> For the complete documentation index, see [llms.txt](https://circular-protocol.gitbook.io/standard-apis/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://circular-protocol.gitbook.io/standard-apis/api-docs/node.js/mainnet-integration.md).

# Mainnet Integration

For using the Mainnet change the NAG url to `https://circularlabs.io/NAG_Mainnet.php?cep=` with the setNAGURL method.

**ES Module Example**

```javascript
import  CircularProtocolAPI from 'circular-protocol-api';

const circular = CircularProtocolAPI;

circular.setNAGURL("https://nag.circularlabs.io/NAG_Mainnet.php?cep=");
```

**CommonJS Example**

```javascript
const CircularProtocolAPI = require('circular-protocol-api');

const circular = CircularProtocolAPI;

circular.setNAGURL("https://nag.circularlabs.io/NAG_Mainnet.php?cep=");
```