{"id":"murkfox-ctf-mcp-server","name":"CTF_MCP_Server","homepage":null,"repo_url":"https://github.com/MurkFox/CTF_MCP_Server","category":"ai-ml","subcategories":[],"tags":["ctf","mcp","crypto","encryption","decryption","string-transforms","analysis"],"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.","use_cases":["Interactive CTF solving workflows via an MCP client","Decoding/transforming strings (base64, Caesar, XOR) during challenges","Assisting with classical crypto analysis (frequency analysis)","Attempting RSA-related operations such as factoring n"],"not_for":["Production cryptography, security-critical cryptographic operations","Handling sensitive secrets without review and proper isolation","Environments requiring strong compliance guarantees or audit-ready operational behavior"],"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.","alternatives":["General-purpose CTF/crypto toolkits and libraries (e.g., Python/Rust crypto utilities)","Off-the-shelf puzzle-solving services or scripts with audited implementations","Build a small, well-tested internal service around audited crypto libraries and expose it via MCP/REST"],"af_score":28.5,"security_score":16.5,"reliability_score":15.0,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:21:26.871288+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"No authentication or authorization details are provided in the README. The only configuration snippet shows launching an executable with env {} but no auth mechanism is described."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"No pricing information provided."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":28.5,"security_score":16.5,"reliability_score":15.0,"mcp_server_quality":45.0,"documentation_accuracy":30.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":30.0,"rate_limit_clarity":0.0,"tls_enforcement":20.0,"auth_strength":10.0,"scope_granularity":0.0,"dependency_hygiene":40.0,"secret_handling":20.0,"security_notes":"As provided, there is no mention of authentication/authorization, transport security, logging practices, or safe handling of secrets. TLS enforcement is unknown (README does not specify network exposure). Dependency hygiene cannot be assessed from the provided metadata/README alone.","uptime_documented":0.0,"version_stability":40.0,"breaking_changes_history":0.0,"error_recovery":20.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_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."]}}