Getting started
- Sign in with Google.
- Fund your Vice Block wallet with USDC on Solana from the dashboard.
- Use your API key to send transactions and receive preconfirmations.
Connecting
Connect over gRPC to https://fra.viceblock.io (Frankfurt) or https://ams.viceblock.io (Amsterdam) for all three products. Send your Vice Block API key as gRPC metadata:
x-token: <your vb_ API key>
Vice Harmonic uses the same request formats as Triton (Harmonic). Vice Helius and Vice BAM use the same request formats as Helius (Helius/BAM). Full reference coming soon.
Billing
All products share the prices $0.000025 per message and $0.00075 per leader slot, paid in USDC on Solana. Charges are calculated separately for each billed slot, then added together.
- Vice Harmonic: every covered leader slot while subscribed is billed at the greater of messages in that slot × $0.000025 or $0.00075, even when there are no matching transactions.
- Vice Helius & Vice BAM: only slots in which at least one matching transaction was delivered are billed at the greater of messages in that slot × $0.000025 or $0.00075. Slots with no matches are free.
Harmonic example
One hour subscribed in Frankfurt with approximately 2,000 covered slots and zero matches costs approximately 2,000 × $0.00075 = $1.50.
Helius example
30 slots with 5 messages each and zero matches elsewhere costs 30 × max(5 × $0.000025, $0.00075) = $0.0225. All other slots are free.