AI-native data catalog with search, lineage and MCP
Marmot is an open-source data catalog designed 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.
Hey everyone, I'm Charlie - I built Marmot because data catalogs solve a simple problem: what data do we have and where does it live? But most catalogs will then ask you to run Elasticsearch, Kafka and a graph database just to find out. Data catalogs shouldn't need an entire platform team to run them. Now your AI agents need to answer these same questions - without valid context, they hallucinate. Marmot gives them a single source of truth to query.
Marmot is a single binary and a Postgres database, deployable in minutes. It currently has:
“AI-native data catalog with search, lineage and MCP”
Marmot launched on Product Hunt on April 7th, 2026 and earned 77 upvotes and 5 comments, placing #33 on the daily leaderboard. Marmot is an open-source data catalog designed 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.
On the analytics side, Marmot competes within Artificial Intelligence, GitHub, Data & Analytics and Data — topics that collectively have 515.4k followers on Product Hunt. The dashboard above tracks how Marmot performed against the three products that launched closest to it on the same day.
Who hunted Marmot?
Marmot was hunted by Charlie Haley. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Marmot including community comment highlights and product details, visit the product overview.
Charlie Haley
Hey everyone, I'm Charlie - I built Marmot because data catalogs solve a simple problem: what data do we have and where does it live? But most catalogs will then ask you to run Elasticsearch, Kafka and a graph database just to find out. Data catalogs shouldn't need an entire platform team to run them.
Now your AI agents need to answer these same questions - without valid context, they hallucinate. Marmot gives them a single source of truth to query.
Marmot is a single binary and a Postgres database, deployable in minutes. It currently has:
25+ plugins (and growing) including - dbt, Kafka, S3, Trino, Iceberg, PostgreSQL.
Full data lineage across your business
Built-in MCP server to give LLMs context around your data
100% free and open-source.
Try it: demo.marmotdata.io
Star us: github.com/marmotdata/marmot
Try it out and let me know what you think!