{"id":"murkfox-ctf-mcp-server","name":"CTF_MCP_Server","af_score":28.5,"security_score":16.5,"reliability_score":15.0,"what_it_does":"CTF MCP Server is described as an MCP (Model Context Protocol) server that exposes crypto- and puzzle-related helper functions for CTFs, such as AES/Vigenère decryption helpers, base64 and XOR utilities, Caesar shifting, frequency analysis, basic arithmetic, and an RSA factorization helper.","best_when":"You want local/isolated tooling to help with common CTF transformations and crypto challenge exploration through an MCP-compatible agent/client.","avoid_when":"You need rigorous cryptographic correctness guarantees, hardened security controls, or you plan to process sensitive/high-value data with an unreviewed custom MCP server.","last_evaluated":"2026-04-04T21:21:26.871288+00:00","has_mcp":true,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_gotchas":["No MCP protocol/tool schema is provided in the README, so an agent may not know exact tool names, parameter schemas, and expected input/output formats.","Crypto helpers can fail on malformed inputs (e.g., wrong key/IV sizes, invalid base64). Without documented error formats and constraints, agents may need defensive parsing.","No guidance on output structure, limits, or maximum input sizes is provided."],"error_quality":0.0}