Send USDC on Solana — without buying SOL

On Solana, you normally need SOL in your wallet before you can move anything — even if all you want to do is send USDC.

Sigma9 covers that fee for you. You never need to buy, hold, or top up SOL.

The fee comes out of your USDC instead

When you send USDC on Solana, Sigma9 pays the network fee on your behalf, then takes a small amount from the USDC you're already sending. You see the total before you confirm anything — no surprises, no separate coin to manage.

Meet Kora

Behind the scenes, Sigma9 uses Kora — an open-source helper that pays the Solana network fee on your behalf, so you don't have to keep SOL around. You never deal with it; it just works. Advanced users can even connect their own Kora instead of the default one.

One balance, no fuel to manage

That's the whole point. You hold USDC. You send USDC. Solana's usual "keep some SOL around" rule simply doesn't apply to you anymore.

See how this fits with the rest of Sigma9 → Gasless overview

Frequently asked questions

Do I need SOL to send USDC on Solana?

No. Sigma9 covers the network fee for you, and you're charged in USDC instead.

What's Kora?

Kora is the open-source helper Sigma9 uses to pay the Solana network fee on your behalf. You never deal with it directly — it just works in the background.

What does it cost?

A small fee, shown to you before you confirm, taken from the same USDC you're sending. Nothing hidden, nothing in a separate coin.

Sigma9 — gasless USDC only. Keys stay on your device.