M
MCP Directory CURATED DIRECTORY
911 MCP servers indexed
中文
← Back to directory
COMPARE UP TO 4 SERVERS

Compare MCP servers

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

DimensionBlackVeil DNS & Email Security ScannerDNS & email security scanner with 80 MCP tools, zero installContext7Upstash's official server providing up-to-date third-party library docs for AI coding assistants
FMRS45 / 100 · D80 / 100 · B
Reliability8 / 2014 / 20
Security and permissions10 / 2016 / 20
Maintenance8 / 2017 / 20
Documentation9 / 2015 / 20
Setup experience10 / 2018 / 20
Best for
  • Security auditors
  • DevOps engineers
  • Site owners needing DNS/email security assessments
  • Compliance teams
  • Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
  • Scenarios wanting zero-config documentation lookup
Not for
  • Unauthorized domain reconnaissance
  • Users needing non-DNS features
  • Scenarios requiring local deployment without Cloudflare support
  • Looking up internal/private codebase documentation (Context7 targets publicly published open-source libraries)
  • Cases needing very high coverage of obscure, niche libraries (coverage depends on what Context7's platform has indexed)
Required permissions
  • Queries public DNS via Cloudflare DoH
  • Accesses CT logs and RDAP data
  • Some tools require a paid API key
  • No authorization required from the target domain
  • Usable without an API key (subject to a free-tier rate limit); CONTEXT7_API_KEY is an optional credential for higher quota
  • Read-only documentation lookup — no code execution or local filesystem access involved
Risks and side effects
  • Scan results may reveal sensitive information and should only be used for authorized testing
  • Misuse for unauthorized reconnaissance may violate laws
  • Free tier has limited quota; advanced features require payment
  • Data handling is subject to BlackVeil's privacy policy
  • The free tier has limited quota — high-frequency use may hit rate limits
  • Documentation content comes from Context7's platform index, so its accuracy and freshness depend on that platform's crawl cadence
Supported clientsClaude Desktop, Claude Code, Cursor, VS CodeClaude Code, VS Code, Cursor, Cline, Amp
Tools142