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Istanbul

I build open-source security intelligence tools for AI agents.

ContrastAPI — 29 MCP tools: CVE lookup with EPSS/KEV enrichment, domain recon (DNS, WHOIS, SSL, subdomains), IP reputation, threat intel, code security scanning. No API key required, 100 req/hr free.

  • ⭐ 19 GitHub stars, 853 tests, MIT licensed
  • 🖥️ Solo developer, self-funded, running on a single Hetzner VPS

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