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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionCrawlieFast, free, open-source website audit MCP server for technical SEO and Generative Engine Optimization (GEO).NPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS50 / 100 · D79 / 100 · B
Reliability8 / 2012 / 20
Security and permissions9 / 2016 / 20
Maintenance8 / 2018 / 20
Documentation12 / 2018 / 20
Setup experience13 / 2015 / 20
Best for
  • Developers and marketers needing a free, local-first SEO/GEO audit tool.
  • Teams wanting to integrate website audits into agent workflows.
  • Users needing CI/CD integration and structured JSON output.
  • SEO professionals aiming to optimize for AI search (like ChatGPT, Perplexity).
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users requiring enterprise support or a hosted cloud service (Crawlie Cloud is closed-source).
  • Users needing additional plugin ecosystems beyond the 57 built-in rules.
  • Beginners who prefer a pure GUI and no CLI or agent interaction (desktop app available but separate download).
  • Projects outside the NPM ecosystem (e.g., pure Python/Go)
  • Environments without network access to deps.dev, OSV.dev, and the npm registry
  • Scenarios requiring maintenance by an official upstream vendor
Required permissions
  • Local network access to crawl target websites.
  • Execution of the binary (installed automatically via npm).
  • For hosted endpoint: API key and network access.
  • Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
  • Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
Risks and side effects
  • Crawling websites may violate their robots.txt or terms of service; ensure you have permission to crawl the target site.
  • The MCP server is open-source and may not have undergone extensive security audits; assess your own risk.
  • For hosted services, your data is sent to Crawlie's servers; be aware of privacy implications.
  • Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
  • Depends on availability and accuracy of external services
  • Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
  • Third-party open source project, not officially maintained by NPM or Anthropic
Supported clientsClaude Desktop, Claude Code, Cursor, ClineClaude Desktop, VS Code, Cursor
Tools1219