Assay vs Fetch Guard

Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.

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A
Assay
Rul1an
🔒 Security
F
🔒 Security
SummaryPolicy-as-code gate for MCP. A fail-closed proxy that denies risky tool calls before they run, produces offline-verifiable evidence bundles of what executed, and enforces IPv4/TCP egress in-kernel via eBPF/LSM and Landlock on Linux. Deterministic and offline-first.URL fetcher and HTML-to-markdown converter with three-layer prompt injection defense: pre-extraction sanitization of hidden/off-screen elements and non-printing Unicode, 15-pattern risk scanning (HIGH/MEDIUM/OK), and per-request session-salt content boundary wrapping.
Quality signal23/100 (Emerging)24/100 (Emerging)
Install pathnpx · lowpip · high
Engagement 0 0 0 0 0 0 1
ToolsNot listed yetNot listed yet
Verified / officialNoNo
Open listingView AssayView Fetch Guard
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