ViaBTC transaction accelerator: the paid tier, priced and timed

ViaBTC runs the oldest accelerator still standing. It appears in every listicle under four spellings, via btc accelerator, viabtc accelerator, viabtc transaction accelerator and bitcoin accelerator viabtc, and they all mean the same page on viabtc.com. We wrote about the free submissions in September. This guide is about the other button on that page, the one marked Paid Service.

Everything quoted below was read from the live accelerator page on 10 October 2026. The block shares come from the public mining pool statistics for the thirty days before that date, 4,414 blocks in all.

What the page says, line by line

Two counters sit at the top of the page: 813,101 total accelerated transactions, and the free slots remaining in the current hour. The hourly quota has come down. Older write ups, including ours from September, quoted 100 free slots an hour. The page now says 20.

The one line that matters

"Prioritized for inclusion in the next block mined by ViaBTC." That is the whole product, free or paid. ViaBTC does not pass your transaction to other pools. It puts it at the front of its own block template and waits for its own miners to find a block. Everything about the wait follows from how often that happens.

How often ViaBTC finds a block

In the thirty days before this was written the network mined 4,414 blocks. ViaBTC found 9.4 percent of them, which makes it the fourth largest pool behind Foundry USA at 25.5 percent, AntPool at 20.4 percent and F2Pool at 15.7 percent.

Block discovery is memoryless, so the arithmetic is simple. With a 9.4 percent share, the expected number of blocks until ViaBTC finds one is about 10.6, roughly 106 minutes at ten minutes a block. The chances work out like this:

So a paid ViaBTC acceleration is not a next block service. It is a service that will almost certainly get you mined within a working day, probably within two hours, and one time in four within half an hour. That is a reasonable product. It is just not the product the listicles describe when they put ViaBTC at the top of a list headed fastest.

The price you cannot see

This is the part of the page we like least. The free tier shows its rules up front. The paid tier shows an estimate only after you have created a ViaBTC account, signed in and pasted a transaction ID. The help centre says the fee is "calculated based on factors such as transaction volume, current cryptocurrency price, and so on" and gives no rate.

Two consequences follow. First, you cannot compare ViaBTC's price with anything else without handing over an email address and a password. Second, you pay from an account balance, so the normal flow is to deposit BTC, BCH or LTC into ViaBTC first, then spend part of it on the acceleration. The help centre adds that if the balance is insufficient you can pay on chain, which at least avoids a deposit for a single use.

What the shortfall actually is

Whatever ViaBTC quotes, here is the number to hold it against. On the day this was written the next block was clearing down to 0.26 sat/vB and 77.7 percent of the mempool sat in the 0.1 to 0.2 sat/vB band. A typical stuck transaction, 140 virtual bytes at 0.15 sat/vB, needs about 119 extra sats to reach the 1 sat/vB median. That is around ten cents. A fee bump pays exactly that, to the miner, and raises the transaction's real fee rate so that every pool wants it, not one.

No cancellation, no refund

The FAQ on the page is one sentence long on this point: "Since transaction acceleration cannot be canceled once submitted, this service is non-refundable." Read that together with the 9.4 percent share and the no price before sign in rule and the risk profile is clear. You pay an amount you learned a minute ago, for a wait you cannot predict, with no way back if the transaction confirms by itself first or a competing pool mines it before ViaBTC does. Both of those things happen regularly. Four pools out of five that find the next block are not ViaBTC.

Compare that with the policies we collected across the paid market: BitAccelerate publishes a 24 hour refund window with listed exclusions, and the mempool.space accelerator at least shows its price, the pools it reaches and a public record of every acceleration before you pay.

Price comparison, the same transaction everywhere

A search we see in Bing's data asks for a "bitcoin accelerator price comparison 2026 viabtc bitaccelerate mempool.space". Here it is, on the stuck transaction described above, with everything we could verify on 10 October 2026.

The mempool.space quote in that row is a real one, pulled from its public estimate endpoint for a live 0.10 sat/vB transaction the same morning. The full breakdown, including why the cheapest purchasable option is nearly five times the calculated cost, is in our guide to the mempool accelerator.

When ViaBTC paid is the right call

There is a real case, and it is narrower than the marketing suggests.

1. Nobody in the transaction can bump it. An exchange sent it and will not act, and you have no spendable output yet, so neither RBF nor CPFP is available to you.
2. It cannot wait the fourteen days after which nodes drop it and the coins return to the sender.
3. You already hold a ViaBTC balance, so the deposit step costs you nothing extra.
4. A two hour average wait is acceptable. If it has to be the next block, a service that reaches four fifths of hashrate is the better bet.

If the first condition is not true, stop. A bump from your own wallet costs the shortfall and nothing else, reaches every pool at once, and needs no account, no deposit and no refund policy.

Things people get wrong about this page

"ViaBTC accelerates for free"

Only above 10 sats per byte, which is around forty times the current next block rate, and only for 20 transactions an hour across the whole world. A transaction that qualifies for the free tier was never stuck. The free tier guide walks through why the floor locks almost everyone out.

"It pushes to many pools"

No. The page says next block mined by ViaBTC, and nothing else. If you want a service that passes your transaction to many pools, that is a different product with a different name.

"Paid acceleration guarantees the next block"

Nothing can. ViaBTC cannot make its miners find a block faster. It can only promise that when they do, your transaction is in it. One block in roughly ten is theirs.

The bottom line

ViaBTC's paid accelerator is a genuine service run by a genuine pool, which already puts it ahead of most of the category. But it prices in private, pays from a deposit, refunds nothing, and reaches one block in ten. For a transaction you can bump yourself, it is the wrong tool at any price. For the rare transaction nobody can bump, know that you are buying an average two hour wait, not a next block ticket, and compare the quote against a service that reaches most of the network before you deposit.