# Add Piece Authentication

Sydekyks user and operator guide. Check feature availability and release-specific installation requirements.

### ​Piece Authentication

Sydekyks supports multiple forms of authentication, you can check those forms here (https://docs.sydekyks.com/build-pieces/piece-reference/authentication)

Now, let’s establish authentication for this piece, which necessitates the inclusion of an API Key in the headers.

Modify src/index.ts file to add authentication,

```
import { PieceAuth, createPiece } from '@activepieces/pieces-framework';

export const gelatoAuth = PieceAuth.SecretText({
  displayName: 'API Key',
  required: true,
  description: 'Please use **test-key** as value for API Key',
});

export const gelato = createPiece({
  displayName: 'Gelato',
  logoUrl: 'https://cdn.activepieces.com/pieces/gelato.png',
  auth: gelatoAuth,
  authors: [],
  actions: [],
  triggers: [],
});

```

Use the value test-key as the API key when testing actions or triggers for
Gelato.