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Yellowstone gRPC API

Power your Solana dApps and backends with the fastest, most reliable streaming data available. Yellowstone gRPC add-on is for apps that need every live event as fast as the network can deliver.

Overview

Yellowstone gRPC is a high-performance Solana Geyser plugin that provides real-time streaming access to on-chain data. Built by Triton One, it delivers blocks, transactions, and account updates with millisecond-level latency directly from Solana validators.

GetBlock offers managed Yellowstone gRPC endpoints as an add-on to Dedicated Solana Node subscriptions, eliminating the need for infrastructure setup and maintenance.

Key Features

  • Near-zero latency: Streams data directly from validators, often hundreds of milliseconds faster than standard RPC/WebSocket APIs

  • High throughput: Handles millions of events per minute under load

  • Comprehensive streaming: Monitor accounts, transactions, blocks, slots, and program interactions in real-time

  • Rich filtering: Subscribe only to relevant updates using account keys, owner programs, or commitment levels

  • Protobuf encoding: Receive parsed, typed messages instead of raw base64 data

  • Bidirectional streaming: Maintain long-lived connections with built-in keep-alives

Supported Data Streams

Yellowstone gRPC supports streaming the full range of Solana events:

Stream Type
Description

Accounts

Real-time account updates including lamports, owner, and data

Transactions

Full transaction data with metadata and instruction details

Blocks

Block metadata including slot, parent slot, and timestamp

Slots

Slot notifications as they're processed by the leader

Block Meta

Block metadata with transaction counts and execution status

Use Cases

Yellowstone gRPC is ideal for time-sensitive applications that need to react instantly to on-chain state changes:

  • High-frequency trading and MEV bots

  • On-chain indexers and data archives

  • Real-time analytics dashboards

  • DEX monitors and price feeds

  • DeFi strategy engines

  • Alerting and notification systems

  • NFT marketplace trackers

  • Wallet activity monitors

Note: gRPC is not supported in browsers. Yellowstone is designed for backend services and server-side applications.

Getting Started

Overview

Learn how Yellowstone gRPC works and why it's essential for real-time Solana applications

Quickstart Guide

Enable the add-on and start streaming data with code examples in TypeScript, Python, Go, and Rust

Prerequisites

To use Yellowstone gRPC on GetBlock:

Quick Example

Here's a minimal TypeScript example to start streaming account updates:

import Client, {
  SubscribeRequest,
  CommitmentLevel
} from "@triton-one/yellowstone-grpc";

const client = new Client("https://go.getblock.io/", "YOUR_ACCESS_TOKEN");
const stream = await client.subscribe();

stream.write({
  accounts: ["YourWalletPubkeyHere"],
  commitment: CommitmentLevel.PROCESSED,
} as SubscribeRequest);

stream.on("data", (msg) => {
  if (msg.accountChange) {
    console.log(`Account updated: ${msg.accountChange.pubkey}`);
  }
});

Additional Resources

Need Help?

Our support team is available 24/7 to assist with:

  • Add-on activation and endpoint setup

  • Integration guidance and troubleshooting

  • Performance optimization

  • Custom solutions for enterprise needs

Contact us through the GetBlock dashboard or visit our support page.

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