WordPress gives you full control over HTML forms, which makes Formbase straightforward to integrate. You can use a Custom HTML block or a form plugin that allows custom action URLs.
The simplest approach is to embed a plain HTML form.
Create a Formbase endpoint
Create a new form in the Formbase dashboard and copy the endpoint URL.
Add a Custom HTML block
In the block editor, add a Custom HTML block and paste your form markup.
Set the action URL
<form action="https://formbase.dev/s/YOUR_FORM_ID" method="POST">
<label>Name</label>
<input name="name" type="text" required />
<label>Email</label>
<input name="email" type="email" required />
<button type="submit">Send</button>
</form>
Publish the page and submit a test entry.
If you use a form plugin, look for an option to set the form action or webhook URL. Point it to your Formbase endpoint.