Zen vs io.github.SQUORA-NL/crayon-c4-mcp
Zen is an MCP server published by BeehiveInnovations. Marketplaces we read that list it: 1 (Docker MCP Catalog). io.github.SQUORA-NL/crayon-c4-mcp is an MCP server published by SQUORA-NL. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). As of our marketplace pass on 2026-10-30. 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 |  Zen | |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:02cbe1d325db Forks (GitHub): 1 036 Pulls (Docker Hub): 35 283 Stars (Docker Hub): 0 Stars (GitHub): 11 812 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.50.2 Downloads/month (npm): 1 405 Downloads/week (npm): 587 Not marked · First seen |
| npm registry (MCP servers) | Not listed | Listed Version: 1.50.2 Downloads/month (npm): 1 405 Downloads/week (npm): 587 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 | Zen | io.github.SQUORA-NL/crayon-c4-mcp |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 11 812 | No figure on GitHub |
| Pulls (Docker Hub) (differs) | 35 283 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 1 036 | No figure on GitHub |
| Last release (differs) | Not published | 2026-10-22 |
| Where it runs (differs) | On your machine (mcp/zen) | On your machine (@crayon-c4/mcp) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 18 | Not published |
| Environment variables it asks for (differs) | 4, secrets among them: 4 | 1, secrets among them: 1 |
| Licence (differs) | NOASSERTION | SEE LICENSE IN LICENSE |
| Repository (differs) | github.com/beehiveinnovations/zen-mcp-server | github.com/squora-nl/crayon.c4 |
| 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
Zen
Bridges multiple AI models and CLIs, enabling orchestrated workflows across Claude Code, Gemini CLI, Codex CLI, and other AI development tools.
io.github.SQUORA-NL/crayon-c4-mcp
Author, validate and maintain a CRAYON-C4 architecture model — never write an invalid file.
How to run each
Zen As a local MCP server: Docker image
claude mcp add --env "GEMINI_API_KEY=<YOUR_GEMINI_API_KEY>" --env "OPENAI_API_KEY=<YOUR_OPENAI_API_KEY>" --env "OPENROUTER_API_KEY=<YOUR_OPENROUTER_API_KEY>" --env "XAI_API_KEY=<YOUR_XAI_API_KEY>" --transport stdio zen -- docker run -i --rm -e GEMINI_API_KEY -e OPENAI_API_KEY -e OPENROUTER_API_KEY -e XAI_API_KEY mcp/zenRequires: GEMINI_API_KEY (secret), OPENAI_API_KEY (secret), OPENROUTER_API_KEY (secret), XAI_API_KEY (secret)
io.github.SQUORA-NL/crayon-c4-mcp As a local MCP server: npm package
claude mcp add --env "CRAYON_C4_LICENSE_KEY=<YOUR_CRAYON_C4_LICENSE_KEY>" --transport stdio crayon-c4-mcp -- npx -y @crayon-c4/mcpRequires: CRAYON_C4_LICENSE_KEY (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.SQUORA-NL/crayon-c4-mcp publish no list of tools, so we do not compare tools.
Settings each asks for
Only Zen asks for
GEMINI_API_KEY (secret)OPENAI_API_KEY (secret)OPENROUTER_API_KEY (secret)XAI_API_KEY (secret)
Only io.github.SQUORA-NL/crayon-c4-mcp asks for
CRAYON_C4_LICENSE_KEY (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: Zen · What it can do: io.github.SQUORA-NL/crayon-c4-mcp · 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. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.