Built a developer tools API (DNS lookups, SSL checks, email validation, etc) and instead of Stripe, the payment system accepts Lightning.
The flow is:
- Pick a tier (pay-per-use at 1500 sats, or monthly plans)
- Lightning invoice appears with QR code
- Pay from any wallet
- API key shows up instantly
No email, no signup, no KYC. The API key IS your identity.
I think this is how developer tools should work in a Bitcoin-native world. Most APIs make you create an account, verify email, add a credit card, wait for approval — all for a $1 tool. With Lightning it’s literally scan-and-go.
Free tier: 50 req/day, zero signup: http://5.78.129.127/api/ Lightning checkout: http://5.78.129.127/checkout/
Also built a sats calculator that pulls live prices: http://5.78.129.127/sats
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