| 07 | Token state check | Nutshell, cashu-ts, cdk, Minibits, macadamia, Sovran | Nutshell, cdk-mintd, nutmix |
| 08 | Overpaid Lightning fees | Nutshell, cashu-ts, cdk, Minibits, macadamia | Nutshell, cdk-mintd, nutmix |
| 09 | Signature restore | Nutshell, cashu-ts, cdk, Cashu.me, Minibits, macadamia, Sovran | Nutshell, cdk-mintd, nutmix |
| 10 | Spending conditions | Nutshell, cdk, cashu-ts, Minibits, Sovran | Nutshell, cdk-mintd, nutmix |
| 11 | Pay-To-Pubkey (P2PK) | Nutshell, cashu-ts, cdk, Cashu.me, Minibits, Sovran | Nutshell, cdk-mintd, nutmix |
| 12 | DLEQ proofs | Nutshell, cashu-ts, cdk, Minibits | Nutshell, cdk-mintd, nutmix |
| 13 | Deterministic secrets | Nutshell, cashu-ts, cdk, macadamia, Minibits, Sovran | - |
| 14 | Hashed Timelock Contracts (HTLCs) | Nutshell, cashu-ts, cdk | Nutshell, cdk-mintd, nutmix |
| 15 | Partial multi-path payments (MPP) | Nutshell, cdk | Nutshell, cdk-mintd, nutmix |
| 16 | Animated QR codes | Cashu.me, macadamia, Minibits | - |
| 17 | WebSocket subscriptions | Nutshell, cashu-ts, cdk, Cashu.me, Minibits, Sovran | Nutshell, cdk-mintd, nutmix |
| 18 | Payment requests | cashu-ts, Cashu.me, cdk, Minibits, Sovran | - |
| 19 | Cached Responses | cashu-ts | Nutshell, cdk-mintd, nutmix |
| 20 | Signature on Mint Quote | cashu-ts, cdk, Nutshell | cdk-mintd, Nutshell, nutmix |
| 21 | Clear authentication | Nutshell, cashu-ts, cdk | Nutshell, cdk-mintd, nutmix |
| 22 | Blind authentication | Nutshell, cashu-ts, cdk | Nutshell, cdk-mintd, nutmix |
| 23 | Payment Method: BOLT11 | Nutshell, cashu-ts, cdk, Cashu.me, Minibits, Sovran | Nutshell, cdk-mintd, nutmix |
| 24 | HTTP 402 Payment Required | - | - |
| 25 | Payment Method: BOLT12 | cdk, cashu-ts | cdk-mintd |
| 26 | Payment Request Bech32m Encoding | cdk, cashu-ts, Sovran | - |
| 27 | Nostr Mint Backup | Cashu.me, cdk | - |
| 28 | Pay to Blinded Key (P2BK) | cdk, cashu-ts | - |
| 29 | Batched Mint | cdk, cashu-ts | Nutshell, cdk-mintd |
| 30 | Payment Method: Onchain | cdk, cashu-ts, Cashu.me | cdk-mintd |