altertable vs datadiffer
altertable is a plugin bundle for AI coding tools published by altertable-ai. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-community, Community GitHub marketplaces). datadiffer is an MCP server published by gauthierpiarrette. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-18. 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 |  altertable |  datadiffer |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.5.0 Forks (GitHub): 0 Stars (GitHub): 7 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.0 Downloads/month (PyPI): 72 Downloads/week (PyPI): 16 Forks (GitHub): 0 Stars (GitHub): 0 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 | altertable | datadiffer |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 7 (better) | 0 (worse) |
| Forks (GitHub) | 0 | 0 |
| Last release (differs) | 2026-10-15 | Not published |
| Where it runs (differs) | Remote server (mcp.altertable.ai/mcp) | On your machine (datadiffer) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 0 |
| Parts of the bundle (differs) | 20 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/altertable-ai/skills | github.com/gauthierpiarrette/datadiffer |
| Changes in the last 7 days (differs) | 4 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 3 days ago, requires a key | no remote endpoint we check |
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
altertable
Altertable gives Claude governed access to your Altertable workspace so it can explore data, query the lakehouse, analyze product and business metrics, and help turn raw data into insights. The plugin bundles Altertable-specific Agent Skills with the Altertable MCP, allowing Claude to inspect schemas, write and run SQL, analyze funnels, build segments, interpret charts, forecast time series, configure monitoring agents, manage discoveries, and use memory for richer follow-up analysis. It is designed for teams using Altertable as an AI-native data platform where humans and agents work from the same governed data context.
datadiffer
Read-only table diffs with segment attribution: which slice of your data changed.
How to run each
altertable As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install altertable@claude-communitydatadiffer As a local MCP server: PyPI package
claude mcp add --transport stdio datadiffer -- uvx datadifferCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only altertable 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
The marketplaces of altertable publish no settings it asks for, so we do not compare settings.
What it can do: altertable · What it can do: datadiffer · Compare two other plugins
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.