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Solady

Solady is a public MIT-licensed Solidity library containing gas-optimized snippets, reusable smart-contract components and contract implementations for Ethereum-compatible development.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Solady — OpenViST project profile in Smart Contracts.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Solady during Solidity development when a project needs reusable contracts or low-level utilities and the developer is prepared to review the implementation and test it in the surrounding codebase.

Who it is for

  • Solidity developers building Ethereum-compatible smart contracts.
  • Teams using Foundry or Hardhat projects.
  • Developers seeking reusable token, authorization, account, proxy and low-level utility components.

Documented uses

  • Add optimized Solidity libraries to a Foundry or Hardhat project.
  • Build ERC-20, ERC-721 or ERC-1155 token contracts.
  • Reuse components for accounts, authorization, proxies, signatures, storage and cryptographic verification.
  • Explore gas-conscious implementations of common smart-contract functionality.
Before you choose

Requirements & limits

The repository is public and the project is licensed under MIT. The README documents installation through Foundry and Hardhat.

  • The library covers both common token standards and lower-level utilities, so developers can select individual components for a broader contract system.
  • Its stated emphasis is gas optimization, including inline-assembly-oriented Solidity work.
  • The repository contains tests, audit reports and documentation links, but the project still describes itself as experimental.
  • The README warns that integrations may exhibit unexpected behavior and may break with future Solidity versions; project-specific testing is required.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Add Solady to a Foundry or Hardhat project

Install the Solady library using one of the documented project workflows.

Before you start

  • A Foundry or Hardhat project.
  • A development environment able to use the documented Foundry or Hardhat installation command.

Steps

  1. For Foundry, run forge install vectorized/solady.

  2. For Hardhat, run the command below.

    Documented command
    npm install solady

  3. Use the Solidity contracts located in the repository's src directory and consult the linked documentation.

Expected outcome

Solady is added to the project through the selected documented package workflow, ready for the developer to evaluate and integrate.

Guide limitations

  • The README documents installation but does not establish that a particular contract is suitable for a specific application.
  • The project describes the software as experimental and recommends thorough tests with the integrating code.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
1 October 2026
Original website title
Vectorized/solady · Official homepage title · retained in its source language
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