> For the complete documentation index, see [llms.txt](https://docs.kardiachain.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kardiachain.io/docs/archived-docs/sdk/web3.md).

# Web3

Beside [KardiaChain RPC method](/docs/archived-docs/rpc/json-rpc-api.md#json-rpc-methods-and-reference) prefixed with `kai_`, we also support every `eth_` prefixed method so every Web3 library that works with Ethereum will also work with KardiaChain. Some popular library:

* Web3JS: <https://web3js.readthedocs.io/>
* EthersJS: <https://docs.ethers.io/>
* Web3 py: <https://web3py.readthedocs.io/>
* Web3 dart: <https://pub.dev/packages/web3dart>

To use web3 library with KardiaChain, simple init with our [public RPC](/docs/archived-docs/rpc/json-rpc-api.md#json-rpc-endpoint) and use the instance. For example in web3js:

```javascript
const Web3 = require("web3");
const web3 = new Web3("https://rpc.kardiachain.io");
```

For more information about the supported `eth_` method, please refer to [this document](https://github.com/kardiachain/go-kardia/wiki/Web3-compatible-JSON-RPC-APIs#web3-compatible-json-rpc-methods).


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