StackGen vs io.github.kastelldev/kastell
StackGen is an MCP server published by stackgenhq. Marketplaces we read that list it: 1 (Docker MCP Catalog). io.github.kastelldev/kastell is an MCP server published by kastelldev. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-13. 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 |  StackGen |  io.github.kastelldev/kastell |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:e0bab64f662a Forks (GitHub): 1 Stars (GitHub): 1 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.14.0 Downloads/month (npm): 790 Downloads/week (npm): 108 Forks (GitHub): 2 Stars (GitHub): 60 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 | StackGen | io.github.kastelldev/kastell |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 (worse) | 60 (better) |
| Forks (GitHub) (differs) | 1 (worse) | 2 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (ghcr.io/stackgenhq/stackgen) | On your machine (kastell) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 4 | Not published |
| Environment variables it asks for (differs) | 2, secrets among them: 1 | 4, secrets among them: 4 |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/stackgenhq/homebrew-stackgen | github.com/kastelldev/kastell |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
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
StackGen
AI-powered DevOps assistant for managing cloud infrastructure and applications.
io.github.kastelldev/kastell
Server security audit (413 checks), hardening, and fleet management across 4 cloud providers.
How to run each
StackGen As a local MCP server: Docker image
claude mcp add --env "STACKGEN_TOKEN=<YOUR_STACKGEN_TOKEN>" --transport stdio stackgen -- docker run -i --rm -e STACKGEN_TOKEN ghcr.io/stackgenhq/stackgenRequires: STACKGEN_TOKEN (secret)
io.github.kastelldev/kastell As a local MCP server: npm package
claude mcp add --env "DIGITALOCEAN_TOKEN=<YOUR_DIGITALOCEAN_TOKEN>" --env "HETZNER_TOKEN=<YOUR_HETZNER_TOKEN>" --env "LINODE_TOKEN=<YOUR_LINODE_TOKEN>" --env "VULTR_TOKEN=<YOUR_VULTR_TOKEN>" --transport stdio kastell -- npx -y kastellRequires: DIGITALOCEAN_TOKEN (secret), HETZNER_TOKEN (secret), LINODE_TOKEN (secret), VULTR_TOKEN (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of io.github.kastelldev/kastell publish no list of tools, so we do not compare tools.
Settings each asks for
Only StackGen asks for
STACKGEN_TOKEN (secret)STACKGEN_URL
Only io.github.kastelldev/kastell asks for
DIGITALOCEAN_TOKEN (secret)HETZNER_TOKEN (secret)LINODE_TOKEN (secret)VULTR_TOKEN (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: StackGen · What it can do: io.github.kastelldev/kastell · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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.