How do I install Scherlok?

Scherlok is a local plugin. Install it using PyPI package: scherlok and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Scherlok safe to use?

Scherlok was flagged by MCP Marketplace's security scan, scoring 4.2/10 (high risk). It has 5 high or critical findings to review. Review the security report on this page carefully before installing it.

What credentials does Scherlok need?

Scherlok requires the following credentials or environment variables: SCHERLOK_CONNECTION. You can find setup instructions on the server detail page.

What AI apps work with Scherlok?

Scherlok uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Scherlok MCP Server

by Rbmuller

Developer ToolsUse Caution4.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Zero-config data-quality monitoring: profile a warehouse, detect anomalies, gate CI.

About

Zero-config data-quality monitoring: profile a warehouse, detect anomalies, gate CI.

Security Report

4.2

Use Caution4.2High Risk

Scherlok is a well-structured data quality monitoring tool with generally sound security practices. However, there are notable concerns around credential handling in MCP server initialization, insufficient input validation on database connection strings, and a potential information disclosure risk via environment variable exposure in error messages. The codebase demonstrates good separation of concerns and proper use of remote storage, but error handling could be more careful about what gets logged or displayed to users. Supply chain analysis found 12 known vulnerabilities in dependencies (0 critical, 5 high severity). Package verification found 1 issue.

4 files analyzed · 21 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

network_https

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

env_vars

Check that this permission is expected for this type of plugin.

database

Check that this permission is expected for this type of plugin.

Shell Command Execution

Runs commands on your machine. Be cautious — only use if you trust this plugin.

What You'll Need

Set these up before or after installing:

Warehouse connection string (postgresql://, bigquery://, snowflake://, mysql://, duckdb:///path). Resolved server-side; never passed by the model.Required

Environment variable: SCHERLOK_CONNECTION

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-rbmuller-scherlok": {
      "env": {
        "SCHERLOK_CONNECTION": "your-scherlok-connection-here"
      },
      "args": [
        "scherlok"
      ],
      "command": "uvx"
    }
  }
}

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4.8

Local

mcp-creator-python

Free

by mcp-marketplace · Developer Tools

Create, build, and publish Python MCP servers to PyPI — conversationally.

Scherlok MCP Server

About

Security Report

Findings (21)Action required

Permissions Required

What You'll Need

How to Install

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