cmux-mcp vs io.github.cap-js/mcp-server
cmux-mcp is a plugin bundle for AI coding tools published by daegweon. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). 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 2026-10-16. 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 |  cmux-mcp |  io.github.cap-js/mcp-server |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.2.7 Forks (GitHub): 1 Stars (GitHub): 5 Not marked · First seen |
Listed Version: 0.0.5 Forks (GitHub): 19 Stars (GitHub): 114 Not marked · First seen |
| Official MCP Registry | Not listed | Listed Version: 0.0.8 Downloads/month (npm): 235 228 Downloads/week (npm): 61 842 Forks (GitHub): 19 Stars (GitHub): 114 Not marked · First seen |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 0.0.6 Forks (GitHub): 19 Stars (GitHub): 114 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 | cmux-mcp | io.github.cap-js/mcp-server |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 5 (worse) | 114 (better) |
| Forks (GitHub) (differs) | 1 (worse) | 19 (better) |
| Last release (differs) | Not published | 2026-10-14 |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (@cap-js/mcp-server) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | Not published | 1 |
| Licence (differs) | MIT | Apache-2.0 |
| Repository (differs) | github.com/daegweon/cmux-mcp | github.com/cap-js/mcp-server |
| Changes in the last 7 days (differs) | 0 | 1 |
| 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
cmux-mcp
MCP server that gives AI agents full control of your cmux terminal — run commands, read output, and send control characters. Works in the background via Unix socket with no focus stealing. Smart command completion detection via CPU monitoring.
io.github.cap-js/mcp-server
Model Context Protocol (MCP) server for AI-assisted development of CAP applications.
How to run each
cmux-mcp As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install cmux-mcp@claude-communityio.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: cmux-mcp · What it can do: io.github.cap-js/mcp-server · 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 the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/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.