Purchasing LaserStream
Why is LaserStream better than a dedicated gRPC node?
Why is LaserStream better than a dedicated gRPC node?
LaserStream spans seven regions, auto-fails over with replay, and is a drop-in replacement for Geyser. You get higher throughput and resilience compared to dedicated nodes. For more info, check our comparison.
What are the LaserStream Plus add-ons and how much do they cost?
What are the LaserStream Plus add-ons and how much do they cost?
LaserStream Plus add-ons transform your Professional plan’s pay-per-use model into predictable monthly costs. Available in five tiers: 50TB ($2,500), 100TB ($4,500), 150TB ($6,500), 200TB ($8,500), and 250TB ($10,500) per month. Each tier includes the specified data allowance with no credits consumed, then 2 credits per 0.1 MB for overages—a 33% discount versus the standard rate. View detailed pricing.
What Solana data streaming product offers the lowest latency data streams?
What Solana data streaming product offers the lowest latency data streams?
For the absolute lowest latency, Shred Delivery provides raw, unprocessed shreds directly from the network with the earliest possible access to transaction data. As the top validator by stake, Helius receives shreds before most other network participants.For production applications requiring processed data with commitment guarantees, LaserStream offers the lowest latency among processed streaming solutions. It connects directly to Solana leaders and spans multiple regional endpoints to minimize geographic latency.Learn more about Shred Delivery
Does Helius offer a shred streaming product like Jito's ShreadStream?
Does Helius offer a shred streaming product like Jito's ShreadStream?
Yes! Helius offers Shred Delivery, our premier low-latency shred delivery service that provides the earliest possible access to raw Solana transaction data. Shred Delivery delivers unprocessed shreds directly from the network, offering a significant competitive edge for high-frequency trading and arbitrage strategies.As the top validator by stake, Helius receives shreds faster than validators with less stake and non-staked RPC nodes, ensuring you get the first look at transactions as they occur on-chain.Key differences from LaserStream:
- Shred Delivery: Raw, unprocessed shreds with the absolute lowest latency. Currently in beta with white glove provisioning. Requires custom deshredding logic.
- LaserStream: Processed data with commitment-level guarantees, historical replay, and developer-friendly SDKs for production applications.
What are LaserStream's practical filter limits?
What are LaserStream's practical filter limits?
Up to 10 million account includes per stream, unlimited program filters, and 100 concurrent connections per project.
Using LaserStream
Is LaserStream compatible with Yellowstone clients?
Is LaserStream compatible with Yellowstone clients?
Yes! LaserStream gRPC is designed as a drop-in replacement for Yellowstone gRPC. Simply change your endpoint and API token, and your existing gRPC code will work with LaserStream immediately. LaserStream uses the open-source gRPC protocol.
Where do I find LaserStream bandwidth metrics?
Where do I find LaserStream bandwidth metrics?
You can find LaserStream bandwidth metrics on the LaserStream page in the Helius Dashboard.
Is it possible to get data earlier than the processed commitment level?
Is it possible to get data earlier than the processed commitment level?
No, “processed” is already the fastest commitment level available on Solana (~400ms latency). It represents data processed by a single validator before network confirmation. LaserStream optimizes delivery of processed-level data through direct leader connections and shredstream technology.
Can I subscribe to multiple data types in one LaserStream request (e.g., accounts and transactions)?
Can I subscribe to multiple data types in one LaserStream request (e.g., accounts and transactions)?
Yes, you can subscribe to multiple data types in a single
SubscribeRequest. Add separate filter configs (such as accounts and transactions) to receive both account updates and transaction data in one stream.Order of Messages
Does LaserStream guarantee the order in which messages are sent?
Does LaserStream guarantee the order in which messages are sent?
No, LaserStream does not guarantee message ordering. You may receive transactions and account updates out of order, even within the same slot.
Does LaserStream stream accounts in the order that they're written to?
Does LaserStream stream accounts in the order that they're written to?
No, LaserStream does not stream accounts in the same order that they’re written to. Account updates may arrive in a different sequence than they were written to the ledger.
How do I stream LaserStream transactions in order?
How do I stream LaserStream transactions in order?
You can’t stream transactions in order, but you can reconstruct the order on the client. You can do it like this:
- Buffer messages on the client side
- Extract the
slotandindexfields included in each message - Sort the transactions based on these fields
slot field indicates which slot a transaction belongs to, and the index field indicates its position within that slot. By using both, you can reconstruct the order.Troubleshooting LaserStream
Why is my LaserStream connection experiencing lag or slow performance?
Why is my LaserStream connection experiencing lag or slow performance?
• Client-side bottlenecks: JavaScript clients can lag when overwhelmed. Narrow your filters or switch to a faster language.• Limited local bandwidth: Heavy subscriptions can saturate a slow link. Monitor network usage or upgrade your connection.• Geographic distance: Pick the region-nearest LaserStream endpoint; long routes drop packets and add latency.• Processing logic: Avoid blocking the main thread; use async queues or workers.Benchmark tip:
How do I check my LaserStream connection for errors?
How do I check my LaserStream connection for errors?
Verify your x-token and endpoint, make sure outbound gRPC is allowed. Check your dashboard for connection status and review error logs in your application for authentication or network issues.
Why aren't my LaserStream filters working as expected?
Why aren't my LaserStream filters working as expected?
Confirm public keys and commitment levels, and review your
AND/OR logic. Filters are evaluated as described in the docs.Why does LaserStream send an empty event every 15 seconds?
Why does LaserStream send an empty event every 15 seconds?
These are ping/heartbeat events that maintain connection health and prevent timeouts. They’re part of the gRPC protocol’s connection management. You can safely ignore these events or use them to monitor connection status in your application.