Submitting a form on a static React site

I’m working on adding a contact form to my portfolio site which is a static react-create-app site with no backend. I tried using Formspree to submit the form but it turns out Formspree only allows AJAX requests if you’re a paid member. Doesn’t look like I can use Formspree for this.

Does anyone know of any similar free services that I could use to submit a form from a static site?

I’d take another look at formspree. I’m using it on my portfolio for free and it works fine.

I get a 400 error every time I try to test it. Don’t think it works with React apps.

I haven’t tried with React but I can’t imagine that formspree would be able to know/care