Solana, page 2.
How Solana works under a subscription: token accounts, rent, the Subscriptions program and its checks.
How to close empty token accounts on Solana and get SOL back
Closing an empty token account on Solana sends the SOL it holds as rent back to an address you choose, about 0.00149 SOL for a standard 165-byte account opened at today's rate (measured 15 October 2026). Only accounts with a zero token balance can be closed. Keep the USDC account you pay subscriptions from and the one your business gets paid into: with Fianto, a closed payer account fails the next renewal as a counted failure, and a merchant wallet without one cannot take a single new checkout.
SolanaWhat is an SPL token? Solana's token standard in plain English
An SPL token is a token on Solana that is created and moved by one of Solana's two shared token programs, rather than by its own smart contract. Each SPL token is defined by a mint account, and every holder keeps the balance in a separate token account. USDC on Solana is an SPL token on the original Token program, with 6 decimals, and a one-off payment through Fianto moves it with the Token program straight from the customer's USDC account to the merchant's.
SolanaPayments during Solana congestion or an outage: what happens and what Fianto does
During congestion a Solana payment can wait unprocessed until its blockhash expires, and during an outage nothing new lands at all, so no money moves until blocks are produced again. Fianto rebroadcasts each signed payment until its blockhash is dead, raises the priority fee every time it retries a renewal, and never counts a network error against a subscriber: only an empty wallet, a removed approval, a frozen or a closed token account do. A transaction Fianto cannot decide is held for a person, never failed by a timer.
SolanaToken-2022 vs the original Token program: what merchants need to know
Token-2022, also called Token Extensions, is a second Solana token program at a different address that does everything the original Token program does and adds opt-in extensions such as transfer fees, a permanent delegate, transfer hooks and pausing. The original program has no extensions and will get no new instructions. USDC on Solana is on the original Token program, so none of those extensions can touch a USDC payment, and Fianto builds every transfer for that program.
SolanaWhat is a Solana address? Public keys, PDAs and token accounts in one payment
A Solana address is a 32-byte account identifier written as a base58 string, and it is one of two kinds: the public key of a keypair, which someone can sign for, or a program derived address, which nobody holds a key for. Your wallet address is a public key; your USDC sits in a token account at a program derived address calculated from that wallet. To get paid you give the wallet address, never the token account, and a Fianto merchant proves that wallet by signing with it.
SolanaPrograms, not smart contracts: how Solana runs a subscription payment
A Solana program is what other chains call a smart contract, with one structural difference: the program account holds only executable code, and every piece of state it works on lives in separate accounts that the program owns. A payment program on Solana is therefore a program plus a set of accounts, usually at program derived addresses. The Subscriptions program behind Fianto shows the pattern: a plan account for each price and its terms, one subscription account per subscriber and plan, and one authority account per wallet and token.
SolanaSolana token delegation explained: approvals, caps and who can pull
Token delegation on Solana lets a token account's owner approve one other address, the delegate, to move up to a set amount of that token. A plain approval has no schedule and no destination, so the Solana Foundation's Subscriptions program puts its own authority in the delegate slot and checks every transfer against a cap per period, a list of allowed wallets and a list of allowed signers.
GuidesSolanaStablecoin subscriptions on Solana: how automatic renewals work
A stablecoin subscription on Solana is a recurring payment in a stablecoin such as USDC that the customer approves once in their wallet; after that, each renewal is collected automatically, with no card and no monthly signature. The Solana Foundation's Subscriptions program enforces the cap per period and the wallets the money may go to on chain, so a collection above what the customer approved is refused. With Fianto the merchant pays nothing, and the customer pays a flat 0.01 USDC network fee per charge today plus a little SOL as account rent.