As mentioned, the swap itself cannot happen "instantly," since a certain number of confirmations must be waited for, and this takes varying amounts of time depending on the blockchain in question. Of course, confirmations are essential; doing without them would leave the exchange wide open to attacks.
Even when you go to a physical fiat exchange, you cannot do an instant swap, it takes a few minutes at best. With instant exchanges, waiting for transaction confirmation makes the whole process take longer than "instant."
btw. b1ack, after how many confirmations is the swap process activated on the Ethereum network? (If there are differences in the number of required confirmations depending on the network, maybe you should write about it somewhere in the ToS)
We can't reveal our exact confirmation requirements, as this information could be used for targeted attacks.
What we can say: confirmation requirements are dynamic based on transaction value. Small amounts require fewer confirmations and process faster. Larger amounts require more confirmations for security.
Example: A $50 swap might process after 1-2 confirmations, while a $5,000 swap needs more confirmations to ensure security.
---
...We cannot make Bitcoin confirm faster. Nobody can. What we can do is execute the moment confirmations are received, and that's exactly what we do...
The speed of the exchange will depend on what commission the client and the exchange use when sending the transaction to the mempool. And if the client uses a low commission, it may take several hours to complete such a transaction. So the speed of the exchange depends not only on the exchange, but also on the client. And what kind of commission does the b1exch set to increase priority, and is it permanent?
You're absolutely right - swap speed depends on both sides.
Your incoming transaction:If you send with low fees, it takes longer to confirm. We can't speed this up - we're waiting for blockchain confirmations.
Example: You send BTC with 1 sat/vB during high congestion → might take hours for first confirmation. Nothing we can do except wait.
Our outgoing transaction:We monitor current mempool conditions and use appropriate fees to ensure your payout confirms within reasonable time (usually 20-40 minutes for Bitcoin).
We don't use a fixed fee rate - we adjust based on current network conditions. When mempool is congested, we increase fees. When it's clear, we use lower fees.
Bottom line: For fastest swaps, use higher fees when sending to us. We'll handle fast payouts on our end.
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Instant exchanges doesn't swap your coins instantly because that's not possible however
That is exactly what I was asking about. I often exchange bitcoins for fiat money on P2P platforms, and many people who run exchanges there follow a simple rule: as soon as they see that the fiat payment has been credited to their account, they immediately release the bitcoins. Quite often this process is even automated - a bot monitors bank notifications and instantly releases bitcoins once the notification about the incoming fiat payment is received.
Because of my experience with fiat exchanges, I find it quite surprising that in the crypto-to-crypto swaps an exchange is called "instant" even when the counter-transaction is not sent at the moment the user's transaction is received, but only after some delay (
b1ack mentions up to 60 seconds for most pairs). What is the difference here compared to crypto-to-fiat exchanges? Why is instant sending possible there, but not possible here? What exactly requires this time - up to 60 seconds - in crypto-to-crypto swaps? If everything is automated, why isn't the algorithm configured to send the counter cryptocurrency at the exact moment it receives a notification that the client's transaction has arrived?
Good question - there's a key difference between fiat P2P and crypto-to-crypto exchanges.
Fiat P2P (why it can be "instant"):Bank transfer is irreversible once confirmed. The seller checks their bank account, sees the money, releases Bitcoin. Done. The fiat can't be clawed back (usually).
Crypto-to-crypto (why we need delays):We need to perform several security checks before sending your payout:
Blockchain confirmation verification - Is the transaction actually confirmed, or just broadcast?
Double-spend checks - Multiple node verification to ensure transaction is valid across our redundant nodes
RPC sanity checks - Cross-checking multiple nodes to prevent node attack/manipulation
Fiat value calculation - Fetching real-time rates from multiple sources to determine accurate payout amount
Liquidity checks - Ensuring we have sufficient reserves for payout
Security validations - Making sure nothing suspicious about the transaction
[/list]
These checks take 30-60 seconds typically.
Why we use multiple nodes:Node attacks aren't uncommon. A malicious actor could spin up a fake node and feed us false information (like fake confirmations). By checking multiple independent nodes, we protect against this.
Example: If 1 node says "confirmed" but 2 other nodes say "unconfirmed," we know something's wrong and don't process the swap.
Why we use multiple fiat sources:Prevents manipulation. If we used one price source and it gets compromised or shows wrong rates, you could get incorrect payout amounts.
The 60-second delay protects both you and us.---
- Bitcoin (BTC) — Going Live Today

