Scan MCP Servers for OWASP Vulnerabilities From Inside Claude. Here's How.
Every MCP server tutorial teaches you how to build.
None of them teach you how to verify it's secure before deploying.
We built Cybersecify — an MCP security scanner you can run from inside your AI assistant. Claude, Cursor, Windsurf, any MCP client. One
config line, then ask it to scan.
No CLI. No separate tool. Just talk to your AI and it scans for you.
Why this matters
MCP adoption just crossed 97 million SDK downloads. There are 13,000+ servers in the wild. Most have no authentication, no signing, no input validation. We know because we scan them.
CVE-2026-39313 (CVSS 8.7) was a single missing size check in a popular MCP framework. The config existed. The enforcement didn't.
Nobody tested it before shipping.
OWASP now has six standards covering agent and MCP security. No tool tested against them. Until now.
Setup — 30 seconds
Add to your Claude Desktop config (claude_desktop_config.json):
Restart Claude.…