> For the complete documentation index, see [llms.txt](https://spreadapi.roombelt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://spreadapi.roombelt.com/examples/sign-up-form.md).
# Sign-up form
You can create newsletter sign-up in a few minutes with SpreadAPI. In this tutorial we will create a simple sign-up form with only an email field.
This example shows how to create a simple newsletter sign-up form in just a few minutes using SpreadAPI, allowing users to register their email with a single field.
First, create a Google Sheet like the one below. It's just a single sheet called *emails* with a single column *email*.
Next, follow the [setup instructions](/setup.md) to configure API for your spreadsheet. While configuring authentication add the following line to the script so that everybody can add an entry to the `emails` sheet.
```javascript
User("anonymous", UNSAFE(""), { emails: POST });
```
Now you can now create your site with an HTML form. The code below is a good self-contained starting point, using Bulma CSS and jQuery. I added a nice confirmation message shown after signing up.
```html
Spreadapi Example Sign-up Form
You've been added to the SpreadAPI subscription list!
```
That's it. Now your users can sign up to the newsletter and you will add their emails on Google Sheets!