Two things I built recently that the Bitcoin community might find useful:
Sats Calculator: http://5.78.129.127/sats Real-time USD↔sats conversion with live BTC price. Clean, fast, no ads.
Lightning API Checkout: http://5.78.129.127/checkout/ Developer tools API where paid tiers accept Lightning sats. Scan QR → pay → get API key. No email, no KYC.
The API itself has 28 endpoints (DNS lookups, SSL checks, email validation, crypto prices, QR codes, etc). Free tier is 50 req/day.
The Lightning integration uses Coinos.io for invoice generation and real-time payment verification. Been working reliably for weeks.
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