{"service":"DevPack","version":"1.0.0","authentication":"Pass API key via x-api-key header or api_key query parameter","rate_limits":{"free":"60 req/min, ~1,000 req/day","starter":"300 req/min, ~10,000 req/day ($9/mo)","pro":"1,000 req/min, ~50,000 req/day ($29/mo)","business":"5,000 req/min, ~250,000 req/day ($99/mo)"},"endpoints":{"qr_code":{"method":"GET","path":"/api/qr?data=TEXT&size=300&format=png&color=000000&error=M","description":"Generate QR code as PNG or SVG image","params":{"data":"Text or URL to encode (required)","size":"Width in pixels (50-2000, default 300)","format":"png or svg (default png)","color":"Foreground hex color (default 000000)","bg":"Background hex color (default FFFFFF)","error":"Error correction: L, M, Q, H (default M)"}},"qr_data_url":{"method":"GET","path":"/api/qr/data?data=TEXT&size=300","description":"Get QR code as base64 data URL (JSON response)"},"validate_email":{"method":"POST","path":"/api/validate-email","body":{"email":"email@example.com"},"description":"Validate email: syntax, DNS, MX records, disposable check"},"shorten_url":{"method":"POST","path":"/api/shorten","body":{"url":"https://example.com"},"description":"Create a short URL with click tracking"},"page_metadata":{"method":"GET","path":"/api/metadata?url=https://example.com","description":"Extract OpenGraph tags, title, description, favicon"},"stats":{"method":"GET","path":"/api/stats","description":"Get your API usage statistics"}}}