7 production-ready micro-APIs for modern applications. Simple integration, reliable infrastructure, transparent pricing.
Each API is independently deployable, fully documented, and ready for production.
Generate QR codes in PNG or SVG format. Customize size, colors, and error correction levels.
astra-qrcode-api.onrender.com
Validate email addresses with syntax checking, MX record verification, and disposable email detection.
astra-email-validator-api.onrender.com
Analyze text sentiment with confidence scores. Detect positive, negative, and neutral content.
astra-sentiment-api.onrender.com
Extract Open Graph metadata from any URL. Get titles, descriptions, images, and social data.
astra-link-preview-api.onrender.com
Calculate Flesch-Kincaid, Gunning Fog, and other readability scores. Get writing improvement suggestions.
astra-readability-api.onrender.com
Capture full-page screenshots of any website. Powered by Playwright for accurate rendering.
astra-screenshot-api.onrender.com
Generate professional HTML invoices from JSON data. Support for taxes, multiple currencies, and line items.
astra-invoice-api.onrender.com
Simple, reliable, and scalable infrastructure.
Sub-100ms responses for most endpoints. Optimized for speed.
HTTPS everywhere. No sensitive data logging. CORS configured.
Every API includes /docs with interactive Swagger documentation.
Deployed on Render with automatic scaling and SSL.
Start building immediately. Scale when you're ready.
Clean, predictable endpoints. JSON in, JSON out.