> For the complete documentation index, see [llms.txt](https://docs.harmony.one/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.harmony.one/home/developers/tools/using-ganache.md).

# Ganache

Install Ganache CLI

```
npm install -g ganache-cli
```

Load Harmony networks (local, testnet, mainnet) to ganache-cli. The command below loads

```
ganache-cli -f http://localhost:9500 --networkId 1666700000
or for testnet
ganache-cli -f https://api.s0.b.hmny.io --networkId 1666700000
or for mainnet
ganache-cli -f https://api.s0.t.hmny.io --networkId 1666600000
```

Use web3.js to interact with the ganache binded harmony network

```
const web3 = new Web3("http://127.0.0.1:8545");
web3.eth.getBlockNumber().then(console.log)
```