Happy slice of mcp pizzaMCP.pizza

marmot

MCP.Pizza Chef: marmotdata

Marmot is a catalogue of your organisation's data, and this exposes it to your assistant so it answers from real records rather than guesswork. Ask which table holds a field, trace where a report's numbers actually come from, check who owns a dataset before changing it, or see what would break downstream. It ships as a single program you run yourself with its own web interface, rather than a stack of services to assemble. Free and open source, with a live demo you can try first.

Coding
Data

Use This MCP server To

Find which table holds the numbers I need Trace where a report's data actually comes from See who owns a dataset before I change it Check what breaks if I rename a column Ask what a confusing field name actually means

README

Marmot

Discover any data asset in seconds. Then let your AI do the same.

The open-source context layer for your AI. Catalog your tables, topics, queues and APIs then expose real metadata to your AI agents.

Documentation • Live Demo • Deploy • Community

What is Marmot?

Marmot is an open-source data catalog for teams who want powerful data discovery without enterprise complexity. Catalog every data asset, enrich it with the context that matters and make it accessible to your team and your AI tools.

Unlike traditional catalogs that require extensive infrastructure and configuration, Marmot ships as a single binary with an intuitive UI, making it easy to deploy and start cataloging in minutes.

Features

  • Search everything: Find any data asset in seconds with full-text search plus structured queries, boolean logic and metadata filters.
  • Interactive lineage: Trace data flows from source to destination and analyse impact before making changes.
  • Metadata-first: Store rich metadata for any asset type, from tables and topics to APIs and dashboards.
  • Team collaboration: Assign ownership, document business context and maintain shared glossaries.
  • AI-ready: Expose certified context through MCP, the API and the UI.
Marmot context layer showing plugins, integrations and AI agents

Deploy

New to Marmot? Follow the Deploy documentation for a guided setup, or try the live demo.

Development

See Local Development for how to get started developing locally.

marmot FAQ

Can I use this to find a table I only half remember?
Yes — search covers names, descriptions and the notes your team added, with filters on top.
Do I need a big infrastructure setup?
No. It ships as a single binary you run, which is the main thing separating it from enterprise catalogues.
Is there a way to try it before installing?
Yes, there is a live demo you can click around at demo.marmotdata.io.
Does it cost anything?
No. It is open source under the MIT licence and self-hosting is free.
What kinds of things can it catalogue?
Database tables, message topics and queues, internal services, and dashboards.
Do I need an API key?
Not for the catalogue itself. Connecting it to your own data sources needs whatever access those sources already require.