# Console auth.md

Read reviews through the [API or MCP](/developers) without registration or an API key. No Authorization header is needed.

## Optional newsletter signup

With the person's permission, subscribe them to the [free weekly newsletter](https://console.dev/):

```http
POST /subscribe
Content-Type: application/json

{"email":"reader@example.com"}
```

A `200` response with `status: "accepted"` means they should check their inbox and follow the verification email instructions. `409` means already subscribed. Do not repeat either request. If the response is lost, check the inbox before retrying.

On `429`, wait before retrying. See the [API reference](/api/v1/openapi.json) for other errors.

Signup is optional; reviews are available without subscribing.