Roslyn CodeLens
Roslyn MCP server: semantic .NET/C# intelligence - analysis, refactoring, tests, IL inspection.
MCP server · by MarcelRoozekrans
About
Roslyn CodeLens is an MCP server published by MarcelRoozekrans. Marketplaces we read that list it: 1 (Official MCP Registry). The last change we recorded was on 2026-10-12. As of our marketplace pass on 2026-10-12.
What it asks for
- Runs on your machine
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: npm package
Built from what Official MCP Registry declares.
claude mcp add --transport stdio roslyn-codelens -- npx -y roslyn-codelens-mcp[mcp_servers.roslyn-codelens]
command = "npx"
args = ["-y", "roslyn-codelens-mcp"]{
"mcpServers": {
"roslyn-codelens": {
"command": "npx",
"args": [
"-y",
"roslyn-codelens-mcp"
]
}
}
}We do not store launch arguments. If the server needs any, its own documentation names them.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 2.18.1 | Forks (GitHub): 16 Stars (GitHub): 61 |
Not marked |
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.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
A local MCP server for Roslyn-powered C# code analysis and safe, transactional refactoring.
-
roslyn-mcp io.github.darylmcd/roslyn-mcp
Local-first MCP server for semantic C# analysis & refactoring via Roslyn & MSBuildWorkspace.
-
roz-mcp io.github.andypgray/roz-mcp
Roslyn-powered C# code navigation, blast-radius analysis, and verified edits for coding agents.
-
MCP server for C# code analysis and automated fixing using Roslyn analyzers and code fix providers.
-
67 semantic C#/.NET analysis tools via Roslyn: navigation, refactoring, codegen, audit.
-
Roslyn-powered MCP server for C#/VB.NET. Query symbols, call graphs, and facts. 90%+ token savings.
-
dotnetdevmcp io.github.csa7mdm/dotnetdevmcp
MCP server that gives AI coding agents Roslyn's compiler view of a .NET solution.
-
A read-only MCP server that lets an AI assistant browse any C# solution through Roslyn.
-
glider io.github.glidermcp/glider
Roslyn-powered C# code analysis server for LLMs. Supports stdio and HTTP transports.
-
Symbol-aware C# and .NET code context for AI coding assistants.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
C# language server for code intelligence
-
socraticode io.github.giancarloerra/socraticode
MCP server for enterprise local codebase indexing, semantic search, and code dependency graphs.
-
LSP-backed code intelligence for Claude Code via MCP and native LSP. Navigate definitions, references, call hierarchies, type hierarchies, hover documentation, symbols, and…
-
mcp-server io.github.cap-js/mcp-server
Model Context Protocol (MCP) server for AI-assisted development of CAP applications.
-
mdk-mcp-server io.github.SAP/mdk-mcp-server
Model Context Protocol (MCP) server for AI-assisted development of MDK applications.
Has a listing on Claude Code: claude-plugins-official (5)
-
Semantic code analysis MCP server providing intelligent code understanding, refactoring suggestions, and codebase navigation through language server protocol integration.
-
C# language server for code intelligence
-
TypeScript/JavaScript language server for enhanced code intelligence
-
mcp-server io.github.cap-js/mcp-server
Model Context Protocol (MCP) server for AI-assisted development of CAP applications.
-
Rust language server for code intelligence and analysis
Has a listing on Claude: knowledge-work-plugins (5)
-
MCP server for terminal commands, file operations, and process management
-
gk-cli com.gitkraken/gk-cli
The GitKraken MCP Server for managing repos, PRs, issues across GitHub, GitLab, Bitbucket and more.
-
Bring Qodo's codebase intelligence, coding standards, and code review into your coding agent.
-
Security review for Claude-generated code. Pattern-based warnings on edits, LLM-powered diff review on Stop, and an agentic commit reviewer that catches injection, XSS, SSRF…
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
AI-powered code review in Codex, powered by CodeRabbit.
-
Qodo setup, code intelligence, and review workflows.
-
Inspect repositories, triage pull requests and issues, debug CI, and publish changes through a hybrid GitHub connector and CLI workflow.
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
Has a listing on Community GitHub marketplaces (5)
-
Self-hosted GitHub MCP server. PAT auth, stdio transport, transport-agnostic so it works with…
-
4da-mcp-server io.github.4DA-Systems/4da-mcp-server
Upgrade intelligence for AI agents: what an upgrade changes, where it touches your code, CVE scans.
-
The Rokha MCP server plus the first-party skills: find a capability, run it, keep the trace.
-
inquisitor io.github.1111111111111111111114oLvT2/inquisitor
Hypothesis-driven problem solving for AI agents: probe, falsify, escalate.
-
MCP server for terminal commands, file operations, and process management
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Complete toolkit for building Model Context Protocol (MCP) servers in TypeScript/Node.js using the official SDK. Includes instructions for best practices, a prompt for generating…
-
Essential prompts, instructions, and chat modes for C# and .NET development including testing, documentation, and best practices.
-
Complete toolkit for building Model Context Protocol (MCP) servers in Kotlin using the official io.modelcontextprotocol:kotlin-sdk library. Includes instructions for best…
-
dotnet-diag
Skills for .NET performance investigations, debugging, and incident analysis.
-
Complete toolkit for building Model Context Protocol (MCP) servers in Go using the official github.com/modelcontextprotocol/go-sdk. Includes instructions for best practices, a…
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Navigate and interact with your C++ code using the Microsoft C++ Language Server.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Analyze MSVC build performance using vcperf.exe and ETL traces.
Has a listing on Cursor: cursor/plugins (5)
-
Build apps, scripts, and automations with the TypeScript SDK.
-
Skills for building on the Cursor Origin API. Fetch the live spec first, then follow the Origin rules for credentials, scopes, webhooks, paging, and errors. Includes a skill that…
-
Internal team workflows for CI, code review, shipping, local automation, and verification.
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
-
if you want to go fast, go deep first. pstack helps you write less, but higher quality code. rigorous agent workflows you can parallelize with confidence.
Has a listing on Docker MCP Catalog (5)
-
Analyze code quality and security with SonarQube Server or Cloud directly in AI assistants.
-
Provides detailed type information from .NET projects including assembly exploration, namespace discovery, type reflection, and NuGet integration for AI coding agents.
-
Official Arm MCP server for code migration, optimization, and Arm architecture guidance
-
Giving Claude ability to run code with E2B via MCP (Model Context Protocol).
-
Pull up-to-date, version-specific documentation and code examples for any library or framework straight into your prompt.
Has a listing on Official MCP Registry (5)
-
A local MCP server for Roslyn-powered C# code analysis and safe, transactional refactoring.
-
roslyn-mcp io.github.darylmcd/roslyn-mcp
Local-first MCP server for semantic C# analysis & refactoring via Roslyn & MSBuildWorkspace.
-
roz-mcp io.github.andypgray/roz-mcp
Roslyn-powered C# code navigation, blast-radius analysis, and verified edits for coding agents.
-
MCP server for C# code analysis and automated fixing using Roslyn analyzers and code fix providers.
-
67 semantic C#/.NET analysis tools via Roslyn: navigation, refactoring, codegen, audit.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
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.