Wrappers for 0x smart contract wrappers generated using @0x/abi-gen

Usage no npm install needed!

<script type="module">
  import 0xKlaytnContractWrappers from 'https://cdn.skypack.dev/@0x-klaytn/contract-wrappers';



Wrappers for 0x smart contracts, generated using @0x/abi-gen.



npm install @0x-klaytn/contract-wrappers --save


import { ContractWrappers } from '@0x-klaytn/contract-wrappers';

If your project is in TypeScript, add the following to your tsconfig.json:

"compilerOptions": {
    "typeRoots": ["node_modules/@0x-klaytn/typescript-typings/types", "node_modules/@types"],


We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.

Please read our contribution guidelines before getting started.

Install dependencies

If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:

yarn config set workspaces-experimental true

Then install dependencies

yarn install


To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:

PKG=@0x-klaytn/contract-wrappers yarn build


yarn clean


yarn lint

Run Tests

yarn test


Documentation for this package is generated by TypeDoc, using the Solidity source code for 0x contracts. Each contract corresponds to one global-level module, which contains relevant enums and interfaces for its events and structs. Most significantly, each module exports a class, <ContractName>Contract, e.g. ExchangeContract, which implements helper methods for all the functions defined in the corresponding contract.

A convention to note is that these contract-specific helper methods are defined as object literals, which are separated from methods in the generated documentation. Each contract method has a number of sub-methods, e.g. sendTransactionAsync, or estimateGasAsync, which are documented separately. This is an example of an expected method call signature: exchangeContractInstance.fillOrder.sendTransactionAsync(...arguments).


This package contains generated code. We use the abi-gen utility to generate wrappers from compiler artifacts in @0x/contract-artifacts. To re-generate wrappers, e.g. when @0x/contract-artifacts has been updated, run yarn wrappers:generate && yarn wrappers:prettier.