hub / github.com/NomicFoundation/hardhat

github.com/NomicFoundation/hardhat @3.9.1 sqlite

repository ↗ · DeepWiki ↗ · release 3.9.1 ↗

5,222 symbols 18,054 edges 1,686 files 481 documented · 9%

README

Hardhat is an Ethereum development environment for professionals. It facilitates performing frequent tasks, such as running tests, automatically checking code for mistakes or interacting with smart contracts.

Built by the Nomic Foundation for the Ethereum community.

💡 This is the README for Hardhat 3, the new major version of Hardhat. For the previous version (v2), see this branch instead.

Getting started

To install Hardhat and initialize a new project, run the following command in an empty directory:

npx hardhat --init

This will take you through an interactive setup process to get started.

Learn more

To learn more about Hardhat, check out the documentation.

Contributing

Contributions are always welcome! Feel free to open any issue or send a pull request.

Go to CONTRIBUTING.md to learn about how to set up Hardhat's development environment.

Extension points exported contracts — how you extend this code

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat-viem/src/type-extensions.ts

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat-ignition-viem/src/type-extensions.ts

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat/src/types/network.ts

EIP1193Provider (Interface)

(no doc) [11 implementers]

packages/ignition-core/src/types/provider.ts

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat-ignition-ethers/src/type-extensions.ts

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat-verify/src/type-extensions.ts

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat-network-helpers/src/type-extensions.ts

NetworkConnection (Interface)

(no doc) [11 implementers]

packages/hardhat-ethers/src/type-extensions.ts

Core symbols most depended-on inside this repo

buildModule

called by 677

packages/ignition-core/src/build-module.ts

contract

called by 631

packages/ignition-core/src/types/module-builder.ts

get

called by 402

packages/hardhat/src/types/config.ts

assertRejectsWithHardhatError

called by 386

packages/hardhat-test-utils/src/hardhat-error.ts

request

called by 341

packages/ignition-core/src/types/provider.ts

getTask

called by 332

packages/hardhat/src/types/tasks.ts

create

called by 326

packages/hardhat/src/types/network.ts

run

called by 311

packages/hardhat/src/types/tasks.ts

Shape

Function 2,315

Method 1,632

Interface 770

Class 468

Enum 37

Languages

TypeScript100%

Modules by API surface

packages/hardhat-ethers/src/internal/hardhat-ethers-provider/hardhat-ethers-provider.ts74 symbols

packages/ignition-core/test/execution/future-processor/helpers/network-interaction-execution.ts53 symbols

packages/hardhat-ignition/src/helpers/pretty-event-handler.ts46 symbols

packages/ignition-core/src/internal/module.ts44 symbols

packages/hardhat-utils/src/fs.ts43 symbols

packages/ignition-core/src/internal/module-builder.ts40 symbols

packages/hardhat-verify/src/internal/etherscan.ts40 symbols

packages/ignition-core/src/types/execution-events.ts37 symbols

packages/hardhat/src/internal/builtin-plugins/solidity/build-system/build-system.ts37 symbols

packages/hardhat-network-helpers/src/types.ts35 symbols

packages/hardhat-keystore/src/internal/keystores/encryption.ts35 symbols

packages/ignition-core/src/internal/execution/jsonrpc-client.ts34 symbols

Dependencies from manifests, versioned

@actions/core1.10.1 · 1×

@changesets/changelog-github0.6.0 · 1×

@changesets/cli2.16.0 · 1×

@eslint-community/eslint-plugin-eslint-comments4.5.0 · 1×

@ethersproject/abi5.8.0 · 1×

@ethersproject/address5.6.1 · 1×

@fontsource/roboto5.0.8 · 1×

@istanbuljs/nyc-config-typescript1.0.2 · 1×

@ledgerhq/errors6.25.0 · 1×

@ledgerhq/evm-tools1.7.7 · 1×

@ledgerhq/hw-app-eth6.45.19 · 1×

@ledgerhq/hw-transport6.31.11 · 1×

For agents

$ claude mcp add hardhat \
  -- python -m otcore.mcp_server <graph>

⬇ download graph artifact