BOLT11 Expiry Checker

About

Get a compact expiry result for BOLT11 invoices: issue time, expiration time, seconds remaining, and an urgency bucket (ok, soon, critical, expired).

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API Usage

curl -X POST https://maximumsats.com/api/bolt11-expiry \
  -H "Content-Type: application/json" \
  -d '{"invoice": "lnbc..."}'

Sample Response

{
  "payment_hash": "...",
  "expires_at_iso": "2026-02-18T10:00:00.000Z",
  "seconds_remaining": 224,
  "urgency": "critical",
  "is_expired": false
}