> ## Documentation Index
> Fetch the complete documentation index at: https://docs.binibit.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Network Parameters

> chainId, RPC, explorer, native currency settings for connecting to BiniChain.

## Connection details

| Parameter           | Value                                                |
| ------------------- | ---------------------------------------------------- |
| **Chain name**      | BiniChain                                            |
| **Chain ID**        | (pending mainnet)                                    |
| **RPC URL**         | [https://rpc.binibit.com](https://rpc.binibit.com)   |
| **WebSocket URL**   | wss\://rpc.binibit.com (when published)              |
| **Block explorer**  | [https://scan.binibit.com](https://scan.binibit.com) |
| **Native currency** | BINI                                                 |
| **Decimals**        | 18                                                   |

## Add to MetaMask

```javascript theme={null}
await window.ethereum.request({
  method: "wallet_addEthereumChain",
  params: [{
    chainId: "0x...",                        // hex of chainId
    chainName: "BiniChain",
    nativeCurrency: {
      name: "BINI",
      symbol: "BINI",
      decimals: 18,
    },
    rpcUrls: ["https://rpc.binibit.com"],
    blockExplorerUrls: ["https://scan.binibit.com"],
  }]
});
```

Once finalized, the chain will be addable via [chainlist.org](https://chainlist.org) (community list) for easy click-to-add.

## ethers.js

```javascript theme={null}
import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider("https://rpc.binibit.com");
const network = await provider.getNetwork();
console.log("Connected to:", network.name, "chainId:", network.chainId);
```

## viem

```javascript theme={null}
import { createPublicClient, http } from "viem";

const biniChain = {
  id: /* chainId */,
  name: "BiniChain",
  nativeCurrency: { name: "BINI", symbol: "BINI", decimals: 18 },
  rpcUrls: { default: { http: ["https://rpc.binibit.com"] } },
  blockExplorers: { default: { name: "Binibit Scan", url: "https://scan.binibit.com" } },
};

const client = createPublicClient({
  chain: biniChain,
  transport: http(),
});
```

## Hardhat config

```javascript theme={null}
// hardhat.config.js
module.exports = {
  networks: {
    binichain: {
      url: "https://rpc.binibit.com",
      chainId: /* chainId */,
      accounts: [process.env.PRIVATE_KEY],
    },
  },
};
```

## Foundry config

```toml theme={null}
# foundry.toml
[rpc_endpoints]
binichain = "https://rpc.binibit.com"

[etherscan]
binichain = { key = "...", url = "https://scan.binibit.com/api" }
```

## Sandbox / testnet

During the sandbox phase, contracts have been deployed on **Base Sepolia** (chainId 84532) for development and testing. See [BaiDEX → Contracts](/baidex/contracts) for testnet addresses.

The BiniChain mainnet RPC and chainId values will be published as part of the v2.x rollout.

## Related

<CardGroup cols={2}>
  <Card title="Architecture" icon="layer-group" href="/binichain/architecture">
    Underlying chain design
  </Card>

  <Card title="RPC" icon="terminal" href="/binichain/rpc">
    Endpoint usage and limits
  </Card>

  <Card title="Block explorer" icon="magnifying-glass" href="/binichain/explorer">
    scan.binibit.com
  </Card>

  <Card title="Native BINI" icon="coins" href="/binichain/native-bini">
    Gas token
  </Card>
</CardGroup>