npm buidler

# buidler-etherscan

Buidler plugin for integration with Etherscan's contract verification service.

# What

This plugin verifies your contracts on Etherscan.

# Installation

npm install --save-dev @nomiclabs/buidler-etherscan

And add the following statement to your buidler.config.js:


# Tasks

This plugin provides the verify-contract task, which allows you to verify contracts through Etherscan's service.

# Environment extensions

This plugin does not extend the environment.

# Usage

You need to add the following Etherscan config to your buidler.config.js file:

module.exports = {
  etherscan: {
    // The url for the Etherscan API you want to use.
    // For example, here we're using the one for the Ropsten test network
    url: "",
    // Your API key for Etherscan
    // Obtain one at

Lastly, run the verify-contract task like so:

npx buidler verify-contract --contract-name MyContract --address DEPLOYED_CONTRACT_ADDRESS "Constructor argument 1"

# TypeScript support

You need to add this to your tsconfig.json's files array: "node_modules/@nomiclabs/buidler-etherscan/src/type-extensions.d.ts"