Formcrest docs

How it works

You bring the HTML. Your form POSTs to a Formcrest endpoint. We run spam checks, store the submission, and deliver it to the destination email addresses you've verified — then redirect the visitor (or return JSON for AJAX submissions).

Three steps to a working form

1. Verify a destination email. In the dashboard, add the address that should receive submissions and click the confirmation link.
2. Create a form. Give it a name; you'll get a unique endpoint URL like https://api.formcrest.com/v1/submit/<formId>.
3. Point your HTML form at it. Set the action to your endpoint and add the hidden honeypot field:

<form action="https://api.formcrest.com/v1/submit/abc123" method="POST">
  <input type="email" name="email" required />
  <textarea name="message" required></textarea>
  <input type="text" name="_honey" style="display:none" tabindex="-1" autocomplete="off" />
  <button type="submit">Send</button>
</form>

On success the visitor is redirected to your form's success URL (or our default thank-you page). If the request sends Accept: application/json, you get a JSON response instead — see JavaScript (fetch).

Pick your setup

• Plain HTML — the simplest path, no JavaScript.
• JavaScript (fetch) — AJAX submissions with a JSON response.
• React & Next.js — the @formcrest/sdk package and the useFormSubmit hook.

Next steps

• Configure your form — redirects, domain whitelist, multiple recipients.
• Spam protection — the honeypot and Cloudflare Turnstile.
• Submit API reference and error codes.