Skylos vs Charles MCP Server

Choosing between Skylos and Charles MCP Server? Both are monitoring MCP servers, but they lean into different workflows. This page focuses on where each one is actually stronger, not just raw counts.

Choose Skylos for

Cleaning up legacy codebases by identifying and removing unused functions.

Choose Charles MCP Server for

Debugging API integration issues by inspecting real-time request/response payloads.

Skylos

344by duriantacostdio

Find dead code, secrets, and exploitable flows in Python, TypeScript, and Go.

Best for Cleaning up legacy codebases by identifying and removing unused functions.

Skylos: Dead Code and Security PR Gate for Modern Codebases Find dead code, secrets, and exploitable flows in Python, TypeScript, and Go. Add a pull request gate in minutes.

📖 Website · Documentation · Blog · VS Code Extension.

What it does

  • Detects dead code in Python, TypeScript, and Go projects
  • Identifies security vulnerabilities like SQLi and hardcoded secrets
  • Framework-aware analysis for FastAPI, Django, pytest, and Next.js
  • Provides AI-powered analysis and remediation suggestions
  • Supports CI/CD integration with quality gates and PR annotations

Available tools (2)

scanScans the codebase for dead code, security vulnerabilities, and quality issues.
defendPerforms AI defense checks for Python LLM integrations.
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vs

Charles MCP Server

118by heizaheizastdio

Integrates Charles Proxy with MCP clients for real-time network traffic analysis

Best for Debugging API integration issues by inspecting real-time request/response payloads.

English README | Tool Contract.

Charles MCP Server 用于把 Charles Proxy 接入 MCP 客户端，让 agent 可以稳定地读取实时流量、分析历史录包，并在需要时再展开单条请求细节。.

What it does

  • Real-time network traffic capture from Charles Proxy
  • Structured analysis of historical and live traffic sessions
  • Summary-first approach to reduce token usage during debugging
  • Drill-down capability for detailed request inspection
  • Automated configuration support for major MCP clients

Available tools (2)

get_trafficRetrieves captured network traffic from Charles Proxy for analysis
get_request_detailFetches detailed information for a specific network request

Setup requirements

Requires 5 environment variables: CHARLES_USER, CHARLES_PASS, CHARLES_PROXY_HOST, CHARLES_PROXY_PORT, CHARLES_MANAGE_LIFECYCLE. Available via Claude Code CLI and Claude Desktop / Cursor.

View Charles MCP Server details

Biggest differences

CompareSkylosCharles MCP Server
Best forCleaning up legacy codebases by identifying and removing unused functions.Debugging API integration issues by inspecting real-time request/response payloads.
StandoutDetects dead code in Python, TypeScript, and Go projects.Real-time network traffic capture from Charles Proxy.
SetupPip, stdio transport.Claude Code CLI or Claude Desktop / Cursor, needs 5 env vars, stdio transport.
Transportstdiostdio
Community344 GitHub stars118 GitHub stars

Bottom line

Pick Skylos if...

Cleaning up legacy codebases by identifying and removing unused functions. Detects dead code in Python, TypeScript, and Go projects. Pip, stdio transport.

Pick Charles MCP Server if...

Debugging API integration issues by inspecting real-time request/response payloads. Real-time network traffic capture from Charles Proxy. Claude Code CLI or Claude Desktop / Cursor, needs 5 env vars, stdio transport.

The real split here is workflow fit, not raw counts. Skylos: Cleaning up legacy codebases by identifying and removing unused functions. Charles MCP Server: Debugging API integration issues by inspecting real-time request/response payloads. Skylos also has the larger public footprint (344 vs 118 stars).

Keep the comparison logic in memory

Once you pick a server, keep the decision notes, setup rules, and docs in Conare so your agent can apply them again without re-explaining.

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How to set up Skylos → How to set up Charles MCP Server →