OuterSpace Apizr vs io.github.cap-js/mcp-server
OuterSpace Apizr is an MCP server published by Alien6-Studio. Marketplaces we read that list it: 2 (Official MCP Registry, PyPI (MCP servers)). io.github.cap-js/mcp-server is an MCP server published by cap-js. Marketplaces we read that list it: 3 (Official MCP Registry, Claude Code: claude-plugins-official, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-24. 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 |   OuterSpace Apizr |  io.github.cap-js/mcp-server |
|---|---|---|
| Official MCP Registry | Listed Version: 0.4.6 Downloads/month (PyPI): 1 661 Downloads/week (PyPI): 201 Forks (GitHub): 0 Stars (GitHub): 4 Not marked · First seen |
Listed Version: 0.0.8 Downloads/month (npm): 235 228 Downloads/week (npm): 61 842 Forks (GitHub): 19 Stars (GitHub): 117 Not marked · First seen |
| PyPI (MCP servers) | Listed Version: 0.4.6 Downloads/month (PyPI): 1 661 Downloads/week (PyPI): 201 Forks (GitHub): 0 Stars (GitHub): 4 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 0.0.8 Forks (GitHub): 19 Stars (GitHub): 117 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 0.0.5 Forks (GitHub): 19 Stars (GitHub): 117 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 | OuterSpace Apizr | io.github.cap-js/mcp-server |
|---|---|---|
| Marketplaces that list it (differs) | 2 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 4 (worse) | 117 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 19 (better) |
| Last release (differs) | 2026-10-20 (better) | 2026-10-16 (worse) |
| Where it runs (differs) | On your machine (outerspace-apizr-mcp) | On your machine (@cap-js/mcp-server) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | Not a bundle | 1 |
| Licence (differs) | GPL-3.0-or-later | Apache-2.0 |
| Repository (differs) | github.com/alien6-studio/outerspace-apizr | github.com/cap-js/mcp-server |
| Changes in the last 7 days (differs) | 5 | 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
OuterSpace Apizr
Python capability compiler: read-only analysis, experiment history/comparison and exposure planning.
io.github.cap-js/mcp-server
Model Context Protocol (MCP) server for AI-assisted development of CAP applications.
How to run each
OuterSpace Apizr As a local MCP server: PyPI package
claude mcp add --transport stdio outerspace-apizr -- uvx outerspace-apizr-mcp --project "<YOUR_PROJECT>" --operator-policy "<YOUR_OPERATOR_POLICY>" --plugins-dir "<YOUR_PLUGINS_DIR>"Requires: --project, --operator-policy, --plugins-dir
io.github.cap-js/mcp-server As a local MCP server: npm package
claude mcp add --transport stdio io-github-cap-js-mcp-server -- npx -y @cap-js/mcp-serverCommands 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
Neither one's marketplaces publish the settings it asks for.
What it can do: OuterSpace Apizr · What it can do: io.github.cap-js/mcp-server · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the Python Package Index (pypi.org). 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. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.