain over MCP. Works with any MCP host: Claude Code, Cursor, Codex.
- Live demo: https://marrow-demo.vercel.app

## Links

- Site: https://marrowhq.com
- Source: https://github.com/ElxMaj/marrow
- npm: https://www.npmjs.com/package/@marrowhq/cli
- Support: support@marrowhq.com