---
title: "mempool-rebroadcaster"
description: "Bidirectional Geth-Reth mempool transaction rebroadcasting service."
source: https://basehub.org/binaries/mempool-rebroadcaster/
---
import { LinkCard } from '@astrojs/starlight/components';

`mempool-rebroadcaster` bridges the Geth and Reth transaction pools, forwarding pending transactions in both directions so the two clients stay in sync.

## Package

- **Crate name:** `mempool-rebroadcaster-bin`
- **Binary name:** `mempool-rebroadcaster`
- **Source:** [`bin/mempool-rebroadcaster`](https://github.com/base/base/tree/main/bin/mempool-rebroadcaster)
- **Library:** [`crates/infra/mempool-rebroadcaster`](https://github.com/base/base/tree/main/crates/infra/mempool-rebroadcaster)

## Architecture

The rebroadcaster connects to both a Geth node and a Reth node, monitoring each transaction pool and forwarding new transactions to the other:

```
Geth txpool ←→ mempool-rebroadcaster ←→ Reth txpool
```

This ensures that during the migration from Geth to Reth, or in hybrid deployments where both clients are running, transactions submitted to either node are visible to both. The service periodically polls both pools and rebroadcasts any transactions that are missing from the other.

## Key Dependencies

- `mempool-rebroadcaster` — Core rebroadcasting logic
- `clap` — CLI argument parsing
- `dotenvy` — Environment variable loading
- `tracing` / `tracing-subscriber` — Structured logging
- `tokio` — Async runtime

## Build

```bash
cargo build --bin mempool-rebroadcaster --release
```

## Usage

```bash
./target/release/mempool-rebroadcaster [OPTIONS]
```

## Source

<LinkCard title="View source on GitHub" href="https://github.com/base/base/tree/main/bin/mempool-rebroadcaster" />