b1ack is there indeed a slowdown regarding this, you said that BTC will be relaunched on the 15th yesterday. however, as of the 16th, BTC is still unavailable. You haven't given an update on this either? Approximately when will everything be back to normal, I would like to try to make another transaction, I hope I find what you said, "Increased Swap Speed"
-snip-
And what kind of commission does the b1exch set to increase priority, and is it permanent?
I don't think it's permanent. Apart from blockchain fees, there are swap priority fees that are happening you just need to set this section.

We've been working on internal testing before pushing it live. Happy to announce -
it's live now!Quick clarification: That's not "swap priority fees" - it's
rate protection.How rate protection works:When you're doing a swap and coin exchange rates move against you, rate protection prevents you from taking a loss.
Example:
- You start a BTC → ETH swap
- Quote: You'll get 10 ETH
- Rate protection: 3%
- During processing, ETH price drops
- You'd now only get 9.5 ETH (>3% loss)
-
Swap automatically cancels- You get refunded instead of eating the loss
It's a safety feature to protect you from unfavorable rate movements during the swap process.
---
I'm also waiting for BTC to go live to try and make a swap, let's just keep being patient in the meantime. They did say it was a
critical update though, so maybe it's taking a lot more time than they initially expected. Anyway, I'm sure they will post another update when it's ready.

I'm also eagerly looking forward to the ETH-BTC pair going back online. I've got a handful of ETH just waiting to finally be converted

Joking aside, b1ack did mention that this is a critical system update. Updates like this can not only take longer than expected—unplanned delays—but also require extensive testing. In this case, it's actually better to be offline for an extra day or two so they can use that time to thoroughly test the software. But in any case, I'm already very excited about the new pairs; I think the integration of additional stablecoins is a great idea.
Thank you for understanding.
Our next coin additions will be focused on Ethereum and ERC-20 tokens. We're building the infrastructure to support more ERC-20 stablecoins and tokens.
We're taking time to do this right - extensive testing before launch to ensure security and reliability.
Major Update: New Fee Structure
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We're excited to announce a major change to our fee structure based on your feedback and reviews.
New Fee Structure (Effective Immediately):[th]Swap Type[/th] [th]Fee[/th]
|
| All pairs (excluding XMR) | 1% flat |
| Any → XMR | 3% flat |
| XMR → Any | 1% flat |
---
Additional Change: No Slippage FeesWe've eliminated slippage fees entirely. You no longer need to pay extra processing fees.
What this means:Cleaner, simpler pricing
What you see is what you pay
No surprise fees
More predictable costs
Better value for users
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Examples:BTC → ETH swap:• Fee: 1% flat
• No slippage charges
• Network fees still apply
BTC → XMR swap:• Fee: 3% flat
• No slippage charges
• Network fees still apply
XMR → BTC swap:• Fee: 1% flat
• No slippage charges
• Network fees still apply
---
Why We Made This Change:Community feedback - you wanted simpler, clearer pricing
More competitive fees
Better user experience
Transparent costs from the start
---
What Hasn't Changed:No KYC, ever
No logs
No JavaScript
Own liquidity
Fast swaps
Rate protection feature
All security measures
---
Thank YouWe listened to your feedback and worked hard to implement these changes. Thank you to everyone who provided reviews and suggestions.
We're constantly improving based on community input.
- b1eXch Team---