BOLT11 Feature-Bits Inspector

Inspect tag-9 feature bit payloads quickly — 5 sats

About

Extract BOLT11 feature-bits metadata from tag 9. Returns feature-tag count, payload hex values, and normalized byte sizing so clients can quickly check whether feature bits are present and parseable.

Try It

5 sats via L402.

BOLT11 invoice

API Usage

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

Sample Response

{
  "ok": true,
  "currency": "bc",
  "payment_hash": "...",
  "has_feature_bits": true,
  "feature_bit_tags": 1,
  "feature_bits_hex": ["..."],
  "feature_bits_bytes": [2],
  "feature_bits_total_bytes": 2,
  "feature_bits_parseable": true
}

Also available via MCP at maximumsats.com/mcp