{"id":"aarnadlr-mcu-mcp-server","name":"mcu-mcp-server","homepage":"https://mcu-mcp.vercel.app","repo_url":"https://github.com/aarnadlr/mcu-mcp-server","category":"ai-ml","subcategories":[],"tags":["mcp","mcp-server","express","color-theory","theming","material-color-utilities","api","tooling"],"what_it_does":"An MCP (Model Context Protocol) server implemented with Express.js that exposes a tool to generate a color scheme from a provided seed color using Google’s Material Color Utilities library.","use_cases":["Generate UI color palettes from a single seed color for design systems","Provide an MCP tool for agents to produce consistent color schemes","Support rapid theming and prototyping (e.g., web/app theming)"],"not_for":["Production-grade security-sensitive deployments without additional hardening/auth controls","Use cases requiring bulk/batched palette generation with documented performance characteristics"],"best_when":"You want a simple MCP tool to deterministically derive a Material-style palette from an input seed color and you can host the service yourself.","avoid_when":"You need documented auth, rate limits, or strong operational guarantees (SLA, retry semantics) from this package as-is.","alternatives":["Implement the same palette logic as a local library/API call rather than an MCP server","Use an existing MCP server/tool registry that already provides authenticated, documented transport endpoints","Expose a small REST API wrapper around Material Color Utilities with OpenAPI + robust error/rate-limit documentation"],"af_score":42.2,"security_score":38.5,"reliability_score":27.5,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T20:03:11.489316+00:00","interface":{"has_rest_api":true,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":null,"has_sdk":false,"sdk_languages":["JavaScript/TypeScript (Node.js)"],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"No authentication/authorization mechanism is described in the provided README/manifest."},"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 is provided (appears to be an open-source-style self-hosted package)."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":42.2,"security_score":38.5,"reliability_score":27.5,"mcp_server_quality":55.0,"documentation_accuracy":40.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":100.0,"rate_limit_clarity":0.0,"tls_enforcement":60.0,"auth_strength":20.0,"scope_granularity":20.0,"dependency_hygiene":50.0,"secret_handling":50.0,"security_notes":"TLS/auth/rate limiting are not described. Dependencies include @material/material-color-utilities, MCP SDK, and common Node middleware (cors, dotenv, express). Without explicit guidance, assume default Express behaviors; secure deployment should enforce HTTPS, add authentication/authorization, and set appropriate CORS and input validation around the MCP tool.","uptime_documented":0.0,"version_stability":40.0,"breaking_changes_history":50.0,"error_recovery":20.0,"idempotency_support":"true","idempotency_notes":"Palette generation is expected to be deterministic for the same seed; however, idempotency guarantees and tool semantics are not documented in the provided materials.","pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Auth, rate limiting, and request/response schemas for the MCP tool are not documented in the provided README/manifest; an agent may need to inspect runtime behavior.","Only a generic 'POST /mcp' transport endpoint is mentioned; specific tool name/arguments/response fields are not included, so tool invocation may require additional discovery."]}}