tevm

TypeScript programming with the full power of the Ethereum Virtual Machine

tevm-monorepo

Tevm is an ethereum development toolkit that offers

• Arbitrary EVM execution and forking akin to anvil
• A powerful solidity scripting environment akin to foundry scripts
• Build tooling to create a smooth interface between your Solidity scripts and TypeScript code

Tevm runs in all environments

• All modern browsers
• Node.js >=18
• Bun

Try it out

Try out our online frontend example on stackblitz

Visit Docs for docs, guides, API and more! 📄

Code example

Tevm scripting is a simple yet powerful way to program.

• Write a solidity script HelloWorld.s.sol

// SPDX-License-Identifier: MIT
pragma solidity >0.8.0;

contract HelloWorld {
    function greet(string memory name) public pure returns (string memory) {
        return string(abi.encodePacked("Hello ", name, "!"));
    }
}

• Import the solidity file into a JavaScript or TypeScript file. No need to compile it.

import { HelloWorld } from "./HelloWorld.sol";

console.log(HelloWorld.abi);
console.log(HelloWorld.bytecode);

• Initialize a Tevm memory client and execute your Script using the EthGetTransactionReceiptHandler action

import { HelloWorld } from "./HelloWorld.sol";
import { createMemoryClient } from "tevm";

const client = createMemoryClient();

const result = await tevm.script(HelloWorld.read.greate("World"));

console.log(result.data); // Hello world!

This is just a small subset of what Tevm offers. See docs for more information.

Contributing 💻

Contributions are encouraged, but please open an issue before doing any major changes to make sure your change will be accepted.

See CONTRIBUTING.md for contributing information

License 📄