No account · No email · Non-custodial · All fees included
In shortTo swap USD Coin (Polygon) (USDC) to Firo (FIRO) without KYC, enter the amount, paste your FIRO address and send your USDC to the one-time deposit address. AltoSwap compares 20+ exchanges for this pair, keeps the no-KYC ones by default and picks one of the best rates for you. No account, email or ID is needed.
Rates come from live exchange quotes and refresh automatically. Page content reviewed by the AltoSwap team on . How we produce and check these pages.
There is no route for USDC to FIRO without an exchange at the moment, so this swap goes through an exchange.
You pay your wallet's own network fee to send USDC on Polygon PoS. The network fee for paying out FIRO on Firo is already included in the rate.
Firo is a privacy coin, which makes USDC to FIRO one of the most common privacy swaps. The exchange receives a public USDC transaction and pays you FIRO; from then on, what you do with that FIRO is shielded by Firo's own protocol rather than by any promise from an intermediary.
Your FIRO is paid on Firo. Use an address that is a transparent address (Spark addresses are not supported).
Type how much USDC you want to swap (minimum about 6.91 USDC). The FIRO you will receive updates live.
A top no-KYC rate is already chosen for you. The form shows what you receive, how long it usually takes and the KYC rating of the route.
Paste the Firo address where you want to be paid. A refund address for your USDC is optional but recommended.
Send the exact amount to the deposit address on Polygon PoS. After it confirms (about 1-3 minutes), the FIRO is sent to your address.
You send
USD Coin (USDC) is a US-dollar stablecoin issued by Circle and backed by cash and short-dated US Treasuries. It circulates on Ethereum, Solana, Base and many other chains.
You receive
Firo (formerly Zcoin) is a privacy cryptocurrency known for its Lelantus and Spark privacy protocols.
Need a different network? USDC (ERC-20) to FIRO · USDC (Solana) to FIRO · USDC (Base) to FIRO · USDC (Arbitrum) to FIRO · USDC (BEP-20) to FIRO
| AltoSwap | KYC exchange | DEX | Single instant exchange | |
|---|---|---|---|---|
| Account needed | No | Yes, with email and password | No, wallet connection | No |
| Identity documents | None; no-KYC exchanges by default | ID and selfie before trading | None | Depends on that one exchange |
| Who holds your coins | You, apart from the minutes of the swap | The exchange, in your balance | You | You, apart from the minutes of the swap |
| Native USDC and FIRO | Yes | Yes | Mostly wrapped or bridged tokens | Yes |
| Rate you get | 20+ exchanges and swap networks, compared live | That exchange's order book | That pool's liquidity | One exchange's quote |
| Time for USDC to FIRO | Minutes | Hours to days, including sign-up | Minutes | Minutes |
| Buy with a bank card | No, crypto to crypto only | Yes | No | Usually no |
Enter the USDC amount on this page, paste your FIRO address and send your USDC to the deposit address shown. AltoSwap has no accounts and asks for no identity documents, and it routes your swap through exchanges rated A for KYC, meaning providers that do not run identity checks. The FIRO is paid directly to your wallet.
The rate moves with the market every few seconds and depends on the amount. The calculator at the top of this page requests live quotes from 20+ exchanges and shows the best current USDC to FIRO rate for the amount you enter.
The minimum is about 6.91 USDC and the maximum about 2,157,973 USDC. Limits vary slightly between exchanges and follow market prices; the form tells you immediately if your amount is outside the range.
Usually 5 to 30 minutes. Most of that is waiting for your USDC deposit to confirm on Polygon PoS, which takes about 1-3 minutes. There is no verification step, so nothing else adds to the wait.
AltoSwap does not know who you are (no account, no email, no identity checks) and the default route uses no-KYC exchanges. Your USDC deposit is a public transaction on Polygon PoS, but once you hold FIRO its transactions hide sender, receiver and amount by design.
Your FIRO is paid on Firo. Use an address that is a transparent address (Spark addresses are not supported). Always use an address in a wallet you control and double-check the first and last characters before sending.
Everything. The exchange's spread, the Firo network fee for the payout and any service commission are already inside the quoted rate, so the amount shown is what you receive: exactly on a fixed rate, approximately on a floating rate. You only pay your own Polygon PoS network fee to send the deposit.
Yes. The reverse direction, FIRO to USDC (Polygon), works the same way and has its own page and live rate on AltoSwap. Each direction is quoted independently, so the two rates are not exact mirrors of each other.
