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Marmot Data Catalog MCP Server

by marmotdata Your server? Claim it
not responding

Marmot Data Catalog is listed as active in the registry but did not answer our last check. Last commit 6 Nov 2026.

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

Uptime history 91 days of history · worst day 0%
91 days agonow
0.0%
Uptime 24h
0 of 91 checks
—
Tools
hidden behind auth
0 ms
Response time
average over 24h
634
Stars
last commit 6 Nov 2026

What the code does

We read the source, 2 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Checks whether it runs in a sandbox internal/telemetry/telemetry.go:199
    if _, err := os.Stat("/.dockerenv"); err == nil {
                        changes: { from, to: end, insert },
                        selection: EditorSelection.cursor(from + insert.length),
Builds a file path from a variable plugins/dbt/dbt/source.go:332
    path := filepath.Join(s.config.TargetPath, filename)
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

CI pipeline leaks secrets outward .github/workflows/release-chart.yaml:81
              \"sha\": \"$(curl -s -H 'Authorization: token ${{ secrets.CHARTS_REPO_TOKEN }}' https://api.github.com/repos/marmotdata/charts/git/refs/heads/main | jq -r .object.sha)\"

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

run in your terminal
claude mcp add marmot --transport http 'https://{marmot_host}/api/v1/mcp'
Settings → Connectors → Add custom connector, then paste this address
https://{marmot_host}/api/v1/mcp
~/.codex/config.toml
[mcp_servers.marmot]
url = "https://{marmot_host}/api/v1/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "marmot": {
      "url": "https://{marmot_host}/api/v1/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "marmot": {
      "type": "http",
      "url": "https://{marmot_host}/api/v1/mcp"
    }
  }
}

Endpoints

URLTransportStateLatencyChecked
https://{marmot_host}/api/v1/mcp streamable-http answering 0 ms 12 min ago

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Marmot Data Catalog — questions

Answers built from our own checks of this server.

Is Marmot Data Catalog working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 0 ms. The bar chart above shows every period we have measured.
The registry lists Marmot Data Catalog as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Marmot Data Catalog?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Marmot Data Catalog need an API key?
No. Marmot Data Catalog completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.
Is Marmot Data Catalog open source?
The code is open source: it is published under the MIT licence, written in Go, 634 stars on GitHub and 21 open issues. The licence covers the code in the repository, not the hosted service, which runs on its operator's own terms.