> This page is for Small Business.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://ntrs.ferndocs.com/small-businesses/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://ntrs.ferndocs.com/small-businesses/_mcp/server.

# Authentication

All API requests require a valid API key passed in the `Authorization` header.

```
Authorization: Bearer YOUR_API_KEY
```

API keys can be generated in the Northern Trust Business Portal. Keep your key secure — do not expose it in client-side code or commit it to version control.

## Example

#### TypeScript

```typescript
import { NorthernTrustClient } from "@northern-trust/small-business";

const client = new NorthernTrustClient({
  apiKey: process.env.NORTHERN_TRUST_API_KEY,
});
```

#### Python

```python
import os
from northern_trust_small_business import NorthernTrustClient

client = NorthernTrustClient(api_key=os.environ["NORTHERN_TRUST_API_KEY"])
```