Free & open-source REST API — ISO 3166-1 country metadata, SVG flags in two aspect ratios, and 169K+ cities. No auth required.
🌍 250 countries
🏙️ 169K+ cities
🚩 SVG flags (1×1 & 4×3)
🔄 Auto-updated
🔓 No auth
GET /v1/countries
GET /v1/countries/:code
GET /v1/flags/:code?style=1x1|4x3
GET /v1/cities/:code?search=&limit=20&skip=0