MCP servers tagged capture-the-flag

1 live MCP servers tagged "capture-the-flag", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with capture-the-flag.

live servers

avg trust

MCPGoat

Deliberately vulnerable MCP server (aka MCP Goat) for security training — 26 challenges across 4 difficulty levels (incl. a secure reference), a victim-agent harness, and one-comm…