mern-ninja vs OneTool MCP
mern-ninja is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑18.
mern-ninja is a plugin bundle for AI coding tools published by 9tykeshav. No marketplace we read lists it any more. OneTool MCP is an MCP server published by beycom. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-23. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  OneTool MCP | |
|---|---|---|
| Community marketplace 9tykeshav/mern-ninja-marketplace | Removed on 2026-10-18 Version: 1.1.0 Forks (GitHub): 0 Stars (GitHub): 8 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 2.2.2 Forks (GitHub): 7 Stars (GitHub): 24 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 | mern-ninjano longer listed · | OneTool MCP |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 8 | 24 |
| Forks (GitHub) (differs) | 0 | 7 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Not stated |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 4 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/9tykeshav/mern-ninja-cc | github.com/beycom/onetool-mcp |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-15 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of mern-ninja
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Use this agent when designing APIs, building server-side logic, implementing databases, or architecting scalable backend systems. This agent specializes in creating robust…
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35 MCP tools give AI agents live Rails schema, routes, models, and conventions.
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AI skill for Python backend development - FastAPI, SQLAlchemy, Redis, security patterns
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Comprehensive backend development toolkit combining API design, database architecture, security, and scalability. Includes backend lead agent for holistic backend decisions.
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backend-skills
Collection of backend development skills including Kysely SQL query conversion
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Enhances Claude for developing full-stack web apps with Wasp (React, Node.js, Prisma)
What each says it does
mern-ninja
MERN stack mastery tools - code reviewer and test generator for MongoDB, Express, React, and Node.js
OneTool MCP
One MCP for devs incl Brave,Google,Tavily,Context7,AWS,Excalidraw,DB,GitHub,DevTools,Playwright
How to run each
mern-ninja
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
OneTool MCP
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands 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: mern-ninja · What it can do: OneTool MCP · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. 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.