Brownie

Brownie is a Python-based framework used for the development and testing of EVM smart contracts.

Open-source

Visit website

This link will take you to a third-party site not owned or operated by Alchemy.

What is Brownie?

Brownie is a Python-based testing framework for smart contracts targeting blockchains that operate an Ethereum Virtual Machine. It allows developers to run tests before deploying contracts on EVM-compatible networks. The framework offers full support for the Solidity and Vyper programming languages and features a range of powerful debugging tools, such as tracebacks and custom error strings.

Stream any onchain event for Brownie with Custom Webhooks

Get your API key

Web3 dapps and developer tools related to Brownie

Discover blockchain applications that are frequently used with Brownie.

EVM2

Alchemy CustomerEVM tools

(e=vm'2) evm2 is an evm that runs inside the evm native to Go-Ethereum.

ChainIDE

Web3 IDEs

First and largest cloud-based multichain IDE for developers to create smart contracts and dApps.

Swing

Web3 SDKs

Swing is a cross-chain liquidity routing service for web2 & web3 teams.

Best Development frameworks

Discover more web3 applications and developer tools.

See all dapps

Developer resources from Alchemy

Blog

Announcements

Hello, Modular Account

Modular Account provides enterprise-grade security, best in class cost, and robust account extensibility to developers building on Ethereum L2s.

What is a WebSocket and how does it work

Overview

Technical

What is a WebSocket and how does it work

What They Are and How They Work in Web3

Introducing Rootstock - the Home of Bitcoin DeFi

Blog

Partnership

Introducing Rootstock - the Home of Bitcoin DeFi

Alchemy partners with Rootstock, the Bitcoin sidechain that combines Bitcoin's proof-of-work security with Ethereum-compatible smart contracts for DeFi.