Free 'Memory-First AI Operator' course as an MCP server — take it inside Claude, Cursor, Codex or ChatGPT. Bundled curriculum (6 levels +
Free
8 servers across learning & documentation, other, security & testing and search. The largest is Academy.
Learning & Documentation · Other · Security & Testing · Search
8
servers published
4 categories
10k
downloads
counted by the registries
0
followers
told when a release lands
7 of 8
security-scanned
servers with a scan grade
8 MCP servers, most downloaded first. 8 of 8 are free to start.
Local-first personal productivity MCP server for Claude, Cursor, and any MCP client. Email, Calendar, Messaging, Search, Image Generation
Free
Test-harness CLI that audits any MCP server for Claude Code v2.1.118 mcp_tool lifecycle-hook readiness (idempotency, latency, determinism
Free
Defense-in-depth bundle for MCP stdio servers: drop-in guard for child_process.exec/spawn, AST audit CLI for unsanitized shell calls, and a
Free
CLI tool that scans MCP-server codebases for incompatibilities with MCP-Spec 2026-07-28 RC (Stateless Core, mandatory headers
Free
Give your business its own AI agent and run it from any MCP client.
Free
Codemod and compatibility-matrix tool for migrating MCP server repos across spec versions (2024-11-05, 2025-03-26, 2025-06-18, 2025-11-25)
Free
v0.1 policy-synthesis (descriptor-only) for MCP-server RCE defense: landlock/sandbox-exec/cgroups-v2 profile builder + CVE-replay
Free
Authentication
1 of 8 use OAuth
The rest either hold an API key issued by the publisher or ask for nothing.
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