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PopNx MCPMCP servers for people who use AI · explained in plain words

Schemacrawler AI

by schemacrawlerversion v18.0.1-1i★ –iRuns on your computer
Registry nameio.github.schemacrawler/schemacrawler-ai

Install

Overview

Description from the maker (original English)

Enables natural language schema queries — explore tables, keys, procedures, and get SQL help fast

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Databases & datasets
  • You need to fill in: SCHCRWLR_DATABASE_USER, SCHCRWLR_DATABASE_PASSWORD

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: SCHCRWLR_MCP_SERVER_TRANSPORT, SCHCRWLR_DATABASE_USER, SCHCRWLR_DATABASE_PASSWORD, SCHCRWLR_JDBC_URL, SCHCRWLR_SERVER, SCHCRWLR_HOST, SCHCRWLR_PORT, SCHCRWLR_DATABASE, SCHCRWLR_DATABASE_ALIAS, SCHCRWLR_DATABASE_DESCRIPTION, SCHCRWLR_INFO_LEVEL, SCHCRWLR_LOG_LEVEL, SCHCRWLR_EXCLUDE_TOOLS

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "schemacrawler-ai": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "SCHCRWLR_MCP_SERVER_TRANSPORT",
        "-e",
        "SCHCRWLR_DATABASE_USER",
        "-e",
        "SCHCRWLR_DATABASE_PASSWORD",
        "-e",
        "SCHCRWLR_JDBC_URL",
        "-e",
        "SCHCRWLR_SERVER",
        "-e",
        "SCHCRWLR_HOST",
        "-e",
        "SCHCRWLR_PORT",
        "-e",
        "SCHCRWLR_DATABASE",
        "-e",
        "SCHCRWLR_DATABASE_ALIAS",
        "-e",
        "SCHCRWLR_DATABASE_DESCRIPTION",
        "-e",
        "SCHCRWLR_INFO_LEVEL",
        "-e",
        "SCHCRWLR_LOG_LEVEL",
        "-e",
        "SCHCRWLR_EXCLUDE_TOOLS",
        "schemacrawler/schemacrawler-ai:18.0.1-1"
      ],
      "env": {
        "SCHCRWLR_MCP_SERVER_TRANSPORT": "your-value",
        "SCHCRWLR_DATABASE_USER": "your-value",
        "SCHCRWLR_DATABASE_PASSWORD": "your-value",
        "SCHCRWLR_JDBC_URL": "your-value",
        "SCHCRWLR_SERVER": "your-value",
        "SCHCRWLR_HOST": "your-value",
        "SCHCRWLR_PORT": "your-value",
        "SCHCRWLR_DATABASE": "your-value",
        "SCHCRWLR_DATABASE_ALIAS": "your-value",
        "SCHCRWLR_DATABASE_DESCRIPTION": "your-value",
        "SCHCRWLR_INFO_LEVEL": "your-value",
        "SCHCRWLR_LOG_LEVEL": "your-value",
        "SCHCRWLR_EXCLUDE_TOOLS": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add schemacrawler-ai --env SCHCRWLR_MCP_SERVER_TRANSPORT=your-value --env SCHCRWLR_DATABASE_USER=your-value --env SCHCRWLR_DATABASE_PASSWORD=your-value --env SCHCRWLR_JDBC_URL=your-value --env SCHCRWLR_SERVER=your-value --env SCHCRWLR_HOST=your-value --env SCHCRWLR_PORT=your-value --env SCHCRWLR_DATABASE=your-value --env SCHCRWLR_DATABASE_ALIAS=your-value --env SCHCRWLR_DATABASE_DESCRIPTION=your-value --env SCHCRWLR_INFO_LEVEL=your-value --env SCHCRWLR_LOG_LEVEL=your-value --env SCHCRWLR_EXCLUDE_TOOLS=your-value -- docker run -i --rm -e SCHCRWLR_MCP_SERVER_TRANSPORT -e SCHCRWLR_DATABASE_USER -e SCHCRWLR_DATABASE_PASSWORD -e SCHCRWLR_JDBC_URL -e SCHCRWLR_SERVER -e SCHCRWLR_HOST -e SCHCRWLR_PORT -e SCHCRWLR_DATABASE -e SCHCRWLR_DATABASE_ALIAS -e SCHCRWLR_DATABASE_DESCRIPTION -e SCHCRWLR_INFO_LEVEL -e SCHCRWLR_LOG_LEVEL -e SCHCRWLR_EXCLUDE_TOOLS schemacrawler/schemacrawler-ai:18.0.1-1

