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Shreds vs gRPC vs RPC vs WebSockets - Which Is Best for Low-Latency Bots?

A comparison of Solana data streaming methods. Compare when each one sees data, throughput, and cost to find the best architecture for your trading bot.

  • January 22, 2025
  • Infrastructure
  • AllenHark Team
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Building a profitable trading bot on Solana requires the earliest data feed you can get. But with options ranging from standard RPCs to raw Shreds, choosing the right architecture can be confusing. Here is the definitive comparison of Solana data sources.

Latency Hierarchy

MethodProtocolWhen you see the dataBest For
Solana ShredsUDPWhile the block is still being producedHFT, Arbitrage, MEV
Geyser gRPCHTTP/2As the validator processes it, pushed to youCopy Trading, Sniping
WebSocketsTCPAfter the node processes it, as a notificationUI Updates, Basic Bots
Standard RPCHTTP (Polling)Whenever you next askWallets, Analytics

1. Solana Shreds (The Speed King)

Shreds are raw data packets propagated via Solana's Turbine protocol. They are the earliest view of the network — they arrive while the block is still being produced, before RPC confirmation.

  • Pros: The earliest data there is. See transactions before they are confirmed.
  • Cons: Complex to process (requires Reed-Solomon decoding). Expensive.
  • Verdict: Essential for competitive MEV and HFT.

Learn more about AllenHark Shreds

2. Geyser gRPC

gRPC plugins stream account updates and transactions directly from the validator memory. It reaches you ahead of WebSockets because it pushes data as it happens, in binary, without the overhead of JSON parsing.

  • Pros: Early, structured data, easier to use than Shreds.
  • Cons: Arrives after raw Shreds.
  • Verdict: The sweet spot for most serious algorithmic traders.

Explore AllenHark gRPC Services

3. WebSockets (WSS)

Standard Solana PubSub via WebSockets is the traditional way to listen for account changes.

  • Pros: Free/Cheap, supported by all SDKs (@solana/web3.js).
  • Cons: High latency, prone to disconnection, "notification" based rather than real-time stream.
  • Verdict: Good for front-end UIs, bad for HFT.

4. Standard RPC (Polling)

Asking the RPC "what is the balance?" over and over on a timer.

  • Pros: Simple.
  • Cons: Extremely slow. You will always be late.
  • Verdict: Do not use for trading signals.

Summary

If you are building a sniper bot or arbitrage engine, you must use Shreds or gRPC. Relying on standard RPC or WebSockets will leave you competing for scraps.