Roslyn CodeLens MCP server
Roslyn MCP server: semantic .NET/C# intelligence - analysis, refactoring, tests, IL inspection.
not scanned yet
57 stars97 downloads/wk
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Roslyn CodeLens tools
No tool declarations could be read from the package source. They show once the server is installed.
How Roslyn CodeLens compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 92/100
- higher than 95% of 48,255 servers
- GitHub stars
- 57
- more than 95% of 28,688 servers
- Downloads a week
- 97
- more than 62% of 12,191 servers with a package
Release history: 3 versions in the registry since 2026-08-21, latest 2026-10-13, typically one every 27 days.
Install Roslyn CodeLens in Claude Code, Cursor or VS Code
Runs npx -y roslyn-codelens-mcp on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add roslyn-codelens -- npx -y roslyn-codelens-mcp
What the publisher says
From the Roslyn CodeLens repository's README, as published. We do not edit it. Read it on GitHub
Roslyn CodeLens MCP Server
A Roslyn-based MCP server that gives AI agents deep semantic understanding of .NET codebases — type hierarchies, call graphs, DI registrations, diagnostics, refactoring, and more.
<!-- mcp-name: io.github.MarcelRoozekrans/roslyn-codelens -->
Hosted deployment
A hosted deployment is available on Fronteir AI.
Features
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
Roslyn CodeLens: common questions
- Is Roslyn CodeLens MCP server safe?
- Yes, by our scan: it is graded A (92/100). Read the Roslyn CodeLens safety report
- How do I install Roslyn CodeLens?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does Roslyn CodeLens need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Roslyn CodeLens maintained?
- The last commit was 34 days ago (2026-10-01). The latest release is v2.18.2.
- What can I use instead of Roslyn CodeLens?
- Servers from other publishers that do the same job: Sem MCP server.
- How does Roslyn CodeLens compare with other MCP servers?
- safety score 92/100 (higher than 95% of 48,255 servers); github stars 57 (more than 95% of 28,688 servers); downloads a week 97 (more than 62% of 12,191 servers with a package). Full comparison.
Alternatives to Roslyn CodeLens
Same job from other publishers: the closest match first, then the best rated.
- SemEntity-level code intelligence: semantic diff, impact analysis, blame, and context for AI agentsnot reviewedWidely usedB
