Read-only Go API для personal art archive — метаданные читаются из artworks.json в памяти, защищено статическими API-ключами (SHA-256). Без ORM, без auth-фреймворков: net/http + pgx.

Production-grade MCP server giving AI agents secure, read-only PostgreSQL access — API key auth, SQL sandboxing, PII masking, rate limiting, and audit logging

Production-ready SaaS API for India geography data — Country → State → District → Sub-District → Village. Built with Node.js, Express, Prisma, PostgreSQL, and Redis. Includes API key auth, rate limiting, caching, usage analytics, and Admin + B2B dashboards.