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Foundry

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.
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22 current maintainers21 active leads6 new active leads

Maintainer signals as of Aug 10, 2026


Description

Foundry is a development toolkit for Ethereum applications. It offers several tools to streamline the development process. Key features include Fork Testing, which allows testing contracts against real-world chain state, and ultra-fast compilation that drastically reduces compilation times using dynamic_test_linking. It also includes a performant local node called Anvil for instant setup of development environments, and Cast, a command-line tool for interacting with any chain. The toolkit is composed of several main components: - **Forge**: Helps build, test, debug, deploy, and verify smart contracts. - **Anvil**: A local development node that complies with the Ethereum JSON-RPC specification. - **Cast**: A command-line interface for interacting with on-chain applications.

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