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datahub-skills vs io.github.codeislaw101/katzilla

datahub-skills is a plugin bundle for AI coding tools published by datahub-project. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Community GitHub marketplaces, Claude Code: claude-plugins-community). io.github.codeislaw101/katzilla is an MCP server published by codeislaw101. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.

Where each is published

Where each is published
Marketplacedatahub-skillsio.github.codeislaw101/katzilla
Claude Code: claude-plugins-official Listed
Version: 1.4.1
Forks (GitHub): 100
Stars (GitHub): 43
Not marked · First seen
Not listed
Claude Code: claude-plugins-community Listed
Version: 1.4.1
Forks (GitHub): 100
Stars (GitHub): 43
Not marked · First seen
Not listed
Official MCP Registry Not listed Listed
Version: 0.1.1
Downloads/month (npm): 116
Downloads/week (npm): 22
Not marked · First seen

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

The facts side by side

datahub-skills vs io.github.codeislaw101/katzilla
Factdatahub-skillsio.github.codeislaw101/katzilla
Marketplaces that list it (differs)3 (better)1 (worse)
Stars (GitHub) (differs)43No figure on GitHub
Forks (GitHub) (differs)100No figure on GitHub
Last releaseNot publishedNot published
Where it runs (differs)Installs as a plugin bundleOn your machine (@katzilla/mcp)
Transport (differs)Not statedstdio
Tools it declaresNot publishedNot published
Environment variables it asks for (differs)Not published1, secrets among them: 1
Parts of the bundle (differs)25Not a bundle
LicenceNot statedNot stated
Repository (differs)github.com/datahub-project/datahub-skillsgithub.com/codeislaw101/katzilla
Changes in the last 7 days00
First seen2026-10-112026-10-11

Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.

What each says it does

datahub-skills

In its own words, on Claude Code: claude-plugins-official:

DataHub development and interaction toolkit with connector planning, PR review, catalog search, metadata enrichment, lineage tracing, data quality management, and connection setup skills

io.github.codeislaw101/katzilla

In its own words, on Official MCP Registry:

300+ free public & government data sources behind one API key, for AI agents.

How to run each

datahub-skills As a Claude Code plugin

Claude Code
/plugin install datahub-skills@claude-plugins-official

io.github.codeislaw101/katzilla As a local MCP server: npm package

Claude Code
claude mcp add --env "KATZILLA_API_KEY=<YOUR_KATZILLA_API_KEY>" --transport stdio katzilla -- npx -y @katzilla/mcp

Requires: KATZILLA_API_KEY (secret)

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Tools each declares

Neither one's marketplaces publish a list of tools, so there is nothing to compare.

Settings each asks for

The marketplaces of datahub-skills publish no settings it asks for, so we do not compare settings.

What it can do: datahub-skills · What it can do: io.github.codeislaw101/katzilla · Compare two other plugins

Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built