Skip to main content

Documentation Index

Fetch the complete documentation index at: https://doc.spike.ac/docs/llms.txt

Use this file to discover all available pages before exploring further.

​
Why Use Spike with Carrd

Carrd’s Pro plan includes a basic form widget, but it’s limited to a few fields and basic email notifications. Spike gives you:
  • Unlimited submissions on the free plan
  • Spam protection (honeypot, reCAPTCHA, Turnstile)
  • File uploads
  • Webhooks and 21+ integrations
  • Full API access to submissions
  • Custom email templates

​
Setup Steps

1

Create Spike Form

Create a new form in your Spike dashboard and copy the form slug.
2

Add Embed Element

In the Carrd editor, add a Widget / Embed element. Set the type to Code.
3

Paste Form HTML

Paste your Spike form HTML into the embed.
4

Publish

Publish your Carrd site.

​
Example Embed

Paste this into a Carrd embed element: 
<form action="https://api.spike.ac/f/YOUR_FORM_SLUG" method="POST" style="max-width:400px;font-family:inherit;">
  <input type="text" name="_gotcha" style="display:none">

  <input type="text" name="name" placeholder="Your name" required
    style="width:100%;padding:12px;border:1px solid #ddd;border-radius:8px;margin-bottom:12px;font-size:14px;">

  <input type="email" name="email" placeholder="Your email" required
    style="width:100%;padding:12px;border:1px solid #ddd;border-radius:8px;margin-bottom:12px;font-size:14px;">

  <textarea name="message" placeholder="Your message" rows="4" required
    style="width:100%;padding:12px;border:1px solid #ddd;border-radius:8px;margin-bottom:12px;font-size:14px;resize:vertical;"></textarea>

  <button type="submit"
    style="width:100%;padding:12px;background:#000;color:#fff;border:none;border-radius:8px;font-size:14px;cursor:pointer;">
    Send
  </button>
</form>

​
With Custom Redirect

Send users to a thank-you page after submission: 
<form action="https://api.spike.ac/f/YOUR_FORM_SLUG" method="POST" style="max-width:400px;">
  <input type="hidden" name="_next" value="https://yoursite.carrd.co/#thank-you">
  <input type="text" name="_gotcha" style="display:none">

  <input type="email" name="email" placeholder="Your email" required
    style="width:100%;padding:12px;border:1px solid #ddd;border-radius:8px;margin-bottom:12px;">

  <button type="submit"
    style="width:100%;padding:12px;background:#000;color:#fff;border:none;border-radius:8px;cursor:pointer;">
    Subscribe
  </button>
</form>
Carrd embeds support inline styles but not external stylesheets. Keep your styles inline for the best results.