rocketsmith vs io.github.ChiR24/unreal-engine-mcp
rocketsmith is a plugin bundle for AI coding tools published by ppak10. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). io.github.ChiR24/unreal-engine-mcp is an MCP server published by ChiR24. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-10-19. 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 |  rocketsmith |   io.github.ChiR24/unreal-engine-mcp |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.0.19 Forks (GitHub): 4 Stars (GitHub): 21 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.6.0-beta-f Downloads/month (npm): 3 146 Downloads/week (npm): 697 Forks (GitHub): 182 Stars (GitHub): 958 Not marked · First seen |
| Docker MCP Catalog | Not listed | Listed Version: sha256:bbc6bede740a Forks (GitHub): 182 Pulls (Docker Hub): 39 312 Stars (Docker Hub): 4 Stars (GitHub): 958 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 | rocketsmith | io.github.ChiR24/unreal-engine-mcp |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 21 (worse) | 958 (better) |
| Pulls (Docker Hub) (differs) | No figure on Docker Hub | 39 312 |
| Forks (GitHub) (differs) | 4 (worse) | 182 (better) |
| Last release (differs) | Not published | 2026-10-16 |
| Where it runs (differs) | Installs as a plugin bundle | Remote server or your machine |
| Transport (differs) | Not stated | stdio, Streamable HTTP |
| Tools it declares (differs) | Not published | 23 |
| Environment variables it asks for (differs) | 2, secrets among them: 0 | 11, secrets among them: 1 |
| Hooks it runs (differs) | 2 | Not published |
| Parts of the bundle (differs) | 16 | Not a bundle |
| Licence | MIT | MIT |
| Repository (differs) | github.com/ppak10/rocketsmith | github.com/chir24/unreal_mcp |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Answered with HTTP 404 (3 days ago) |
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
rocketsmith
Enables the use of OpenRocket and PrusaSlicer for CAD based agents to develop and simulate rockets.
io.github.ChiR24/unreal-engine-mcp
EngineWire: drive the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more.
How to run each
rocketsmith As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install rocketsmith@claude-communityio.github.ChiR24/unreal-engine-mcp As a local MCP server: npm package
claude mcp add --env "MCP_AUTOMATION_CAPABILITY_TOKEN=<YOUR_MCP_AUTOMATION_CAPABILITY_TOKEN>" --env "UE_PROJECT_PATH=<YOUR_UE_PROJECT_PATH>" --transport stdio unreal-engine-mcp -- npx -y unreal-engine-mcp-serverRequires: MCP_AUTOMATION_CAPABILITY_TOKEN (secret), UE_PROJECT_PATH
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only io.github.ChiR24/unreal-engine-mcp has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of rocketsmith publish no list of tools, so we do not compare tools.
Settings each asks for
Only rocketsmith asks for
PYTHONPATHROCKETSMITH_PROJECT_DIR
Only io.github.ChiR24/unreal-engine-mcp asks for
LOG_LEVELMCP_ADDITIONAL_PATH_PREFIXESMCP_AUTOMATION_ALLOW_NON_LOOPBACKMCP_AUTOMATION_CAPABILITY_TOKEN (secret)MCP_AUTOMATION_HOSTMCP_AUTOMATION_MAX_MESSAGES_PER_MINUTEMCP_AUTOMATION_PORTMCP_AUTOMATION_USE_TLSMCP_CONNECTION_TIMEOUT_MSMCP_REQUEST_TIMEOUT_MSUE_HOSTUE_PROJECT_PATH
Show the remaining 2
UE_RC_HTTP_PORTUE_RC_WS_PORT
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: rocketsmith · What it can do: io.github.ChiR24/unreal-engine-mcp · 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 Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.