What is the key difference between Roslyn Codelens MCP and Opik MCP?

Roslyn Codelens MCP belongs to the Monitoring category with local stdio execution, while Opik MCP belongs to the Monitoring category with local stdio execution.

How do I install Roslyn Codelens MCP or Opik MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Roslyn Codelens MCP and Opik MCP free or paid?

Roslyn Codelens MCP operates under a Free / Open Source model (No auth required). Opik MCP operates under a BYOK (Pay Provider Direct) model (API Key required).

Which MCP server has more tools and community activity?

Roslyn Codelens MCP lists 6 tools with 3 views and 49 GitHub stars. Opik MCP lists 1 tools with 1 views and 221 GitHub stars.

Can I use both Roslyn Codelens MCP and Opik MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Roslyn Codelens MCP vs Opik MCP

In-depth architectural comparison of the Roslyn Codelens MCP and Opik MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Roslyn Codelens MCP

Monitoring · Local stdio

Quality: 59/100 (Good) | Auth: No auth required

Opik MCP

Monitoring · Local stdio

Quality: 61/100 (Good) | Auth: API Key required

Verdict Summary: Choose Roslyn Codelens MCP if you need specialized Monitoring tools running via a local process. Choose Opik MCP if your workspace requires Monitoring integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Roslyn Codelens MCP when:

You need dedicated capabilities in the Monitoring domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Roslyn-based semantic symbol analysis, Call graphs and type hierarchy inspection, Diagnostics, code fixes, and refactoring actions.

Explore Roslyn Codelens MCP Details

Choose Opik MCP when:

You need dedicated capabilities in the Monitoring domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
You have access to required keys: OPIK_API_KEY, OPIK_WORKSPACE, COMET_WORKSPACE, COMET_URL_OVERRIDE, OPIK_URL, OPIK_MCP_ANALYTICS_SOURCE.

Feature & Specification Comparison

Specification	Roslyn Codelens MCP MarcelRoozekrans Monitoring	Opik MCP Comet-ML Monitoring
Summary	⃣ 🏠 🍎 🪟 🐧 - Roslyn-based MCP server with 22 semantic code intelligence tools for .NET. Type hierarchies, call graphs, DI registrations, diagnostics, code fixes, complexity metrics, and more. Sub-millisecond lookups via pre-built indexes.	Use natural language to explore LLM observability, traces, and monitoring data captured by Opik.
Category & Scope

Tools & Capabilities Breakdown

Roslyn Codelens MCP Tools (6)

Roslyn-based semantic symbol analysis

Call graphs and type hierarchy inspection

Diagnostics, code fixes, and refactoring actions

Test coverage and skeleton generation

API, architecture, and code-quality audits

External assembly and IL inspection

Opik MCP Tools (1)

read_skill

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Roslyn Codelens MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "marcelroozekrans-roslyn-codelens-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "roslyn-codelens-mcp"
      ]
    }
  }
}

Opik MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "comet-ml-opik-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "opik-mcp"
      ],
      "env": {
        "OPIK_API_KEY": "YOUR_OPIK_API_KEY_HERE",
        "OPIK_WORKSPACE": "YOUR_OPIK_WORKSPACE_HERE",
        "COMET_WORKSPACE": "YOUR_COMET_WORKSPACE_HERE",
        "COMET_URL_OVERRIDE": "YOUR_COMET_URL_OVERRIDE_HERE",
        "OPIK_URL": "YOUR_OPIK_URL_HERE",
        "OPIK_MCP_ANALYTICS_SOURCE": "YOUR_OPIK_MCP_ANALYTICS_SOURCE_HERE"
      }
    }
  }
}

Frequently Asked Questions

Roslyn Codelens MCP is categorized under Monitoring and uses a local stdio subprocess. In contrast, Opik MCP belongs to Monitoring using local stdio subprocess. Select Roslyn Codelens MCP when you need capabilities focused on monitoring and Opik MCP when you require tools for monitoring.

More alternatives to Roslyn Codelens MCP More alternatives to Opik MCP Monitoring category hub Canonical compare URL