Form Submission API Architecture

How Form2Lead Works

Understand the request pipeline from frontend HTML submit to verified lead delivery.

Signature Integration Architecture

How Form2Lead Works in 4 Steps

Zero complex backend configuration. Keep your website frontend completely static while receiving verified customer leads.

01Dashboard

Create Form Endpoint

Generate a unique submission endpoint URL in seconds from your Form2Lead dashboard.

02Frontend

Connect Existing Form

Paste your endpoint URL into your HTML action attribute or JavaScript fetch handler.

03Form2Lead API

Automatic Spam Check

Incoming payloads pass through honeypot detection and CORS origin locking automatically.

04Inbox & Resend

Receive Clean Leads

Get structured email alerts via Resend and access submissions in your lead dashboard.

Developer-Native Implementation

Zero SDK Dependencies.
Standard HTML & Fetch.

Form2Lead works natively with any standard HTML5 form, React component, static site generator, or JavaScript fetch call.

  • No client-side JavaScript bundle required for HTML forms
  • Built-in honeypot spam protection using _gotcha
  • JSON response format support for AJAX submissions
<form action="https://submit.form2lead.com/f/abc123xyz" method="POST">
  <label for="name">Name</label>
  <input type="text" id="name" name="name" required />

  <label for="email">Email</label>
  <input type="email" id="email" name="email" required />

  <!-- Hidden Honeypot Field for Spam Protection -->
  <input type="text" name="_gotcha" style="display:none !important" tabindex="-1" autocomplete="off" />

  <button type="submit">Submit Lead</button>
</form>
Direct AnswerGEO / AEO Extractable

What happens when a user submits your website form?

When a visitor clicks Submit, the browser posts form payload data directly to your Form2Lead endpoint. Form2Lead validates the CORS domain origin, checks for honeypot spam fields, stores the lead record, and dispatches instant email alerts via Resend.

Verified product capabilityRead documentation →