Fianto

Fianto brings stablecoin subscriptions to Solana: a customer approves a plan once in their wallet, up to a spending cap, and each billing period's USDC payment moves straight from their wallet to the merchant's. Fianto never holds the money ("there is no Fianto balance"); a public on-chain program, built on the Solana Foundation's Subscriptions program and audited by Cantina, refuses any charge above the customer's cap and pays only the merchant's wallet. Customers don't need SOL, since Fianto covers the Solana fees and account rent.

Failed renewals are handled by fixed rules: nothing is taken, the subscription goes past due, and Fianto retries after an hour, six hours and a day before ending the subscription, without ever charging the missed period later. Beyond subscriptions, Fianto offers one-off checkout from any Solana wallet, payment links and a no-code shop, a customer portal for viewing and cancelling plans, and a dashboard with revenue, failed payments and CSV export; invoices are coming soon.

It's aimed at SaaS and API providers, memberships, newsletters, agencies and creators selling paid Discord or Telegram access. Developers get an API, signed webhooks, SDKs for Next.js, Hono and Express, a CLI for testing webhooks and an agent skill that helps AI coding tools add USDC payments to an app. Every business is reviewed by a person. Fianto is in beta with no Fianto fee, with at least 30 days' notice before any fee; more tokens and networks are planned. Fianto is part of Superteam South Korea.