# Reth

*The Rust EVM execution client Tempo runs on.*

Reth is Paradigm's production-ready Ethereum execution-layer client and modular SDK, written in Rust and stable since its 1.0 release in June 2024. Within the Tempo ecosystem it is the foundation Tempo's EVM-compatible execution layer is built on, handling transaction execution and state management.

## At a glance

- **Type:** protocol component
- **Category:** protocol-core
- **Status:** mainnet
- **Website:** https://reth.rs

## Key facts

- **Developer:** Built by Paradigm. _(confidence 96%)_
- **Repository:** Open-source at paradigmxyz/reth on GitHub. _(confidence 100%)_
- **Implementation language:** Written in Rust. _(confidence 100%)_
- **What it is:** A production-ready Ethereum execution-layer client and modular blockchain SDK/node. _(confidence 98%)_
- **Maturity:** Production-ready; reached a stable 1.0 release in June 2024. _(confidence 60%)_
- **EVM compatibility:** Tempo is EVM-compatible, with that compatibility provided through its Reth-based execution layer. _(confidence 97%)_

## Related entities

- [Tempo](https://tempo.dataos.so/entity/tempo) — integrates

## Sources

1. [https://github.com/paradigmxyz/reth](https://github.com/paradigmxyz/reth)
2. [https://reth.rs](https://reth.rs)
3. [https://www.paradigm.xyz/2024/06/reth-v1](https://www.paradigm.xyz/2024/06/reth-v1)
4. [https://tempo.xyz/blog/introducing-tempo](https://tempo.xyz/blog/introducing-tempo)

---

Last reviewed: 7 Jun 2025  
Canonical: https://tempo.dataos.so/entity/reth  
Source: tempowiki (https://tempo.dataos.so) — an independent, sourced reference for the Tempo ecosystem. Not affiliated with Tempo, Stripe, or Paradigm.