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Send Form Submissions to Mailchimp — splitforms
Receive Mailchimp audience and transactional events in SplitForms.
Copy a SplitForms webhook URL, paste it into Mailchimp, and capture audience changes or transactional email activity without OAuth, API keys, or a developer app.
Delivery mode: Outbound webhook
Free for 1,000 submissions/month. No credit card required.
How to set up Mailchimp with splitforms
5 steps. The whole flow typically takes a couple of minutes.
In SplitForms, open Dashboard -> Integrations -> Mailchimp and choose the form that should receive Mailchimp events.
Copy the Marketing webhook URL for audience/contact events, or the Transactional webhook URL for Mailchimp Transactional/Mandrill email activity.
For Marketing, open Mailchimp -> Audience -> Settings -> Webhooks, create a new webhook, paste the SplitForms URL, and select the contact events you want.
For Transactional, open Mailchimp Transactional -> Webhooks, add a webhook, paste the SplitForms URL, and choose delivered, open, click, bounce, spam, reject, or unsub events.
Save the webhook and send a test event. Mailchimp events will show up as SplitForms dashboard entries for that form.
example: form markup
<form action="https://splitforms.com/api/submit" method="POST"> <input type="hidden" name="access_key" value="YOUR_SPLITFORMS_KEY" /> <input type="hidden" name="_route" value="mailchimp" /> <input type="email" name="email" placeholder="you@example.com" required /> <textarea name="message" placeholder="Your message" required></textarea> <button type="submit">Send to Mailchimp</button> </form>
The form posts to https://splitforms.com/api/submit. The Mailchimprouting is configured in the splitforms dashboard against the form's access key — there's no client-side Mailchimp-specific code in your HTML.
Want the long-form walkthrough? Read the deep-dive Mailchimp guide on the blog →
Who uses splitforms + Mailchimp
A handful of patterns we've seen in the wild.
- USE CASE 01Keep an audit trail of Mailchimp subscribes, unsubscribes, email changes, and cleaned contacts beside your website form leads.
- USE CASE 02Capture transactional email opens, clicks, bounces, and spam complaints from Mailchimp Transactional.
- USE CASE 03Let a non-technical customer connect Mailchimp by copying one URL instead of creating OAuth apps or sharing API keys.
- USE CASE 04Route Mailchimp audience changes into the same dashboard your team already uses for inbound lead review.
- USE CASE 05Test a Mailchimp integration before investing in a full two-way OAuth sync.
Why splitforms for Mailchimp?
OAuth is smoother but heavier; the SplitForms copy-paste URL gets most users connected in two steps. splitforms is free for 1,000 submissions per month, $5/mo on Pro, or $59 for a 3-year plan (15,000 submissions/month, 36 months of access). No per-integration add-on fees.
Frequently asked questions
Does this require a Mailchimp API key?
No. This setup is inbound-only: Mailchimp sends events to a SplitForms webhook URL. The user copies the URL from SplitForms and pastes it into Mailchimp. No OAuth app, client secret, or Mailchimp API key is needed.
What is the difference between Marketing and Transactional webhooks?
Marketing webhooks are for audience/contact changes such as subscribe, unsubscribe, profile update, email change, and cleaned contacts. Transactional webhooks are for Mailchimp Transactional/Mandrill message events such as delivered, open, click, bounce, spam, reject, and unsub.
Can SplitForms create the Mailchimp webhook automatically?
Not in this simple copy-paste flow. Automatic creation would require OAuth for Marketing and a Transactional API key for Mandrill. The copy-paste flow is intentionally simpler for users who just want to connect in a couple of steps.
Where do the Mailchimp events appear?
They are saved against the selected SplitForms form as dashboard entries with source, product, event type, email, list or message identifiers, and the important event metadata.
Is the webhook URL private?
Yes. Treat the copied URL as a secret because it identifies the SplitForms form. If it leaks, regenerate the form access key or create a fresh form and replace the URL in Mailchimp.
Does this also add SplitForms form submissions to a Mailchimp audience?
No. This page covers Mailchimp -> SplitForms webhooks. Sending SplitForms form submissions into a Mailchimp audience is a separate outbound workflow that usually uses Zapier, Make, or a small API relay.
Connect Mailchimp in 60 seconds.
Free for 1,000 submissions per month. No credit card. Pro is $5/mo. The whole splitforms + Mailchimp setup ships in under five minutes.