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "schemacrawler-ai": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "SCHCRWLR_MCP_SERVER_TRANSPORT",
        "-e",
        "SCHCRWLR_DATABASE_USER",
        "-e",
        "SCHCRWLR_DATABASE_PASSWORD",
        "-e",
        "SCHCRWLR_JDBC_URL",
        "-e",
        "SCHCRWLR_SERVER",
        "-e",
        "SCHCRWLR_HOST",
        "-e",
        "SCHCRWLR_PORT",
        "-e",
        "SCHCRWLR_DATABASE",
        "-e",
        "SCHCRWLR_DATABASE_ALIAS",
        "-e",
        "SCHCRWLR_DATABASE_DESCRIPTION",
        "-e",
        "SCHCRWLR_INFO_LEVEL",
        "-e",
        "SCHCRWLR_LOG_LEVEL",
        "-e",
        "SCHCRWLR_EXCLUDE_TOOLS",
        "schemacrawler/schemacrawler-ai:18.0.1-1"
      ],
      "env": {
        "SCHCRWLR_MCP_SERVER_TRANSPORT": "your-value",
        "SCHCRWLR_DATABASE_USER": "your-value",
        "SCHCRWLR_DATABASE_PASSWORD": "your-value",
        "SCHCRWLR_JDBC_URL": "your-value",
        "SCHCRWLR_SERVER": "your-value",
        "SCHCRWLR_HOST": "your-value",
        "SCHCRWLR_PORT": "your-value",
        "SCHCRWLR_DATABASE": "your-value",
        "SCHCRWLR_DATABASE_ALIAS": "your-value",
        "SCHCRWLR_DATABASE_DESCRIPTION": "your-value",
        "SCHCRWLR_INFO_LEVEL": "your-value",
        "SCHCRWLR_LOG_LEVEL": "your-value",
        "SCHCRWLR_EXCLUDE_TOOLS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "schemacrawler-ai": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "SCHCRWLR_MCP_SERVER_TRANSPORT",
        "-e",
        "SCHCRWLR_DATABASE_USER",
        "-e",
        "SCHCRWLR_DATABASE_PASSWORD",
        "-e",
        "SCHCRWLR_JDBC_URL",
        "-e",
        "SCHCRWLR_SERVER",
        "-e",
        "SCHCRWLR_HOST",
        "-e",
        "SCHCRWLR_PORT",
        "-e",
        "SCHCRWLR_DATABASE",
        "-e",
        "SCHCRWLR_DATABASE_ALIAS",
        "-e",
        "SCHCRWLR_DATABASE_DESCRIPTION",
        "-e",
        "SCHCRWLR_INFO_LEVEL",
        "-e",
        "SCHCRWLR_LOG_LEVEL",
        "-e",
        "SCHCRWLR_EXCLUDE_TOOLS",
        "schemacrawler/schemacrawler-ai:18.0.1-1"
      ],
      "env": {
        "SCHCRWLR_MCP_SERVER_TRANSPORT": "your-value",
        "SCHCRWLR_DATABASE_USER": "your-value",
        "SCHCRWLR_DATABASE_PASSWORD": "your-value",
        "SCHCRWLR_JDBC_URL": "your-value",
        "SCHCRWLR_SERVER": "your-value",
        "SCHCRWLR_HOST": "your-value",
        "SCHCRWLR_PORT": "your-value",
        "SCHCRWLR_DATABASE": "your-value",
        "SCHCRWLR_DATABASE_ALIAS": "your-value",
        "SCHCRWLR_DATABASE_DESCRIPTION": "your-value",
        "SCHCRWLR_INFO_LEVEL": "your-value",
        "SCHCRWLR_LOG_LEVEL": "your-value",
        "SCHCRWLR_EXCLUDE_TOOLS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • SCHCRWLR_MCP_SERVER_TRANSPORT env
    MCP Server transport type - valid values are 'http' or 'stdio', defaulting to 'stdio'.
  • SCHCRWLR_DATABASE_USER secret env
    Database user name. Can be optional depending on the database connection type.
  • SCHCRWLR_DATABASE_PASSWORD secret env
    Database user password. Can be optional depending on the database connection type.
  • SCHCRWLR_JDBC_URL env
    JDBC URL for database connection. If this is provided, the server, host, port and database are not used.
  • SCHCRWLR_SERVER env
    SchemaCrawler database plugin, for example, 'sqlserver' or 'sqlite'. Used only if the JDBC URL is not provided.
  • SCHCRWLR_HOST env
    Database host. Defaults to localhost. Used only if the JDBC URL is not provided.
  • SCHCRWLR_PORT env
    Database port. Defaults to the default port for the server type. Used only if the JDBC URL is not provided.
  • SCHCRWLR_DATABASE env
    Database to connect to (optional). Used only if the JDBC URL is not provided.
  • SCHCRWLR_DATABASE_ALIAS env
    Optional stable alias used to identify this database server in MCP instructions and tool results.
  • SCHCRWLR_DATABASE_DESCRIPTION env
    Optional description of this database server, included in MCP instructions and the about_database response.
  • SCHCRWLR_INFO_LEVEL env
    How much database metadata to retrieve. Values are 'minimum', 'standard', 'detailed' or 'maximum'.
  • SCHCRWLR_LOG_LEVEL env
    Logging verbosity level. Values are 'SEVERE', 'WARNING', 'INFO', 'CONFIG', or 'FINE'.
  • SCHCRWLR_EXCLUDE_TOOLS env
    MCP Server tools to exclude, as a comma-separated list.

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account schemacrawler, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Databases & datasetsi

  • More stars than 0% of the other 953 servers in this category
  • Published to the registry more recently than 84% of the other 953 servers in this category
  • Basic checks equal to or better than 100% of the other 953 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 Schemacrawler AI safe?

It passed 1 of 1 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: SCHCRWLR_DATABASE_USER, SCHCRWLR_DATABASE_PASSWORD

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (v18.0.1-1) reached the registry 7 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Docker on your computer.

What can I use instead?

In the same category: Supabase, MongoDB MCP Server, Elasticsearch MCP Server

Alternatives

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

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README from the maker

No README found in the repo

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