Marmot Data Catalog

Name: Marmot Data Catalog
Author: marmotdata

by marmotdataversion 1.0.0i★ 636iRuns in the cloud

Registry nameio.github.marmotdata/marmot

How to install

What it does

Open-source data catalog. Search assets, explore lineage, and find ownership.

Connects Runs in the cloud
Account or key Needs X-API-Key
Category Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Passed 3/3 checks · What you ask goes through the maker’s server ({marmot_host}) · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Sign up and create a Marmot Data Catalog key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open Claude’s Connectors page
CustomizeConnectors
Done
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameMarmot Data Catalog
Remote MCP server URL · Addresshttps://{marmot_host}/api/v1/mcp
Under Request headers, add this name and value
Header nameX-API-Key
Value<paste your key here>
Paste the key only into the app’s field, never into a chat or to anyone
Click Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Done
Turn it on in a chat
+ConnectorsMarmot Data Catalog
Done
Try it
Use Marmot Data Catalog and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Marmot Data Catalog or shows a Marmot Data Catalog tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Marmot Data Catalog yet

Marmot Data Catalog needs your own key to connect, but OpenAI’s help page only describes OAuth sign-in; there is no key option we could verify

What you can do instead

A · Use an app that can connect Marmot Data Catalog

Steps for Claude →You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it
Steps for Claude Code →You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first
Steps for Cursor →You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first
Steps for VS Code →You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first

B · Others in Search & AI memory that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Context7✓ ChatGPT
OpenSEO✓ ChatGPT
AIHOT✓ ChatGPT

Works with Claude Code, with some setup first

You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first

Sign up and create a Marmot Data Catalog key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done
3
Paste this command and press Enter
```
claude mcp add --transport http --scope user marmot 'https://{marmot_host}/api/v1/mcp' --header 'X-API-Key: your-value'
```
Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Done
Type /mcp in Claude Code
You should see Marmot Data Catalog listed as connected
Done
Try it
Use Marmot Data Catalog and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Marmot Data Catalog or shows a Marmot Data Catalog tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first

Sign up and create a Marmot Data Catalog key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done

Open Cursor’s MCP settings file

~/.cursor/mcp.json

Paste these settings, fill in the empty values and save

{
  "mcpServers": {
    "marmot": {
      "url": "https://{marmot_host}/api/v1/mcp",
      "headers": {
        "X-API-Key": "your-value"
      }
    }
  }
}

Done

Fill in your key
In the Marmot Data Catalog settings, X-API-Key is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Marmot Data Catalog and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Marmot Data Catalog or shows a Marmot Data Catalog tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Marmot Data Catalog key (create it on the maker’s site) · The address has {…} parts you must replace with your own first

Sign up and create a Marmot Data Catalog key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done

Open VS Code’s MCP settings file

MCP: Open User Configuration

Paste these settings, fill in the empty values and save

{
  "servers": {
    "marmot": {
      "type": "http",
      "url": "https://{marmot_host}/api/v1/mcp",
      "headers": {
        "X-API-Key": "your-value"
      }
    }
  }
}

Done

Fill in your key
In the Marmot Data Catalog settings, X-API-Key is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Marmot Data Catalog and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Marmot Data Catalog or shows a Marmot Data Catalog tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://{marmot_host}/api/v1/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Marmot Data Catalog💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user marmot 'https://{marmot_host}/api/v1/mcp' --header 'X-API-Key: your-value'

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "marmot": {
      "url": "https://{marmot_host}/api/v1/mcp",
      "headers": {
        "X-API-Key": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "marmot": {
      "type": "http",
      "url": "https://{marmot_host}/api/v1/mcp",
      "headers": {
        "X-API-Key": "your-value"
      }
    }
  }
}

Values you fill in

X-API-Key secret required HTTP header
Marmot API key (generate from Settings > API Keys)

Descriptions are as written by the maker.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 636
Downloads per weeki: Not on npm/PyPI
Licence i: MIT
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.0.0
Categoryi: Search & AI memory
Published to registryi: Mar 22, 2026
Code last changedi: Nov 13, 2026
Maker: marmotdata
Repo: marmotdata/marmot
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

The address needs your own values, so we cannot read the tool list for you.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 14, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account marmotdata, which owns the repo
✓ Pass
Still maintained
Code last changed yesterday
✓ Pass
Has a licence
Uses MIT
– Not applicable
Endpoint responds
The address needs your own account values, so we cannot check it for you
– Not applicable
Sign-in with OAuth
The address needs your own account values, so we cannot check it for you
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Search & AI memoryi

More stars than 99% of the other 6102 servers in this category
Published to the registry more recently than 6% of the other 6102 servers in this category
Basic checks equal to or better than 100% of the other 6102 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Marmot Data Catalog safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: X-API-Key

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed yesterday, and the latest version (1.0.0) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: Context7, Codebase Memory, OpenSEO

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

by upstashWidely used↓ 1.2M/wk★ 64.8KUpdated 2 days ago

Computer or cloud

Install

Codebase Memory

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

by DeusDataWidely used↓ 16.8K/wk★ 48.6KUpdated 28 days ago

Runs on your computer

Install

OpenSEO

Keyword research, site audits, rank tracking and AI visibility for your AI agent.

by every-appWidely used★ 27.6KUpdated today

Runs in the cloud✓ everyapp.com

How to connect

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

One governed way in to your data, for people and AI agents.

