looker vs MockHero
looker is a plugin bundle for AI coding tools published by gemini-cli-extensions. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces). MockHero is an MCP server published by dinosaur24. 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
| Marketplace |  looker |  MockHero |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 0.3.11 Forks (GitHub): 5 Stars (GitHub): 57 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Listed Version: 0.3.10 Forks (GitHub): 5 Stars (GitHub): 57 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.2.0 Downloads/month (npm): 188 Downloads/week (npm): 39 Forks (GitHub): 1 Stars (GitHub): 1 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
| Fact | looker | MockHero |
|---|---|---|
| Marketplaces that list it (differs) | 3 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 57 (better) | 1 (worse) |
| Forks (GitHub) (differs) | 5 (better) | 1 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (mockhero.dev/mcp/agent) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 7, secrets among them: 1 | 2, secrets among them: 1 |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/gemini-cli-extensions/looker | github.com/dinosaur24/mockhero |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Answered with HTTP 404 (13 h ago) |
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
looker
Connect to Looker and interact with your data using LookML.
MockHero
Generate realistic relational test data — 156 field types, 22 locales, JSON/CSV/SQL, free previews.
How to run each
looker As a Claude Code plugin
/plugin install looker@claude-plugins-officialMockHero As a remote MCP server
claude mcp add --transport http mockhero https://mockhero.dev/mcp/agentRequires: MOCKHERO_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only MockHero has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Only looker asks for
LOOKER_BASE_URLLOOKER_CLIENT_IDLOOKER_CLIENT_SECRET (secret)LOOKER_SHOW_HIDDEN_EXPLORESLOOKER_SHOW_HIDDEN_FIELDSLOOKER_SHOW_HIDDEN_MODELSLOOKER_VERIFY_SSL
Only MockHero asks for
MOCKHERO_API_BASEMOCKHERO_API_KEY (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: looker · What it can do: MockHero · 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 the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. 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.