Comparison

async-fixer vs SonarQube MCP Server

async-fixer is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑18.

async-fixer is a plugin bundle for AI coding tools published by barnburner121. No marketplace we read lists it any more. SonarQube MCP Server is an MCP server published by SonarSource. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-11-13. 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

Where each is published
Marketplace	async-fixer	SonarQube MCP Server
Community marketplace barnburner121/claude-plugin-marketplace	Removed on 2026-10-18 Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 3 Not marked · First seen 2026-10-14	Not listed
Official MCP Registry	Not listed	Listed Version: 1.32.0 Forks (GitHub): 103 Stars (GitHub): 686 Not marked · First seen 2026-10-11
Docker MCP Catalog	Not listed	Listed Version: sha256:925c88bc7cab Forks (GitHub): 103 Pulls (Docker Hub): 1 718 981 Stars (Docker Hub): 23 Stars (GitHub): 686 Not marked · First seen 2026-10-11

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

async-fixer vs SonarQube MCP Server
Fact	async-fixerno longer listed · 2026-10-18	SonarQube MCP Server
Marketplaces that list it (differs)	0	2
Stars (GitHub) (differs)	3	686
Pulls (Docker Hub) (differs)	No figure on Docker Hub	1 718 981
Forks (GitHub) (differs)	0	103
Last release (differs)	Not published	2026-11-10
Where it runs (differs)	On your machine (@barnburner121/plugin-hub-mcp)	On your machine (docker.io/sonarsource/sonarqube-mcp)
Transport (differs)	Not stated	stdio
Tools it declares (differs)	Not published	25
Environment variables it asks for (differs)	Not published	3, secrets among them: 3
Parts of the bundle (differs)	2	Not a bundle
Licence (differs)	MIT	NOASSERTION
Repository (differs)	github.com/barnburner121/claude-plugin-marketplace	github.com/sonarsource/sonarqube-mcp-server
Changes in the last 7 days (differs)	0	1
First seen (differs)	2026-10-14	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 async-fixer

Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.

AI Guard

Guardrails for AI-written JS/TS: scans, weakened-test checks, package checks, verify before done.

by ai-guard-dev · MCP server

Listed on: Official MCP Registry · Describes nearly the same job
bug-detective

Systematically debug issues with step-by-step troubleshooting approaches.

by Anonymous · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
Unslopify

Language-agnostic code-quality review for contract strength, single responsibility, failure integrity, and duplicated knowledge.

by Shane Vitarana · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
vibe-audit

Interactive feature audit for vibe-coded projects - finds dead code through conversation

by Ilia Izmailov · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
debugger

Debugging specialist for errors, test failures, and unexpected behavior. Use proactively when encountering any issues.

by Anand Tyagi · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
nostics

Claude Code plugin for nostics: structured diagnostic codes for JavaScript/TypeScript libraries and frameworks

by Eduardo San Martin Morote · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job

Its card, with similar plugins by marketplace

What each says it does

async-fixer

In its own words, on Community GitHub marketplaces:

Detect async/await anti-patterns and race conditions

SonarQube MCP Server

In its own words, on Official MCP Registry:

Analyze code quality and security with SonarQube Server or Cloud directly in AI assistants.

How to run each

async-fixer

No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.

SonarQube MCP Server As a local MCP server: Docker image

Claude Code

claude mcp add --env "SONARQUBE_ORG=<YOUR_SONARQUBE_ORG>" --env "SONARQUBE_TOKEN=<YOUR_SONARQUBE_TOKEN>" --env "SONARQUBE_URL=<YOUR_SONARQUBE_URL>" --transport stdio sonarqube-mcp-server -- docker run -i --rm -e SONARQUBE_ORG -e SONARQUBE_TOKEN -e SONARQUBE_URL docker.io/sonarsource/sonarqube-mcp

Requires: SONARQUBE_ORG (secret), SONARQUBE_TOKEN (secret), SONARQUBE_URL (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 async-fixer publish no list of tools, so we do not compare tools.

Settings each asks for

The marketplaces of async-fixer publish no settings it asks for, so we do not compare settings.

What it can do: async-fixer · What it can do: SonarQube MCP Server · 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. 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 2026-11-13. We publish no contact details for plugin publishers.