---
title: "alloy/rpc-types-engine"
description: "Base RPC types for the engine namespace — SSZ, snappy, and sha2 hashing."
source: https://basehub.org/crates/alloy/rpc-types-engine/
---
import { LinkCard } from '@astrojs/starlight/components';

## Overview

The `base-alloy-rpc-types-engine` crate defines RPC types for the `engine` namespace, with SSZ serialization, snappy compression, and sha2 hashing support.

## Source

<LinkCard title="View source on GitHub" href="https://github.com/base/base/tree/main/crates/alloy/rpc-types-engine" />