Form API for HTML forms

Quick start

1. Create a free Formclick account and a form to get its access key.
2. Send submissions to https://api.formclick.io/submit with the key in an access_key field.
3. Submit once to test. The submission appears in your inbox and dashboard.

<form action="https://api.formclick.io/submit" method="POST">
  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
  <input type="text" name="name" required>
  <input type="email" name="email" required>
  <textarea name="message" required></textarea>
  <button type="submit">Send</button>
</form>

const res = await fetch('https://api.formclick.io/submit', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
  body: JSON.stringify({
    access_key: 'YOUR_ACCESS_KEY',
    name: 'Ada Lovelace',
    email: 'ada@example.com',
    message: 'Hello from my site',
  }),
});
const result = await res.json(); // { success: true, message: "…" }

curl -X POST https://api.formclick.io/submit \
  -H "Content-Type: application/json" \
  -d '{"access_key":"YOUR_ACCESS_KEY","email":"ada@example.com","message":"Hi"}'

More working examples (contact form, file upload, no-JavaScript and fetch) are open source in the formclick/html-form-examples repository on GitHub.

Request

Special fields

Response

{
  "success": true,
  "message": "Thank you! Your message has been received."
}

{
  "success": false,
  "error": "Form not found",
  "message": "Form not found"
}

Limits and spam protection

• Request body up to 100 KB. Files are uploaded separately by the Formclick script, up to 5 MB each.
• Each visitor can submit a form up to 5 times in 10 minutes; an identical submission within 2 minutes is ignored.
• Every plan filters spam and supports honeypot fields. Suspected spam is kept in a separate Spam tab and never triggers emails or integrations.
• Monthly submission limits depend on your plan (below).

What happens after a submission

• Email: an instant notification with every field, and optional autoresponders to the sender.
• Dashboard: search, review and export every submission.
• Databases: save each response as a record in your own tables. See Formclick Databases.
• Integrations: Google Sheets, Notion, Airtable, monday.com, Neon, Supabase, PostgreSQL, MySQL, SQL Server, MongoDB, Brevo, MailerLite, ActiveCampaign, SMTP Email, Discord, n8n, Webhook, HubSpot. See all integrations.

Pricing

Every plan has unlimited forms. See pricing for every feature.

FAQ

Full reference