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A curated registry of Model Context Protocol servers, each with an automated security grade from our tool-surface scanner.
Context for the grades below — how inspection, tool poisoning, and the grade-vs-gate split work. Directory letters are Andrax scanner grades (mcpgrade-1.4.0), not Guard runtime scores.
Soft CTA: a grade finds risk on a snapshot; Guard enforces runtime controls on live MCP traffic (Free / Pro $49 / Team $399). Do not equate Andrax grades with Guard scores.
Run an MCP server? Paste its remote endpoint — we'll scan it (read-only) and publish a free, reproducible security grade. Genuine MCP servers get listed instantly.
Russian books search, detail lookup, and recommendation discovery.
Most Recommended Books is a read-only MCP server for verified book recommendations and reading lists.
Find personalized puzzle books by first name from a 100,000+ title Shopify catalog.
Search books and authors, fetch editions, browse subjects, and resolve cover images from Open Library.
Book metadata, editions, and author data from the Open Library API.
Search and retrieve public domain books from Project Gutenberg via the Gutendex API.