MotherDuck / DuckDB (official)

Last tested 2026-10-22

Score 70/100 · Last tested 2026-10-22 · Version tested 1.1.0 · Package mcp-server-motherduck · Repo motherduckdb/mcp-server-motherduck

Summary: MotherDuck / DuckDB (official) requires credentials or a backing service before it will list tools.

Test results

TestResultPointsEvidence
installpass20uv pip install mcp-server-motherduck (Python venv, Linux) succeeded in 0s.
handshakefail0Server did not complete the handshake without credentials or a backing service (ead-only access to a DuckDB file - Use --db-path md: with a MotherDuck token for cloud database access exited code 2).
maintenancepass25Repo pushed 14 days before test; 533 GitHub stars.
docspass15README over 3,000 chars; install instructions present; mcpServers config example present. Automated check of the package's own README (PyPI long_description (package README)).
licensepass10MIT (OSI-approved).

Local-model readiness

Not yet tested (no tools/list response without credentials).

Not tested

We did not test behavior with real credentials, security, or performance under load. These are planned; see methodology.

Tools listed

Not available (handshake did not complete without credentials).

Config used in our test

{
  "mcpServers": {
    "motherduck-duckdb-official": {
      "command": "uvx",
      "args": [
        "mcp-server-motherduck"
      ]
    }
  }
}

FAQ

Is MotherDuck / DuckDB (official) deprecated?

No. mcp-server-motherduck was not deprecated or archived when we last tested it on 2026-10-22.

What replaces MotherDuck / DuckDB (official)?

Nothing; MotherDuck / DuckDB (official) is not deprecated as of 2026-10-22.

Does MotherDuck / DuckDB (official) need an API key?

Unknown. It did not complete the handshake in our test without credentials or a backing service, and gave no clear credential message.

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Tested by TestedMCP: 70/100

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