> For the complete documentation index, see [llms.txt](https://timechain.gitbook.io/neucron-javascript-sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://timechain.gitbook.io/neucron-javascript-sdk/wallets-and-assets/paymail.md).

# Paymail

Accessor: `sdk.paymail`

Create and manage human-readable payment aliases.

## Method surface

| Method                               | Purpose              |
| ------------------------------------ | -------------------- |
| `sdk.paymail.createPaymail()`        | createPaymail        |
| `sdk.paymail.paymailList()`          | paymailList          |
| `sdk.paymail.updateDefaultPaymail()` | updateDefaultPaymail |
| `sdk.paymail.deletePaymail()`        | deletePaymail        |

## Basic usage

```typescript
import NeucronSDK from '@timechainlabs/neucron-ts-sdk';

const sdk = new NeucronSDK({ authToken: process.env.NEUCRON_TOKEN });

// Use sdk.paymail methods after authentication.
```

## Notes

* Methods return `Promise<HttpResponse<T>>` unless they are local helpers such as token getters/setters.
* Authenticate with `sdk.auth.login()` or initialize with `authToken` before protected calls.
* Pass `businessId` on business-scoped operations; constructor-level `businessId` is typed but not applied globally.
* Request and response schemas are exported from `@timechainlabs/neucron-ts-sdk` and `@timechainlabs/neucron-ts-sdk/schemas`.