Cheapest Solana Preconfirmations

Preconfs at half the price

Same preconfirmations, 50% less per message and per leader slot.

Preconfirmation prices per message and per leader slot
ServiceTheir priceVice Block
HarmonicTheir price$0.00005 / message or $0.0015 / leader slot
Vice Harmonic
$0.000025 / message or $0.00075 / leader slot50% off
HeliusTheir price$0.00005 / message or $0.0015 / leader slot
Vice Helius
$0.000025 / message or $0.00075 / leader slot50% off
BAMTheir price$0.00005 / message or $0.0015 / leader slot
Vice BAM
$0.000025 / message or $0.00075 / leader slot50% off

Vice Harmonic: billed every covered leader slot while subscribed. Vice Helius & Vice BAM: billed only for slots where you receive a transaction. Each billed slot costs the greater of the per-message or per-slot price. Paid in USDC on Solana. Minimum deposit to activate: $50 USDC. Your deposit is your balance — no fees on top.

Coverage regions

🇩🇪

Frankfurt

FRA

Active
🇳🇱

Amsterdam

AMS

Active
🇺🇸

New York

EWR

Coming soon
🇬🇧

London

LON

Coming soon

How it works

1

Sign in with Google

Your account and wallet are created instantly.

2

Fund your wallet with USDC

Deposit at least $50 USDC (Solana) to your personal Vice Block address to activate your account. Your full deposit stays in your balance.

3

Send transactions

Use your API key and receive preconfirmations.