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yellowstone-grpc

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Real-time Solana transaction and account streaming via Yellowstone gRPC (Geyser plugin)

skills/agiprolabs__claude-trading-skills/skills/yellowstone-grpc/SKILL.md

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# Yellowstone gRPC — Real-Time Solana Streaming

Stream every transaction, account update, slot, and block on Solana in real-time using Yellowstone gRPC. This is the foundation for any latency-sensitive Solana trading system — replacing REST polling with push-based streaming at ~5ms slot latency.

## Why Yellowstone gRPC

| Method | Slot Latency (p90) | Use Case |
|--------|-------------------|----------|
| REST polling (`getTransaction`) | ~150ms+ | Historical lookups |
| WebSocket (`onLogs`) | ~10ms | Simple notifications |
| **Yellowstone gRPC** | **~5ms** | **Production trading systems** |

Yellowstone is a Geyser plugin that exposes Solana validator data over gRPC. Every major RPC provider runs it. You subscribe to filtered streams of transactions, account changes, slots, blocks, and entries — and the data pushes to you.