Marmot catalogs your tables, topics, dashboards and pipelines with 70+ plugins, records their lineage, owners and definitions, and lets people and agents query the data through it, with every query checked and audited.

Use it from the web UI, the CLI, the SDKs or its built-in MCP server. It runs as one Go binary backed by PostgreSQL.

Quick start · Documentation · Plugins · Marmot Cloud · Discord

What you can do with it

Marmot catalogs the tables, topics, dashboards and pipelines you already run, records what each one means and who owns it, and serves that context to everyone from one place:

Search every source in plain words, then narrow the results with the query language.
Trace lineage upstream and downstream, from plugins and OpenLineage runs, before you change something. See lineage.
Explain what data means with owners, descriptions, a glossary and data products that travel with every asset.
Give agents the same context through the MCP server, the CLI and SDKs for Go, Python and TypeScript.
Run SQL through Marmot against the sources you connect. Each query is checked against the caller's roles and recorded in the query audit, so an agent never needs a database password of its own.
Keep it current with 70+ plugins for systems such as PostgreSQL, BigQuery, Kafka, dbt and Airflow, or declare assets yourself with Terraform and the API.

Try it locally

You need Docker with Docker Compose, and port 8080 free. Save this as docker-compose.yaml. It's for trying Marmot out, so it stores credentials unencrypted:

services:

marmot: image: ghcr.io/marmotdata/marmot:latest ports:

"8080:8080" environment: MARMOT_DATABASE_HOST: postgres MARMOT_DATABASE_PORT: 5432 MARMOT_DATABASE_USER: marmot MARMOT_DATABASE_PASSWORD: marmot MARMOT_DATABASE_NAME: marmot MARMOT_DATABASE_SSLMODE: disable MARMOT_SERVER_ALLOW_UNENCRYPTED: true depends_on: postgres: condition: service_healthy

postgres: image: postgres:16-alpine environment: POSTGRES_USER: marmot POSTGRES_PASSWORD: marmot POSTGRES_DB: marmot volumes:

marmot_data:/var/lib/postgresql/data healthcheck: test: ["CMD-SHELL", "pg_isready -U marmot"] interval: 5s timeout: 5s retries: 5

volumes: marmot_data:

Start it:

docker compose up -d

Open http://localhost:8080 and sign in as admin with the password admin. Marmot asks you to choose a new password, then you can open Plugins and pick a system under Add a source to catalog it. The quick start walks through the first pipeline.

To skip running it yourself, Marmot Cloud launches a managed instance. The free plan needs no card.

Connect an agent

Create an API key under Account → API keys, then add Marmot to your client's MCP configuration. For Claude Code, that's .mcp.json in your project's root:

"mcpServers": { "marmot": { "type": "http", "url": "http://localhost:8080/api/v1/mcp", "headers": { "X-API-Key": " " } } } }

The agent can then search the catalog, trace lineage and look up owners and glossary terms, with the same permissions as the key it uses:

The MCP docs cover Claude Desktop, Cursor, Cline and LibreChat. Marmot for agents covers skills, LangChain and the Claude Agent SDK.

Work from your terminal

The marmot CLI searches the catalog, manages assets and runs the server. Install it with Homebrew:

brew install marmot

Or with the install script:

curl -fsSL get.marmotdata.io | sh

See the CLI reference for every command.

Run it for your team

The core is open source under the MIT licence and runs anywhere you can run a container or a binary. Self-host covers Docker Compose, Docker, Helm and the binary, with an encryption key for stored credentials. Marmot Cloud runs it for you and adds access control per resource, secret stores and keyless pipelines. The data model, query language, plugins and MCP server are the same in both.

Get help

Discord for questions and talking to the team and other people running Marmot.
GitHub issues for bugs and feature requests.
Report a vulnerability privately, not in an issue.

Contributing

Read the contributing guide before you open a pull request. Local development gets Marmot running from source, and build a plugin covers connecting a system that has no plugin yet.

Licence

Marmot is open source under the MIT licence.

Marmot Data Catalog

What it does

Install

Sign up and create a Marmot Data Catalog key

Open Claude’s Connectors page

Click “Add” → “Custom” → “Web” and fill in these 2 fields

Turn it on in a chat

Try it

What you can do instead

Sign up and create a Marmot Data Catalog key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Sign up and create a Marmot Data Catalog key

Open Cursor’s MCP settings file

Fill in your key

Open the AI chat in Cursor in Agent mode

Try it

Sign up and create a Marmot Data Catalog key

Open VS Code’s MCP settings file

Fill in your key

Open the AI chat in VS Code in Agent mode

Try it

Over the web

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Search & AI memoryi

Common questions

Others in the same category

Context7

Codebase Memory

OpenSEO

README from the maker

What you can do with it

Try it locally

Connect an agent

Work from your terminal

Run it for your team

Get help

Contributing

Licence