ShieldMCP
MCP Security Scanner
ShieldMCP launched on June 25, 2026 with 5 votes, #2,466 of 22,647 launches that month and more than 75% of that year's launches.
What it does
ShieldMCP scans your MCP configuration for security risks in ~60 seconds. Drop in your claude_desktop_config.json, Cursor, or Windsurf config and get an instant risk score across the OWASP MCP Top 10: exposed secrets, excessive permissions, tool poisoning, command injection, supply chain risks, and data exfiltration combos. Free scan shows your score + flagged issues. $49 one-time unlocks the full PDF report with exact config fixes and copy-paste JSON examples.
Scan your MCP configuration for OWASP MCP Top 10 vulnerabilities. Find permission risks, exposed secrets, and supply chain threats in 60 seconds.
Find out in 60 seconds. ShieldMCP scans your MCP configuration and flags permission risks, exposed secrets, and supply chain threats — before an attacker does. Drop your file or paste JSON. Supports claude_desktop_config.json, .cursor/mcp.json, and more. 60-second check across all OWASP MCP Top 10 categories. No account needed. Get exact config fixes in plain English. Unlock the full report for copy-paste JSONfrom shieldmcp.net
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MCP-Shield – Detect security issues in MCP servers2025 · github.com · ▲134I noticed the growing security concerns around MCP (https://news.ycombinator.com/item?id=43600192) and built an open source tool that can detect several patterns of tool poisoning attacks, exfiltration channels and cross-origin manipulations. MCP-Shield scans your installed servers (Cursor, Claude Desktop, etc.) and shows what each tool is trying to do at the instruction level, beyond just the API surface. It catches hidden instructions that try to read sensitive files, shadow other tools' behavior, or exfiltrate data. Example of what it detects: - Hidden instructions…
Browser MCP – Automate your browser using Cursor, Claude, VS Code2025 · browsermcp.io · ▲616Browser MCP connects AI applications to your browser so you can automate tasks using AI. Supported by Claude, Cursor, VS Code, Windsurf, and more.
MCP Defender2025 · mcpdefender.com · ▲152Hi HN, MCP Defender is an open source desktop app that automatically proxies your MCP traffic in AI apps like Cursor, Claude, Windsurf and VSCode. It then scans all requests and responses between the apps and the MCP tools they call. If it detects anything malicious, it alerts you and lets you allow or block the tool call. While the threat landscape of MCP is still being actively researched, there are dangerous things that MCP Defender can block today. For example, a developer asks Cursor to fix a Github issue with an attached crash log. However, the Github issue was created by an attacker…


MCP Security Suite2025 · github.com · ▲36Hi HN! We kept seeing devs get pwned through MCP tools in ways that security scanners completely miss. So we built an open-source analyzer to catch these attacks. Our first OSS by Mighty team. The problem: At Defcon, we saw MCP exploits with 100% success rate against Claude and Llama. Three attack patterns: Hidden Unicode in "error messages" - Paste a colleague's error into Claude, your SSH keys get exfiltrated Trusted tool updates - That database tool you've used for months? Last week's update added credential theft Tool redefinition - Malicious tool redefines "deploy to prod" to run…
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