You send
Firo FIRO
Firo (formerly Zcoin) is a privacy cryptocurrency known for its Lelantus and Spark privacy protocols.
- Network
- Firo
- Address
- Is a transparent address (Spark addresses are not supported)
FIRO → OP
Swap Firo to Optimism without KYC
In shortTo swap Firo (FIRO) to Optimism (OP) without KYC, enter the amount, paste your OP address and send your FIRO to the one-time deposit address. AltoSwap compares 20+ exchanges for this pair, keeps the no-KYC ones by default and routes your swap to the offer that pays the most OP. No account, email or ID is needed.
- No KYC by default
- No account
- Fixed or floating
- Non-custodial
Rates come from live exchange quotes and refresh automatically. Page content reviewed by the AltoSwap team on . How we produce and check these pages.
FIRO to OP at a glance
Coming from Firo, the exchange only ever sees a FIRO deposit. The history behind those coins is not visible to it. The payout in OP is an ordinary public transaction on OP Mainnet, sent to the address you provide.
Your OP is paid on OP Mainnet. Use an address that starts with 0x and is 42 characters long.
Pair details
- You send
- Firo (FIRO) on Firo
- You receive
- Optimism (OP) on OP Mainnet
- KYC
- None by AltoSwap. Routed through A-rated (no-KYC) exchanges by default
- Account
- Not required. No sign-up, no email
- Minimum amount
- About 5.26 FIRO
- Maximum amount
- About 1,642,281 FIRO
- Rate types
- Floating and fixed
- FIRO deposit confirmation
- About 10-30 minutes
- Memo / tag
- Not used for this pair's payout
- Custody
- Non-custodial: wallet → exchange → your wallet
How to swap FIRO to OP
Four steps, with no account at any of them. Most of the wait is your FIRO deposit confirming on Firo.
- 1
Enter the FIRO amount
Type how much FIRO you want to swap (minimum about 5.26 FIRO). The OP you will receive updates live.
- 2
Pick an offer
The top no-KYC offer is preselected. Open 'All offers' to compare fixed and floating rates, speed and each exchange's KYC rating.
- 3
Add your OP address
Paste the OP Mainnet address where you want to be paid. A refund address for your FIRO is optional but recommended.
- 4
Send FIRO, receive OP
Send the exact amount to the deposit address on Firo. After it confirms (about 10-30 minutes), the OP is sent to your address.
About Firo and Optimism
Check the network and the address format on both sides before you send. A swap can only pay the address it was given.
You receive
Optimism OP
OP is the governance token of Optimism (OP Mainnet), an Ethereum layer-2 rollup and the foundation of the OP Stack.
- Network
- OP Mainnet
- Address
- Starts with 0x and is 42 characters long
Ways to swap FIRO to OP, compared
The same swap can be done four ways. This is how they differ on privacy, custody and price.
| 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 FIRO and OP | Yes | Yes | Mostly wrapped or bridged tokens | Yes |
| Rate you get | Best of 20+ exchanges, compared live | That exchange's order book | That pool's liquidity | One exchange's quote |
| Time for FIRO to OP | Minutes | Hours to days, including sign-up | Minutes | Minutes |
| Buy with a bank card | No, crypto to crypto only | Yes | No | Usually no |
FIRO to OP: questions and answers
How do I swap FIRO to OP without KYC?
Enter the FIRO amount on this page, choose an offer, paste your OP address and send your FIRO to the deposit address shown. AltoSwap has no accounts and asks for no identity documents, and by default it only shows exchanges rated A for KYC, meaning providers that do not run identity checks. The OP is paid directly to your wallet.
What is the FIRO to OP exchange rate?
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 FIRO to OP rate for the amount you enter.
What are the minimum and maximum for FIRO to OP?
The minimum is about 5.26 FIRO and the maximum about 1,642,281 FIRO. Limits vary slightly between exchanges and follow market prices; the form tells you immediately if your amount is outside the range.
How long does a FIRO to OP swap take?
Usually 5 to 30 minutes. Most of that is waiting for your FIRO deposit to confirm on Firo, which takes about 10-30 minutes. There is no verification step, so nothing else adds to the wait.
Is swapping FIRO to OP anonymous?
AltoSwap does not know who you are (no account, no email, no identity checks) and the default route uses no-KYC exchanges. Your FIRO deposit is private by Firo's design; the OP payout is a normal public transaction on OP Mainnet.
Which OP address should I use?
Your OP is paid on OP Mainnet. Use an address that starts with 0x and is 42 characters long. Always use an address in a wallet you control and double-check the first and last characters before sending.
What fees are included in the FIRO to OP rate?
Everything. The exchange's spread, the OP Mainnet 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 Firo network fee to send the deposit.
Can I swap OP back to FIRO?
Yes. The reverse direction, OP to FIRO, 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.
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