How USDC payments work on Solana.

Accept USDC on Solana with Fianto: set up your account and receiving wallet, create a price, open a checkout session from your server, and confirm by webhook.

How a USDC subscription is collected on Solana: what the customer signs, the cap per period, the program that checks every collection, and how it stops.

What happens when a USDC renewal fails: the four fixed attempts, which failures count, the past-due state, the webhooks your server gets, and when it ends.

Why subscribing to a USDC plan on Solana costs a little SOL in account rent, which accounts hold it, and how the subscription rent comes back after it ends.

Use Fianto's signed webhooks to grant, pause and revoke access by payment status: the events, verifying signatures, retries, duplicates and the source of truth.