Specie

Payments that settle in seconds, not days.

Accept USDC and have it land in your own wallet — not an account we control, and not on a payout schedule. Built on Arc.

Two ways to pay

Connect a wallet for a single transaction — USDC is Arc’s native gas token, so there is no approval step.

Or send to an address. Every payment gets its own, so a customer can pay from an exchange or a phone with no wallet connection at all.

We never hold your money

Payments forward to your address in the same transaction. On the address path, the destination is baked into the address itself.

Nobody, including us, can redirect a payment. That is a property of the arithmetic, not a promise.

The fee cannot be raised on you

Capped by an immutable 1% ceiling in the contract. Not a setting — a compromised owner key could not exceed it.

Each payment freezes its fee at creation, so a change never applies retroactively.

Built to integrate

A zero-dependency server SDK, an embeddable checkout, signed webhooks, payment links and invoices.

Read the documentation →