Found it: https://github.com/cashubtc/nuts/blob/main/05.md
You can "melt" a token to pay an LN invoice. To convert to Bitcoin you can plug in an LN invoice from boltz.exchange
This also makes it possible for "nutzap" wallets to do "regular zaps", by getting the invoice and then "melting" to it.
I think it's actually even possible to receive NIP-57 zaps, with a small glue layer between LNURL and the Cashu mint. The server needs to associate their Cashu mint somehow, then it give them a Lightning address. The LNURL call will make a proxy request to the "mint" endpoint internally to generate LN invoices.
Alex Gleason 🐍 /
npub1q3…cd26p
2025-01-25 17:09:52
in reply to nevent1q…2362
Author Public Key
npub1q3sle0kvfsehgsuexttt3ugjd8xdklxfwwkh559wxckmzddywnws6cd26pPublished at
2025-01-25 17:09:52Event JSON
{
"id": "1cbe56649950ee34ebba9f1f5193981f374bd22f05d985749b918352ee2980a1",
"pubkey": "0461fcbecc4c3374439932d6b8f11269ccdb7cc973ad7a50ae362db135a474dd",
"created_at": 1737824992,
"kind": 1,
"tags": [
[
"e",
"d6eed89cbd4592a148e404f0932d8c46e3c3642667f086d069a18358baba7469",
"wss://ditto.pub/relay",
"root",
"0461fcbecc4c3374439932d6b8f11269ccdb7cc973ad7a50ae362db135a474dd"
],
[
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[
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],
[
"r",
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]
],
"content": "Found it: https://github.com/cashubtc/nuts/blob/main/05.md\n\nYou can \"melt\" a token to pay an LN invoice. To convert to Bitcoin you can plug in an LN invoice from boltz.exchange\n\nThis also makes it possible for \"nutzap\" wallets to do \"regular zaps\", by getting the invoice and then \"melting\" to it.\n\nI think it's actually even possible to receive NIP-57 zaps, with a small glue layer between LNURL and the Cashu mint. The server needs to associate their Cashu mint somehow, then it give them a Lightning address. The LNURL call will make a proxy request to the \"mint\" endpoint internally to generate LN invoices.",
"sig": "bcacd42ebd128ab74f8d7b7e7572a4ac772fdcd9001b7eba3effad439bc6295a279f97b604d2b901953658b789886e93c49be6963a18bcd8b6d70cd4f7f465dd"
}