Building Mailchimp Integrations for WordPress Since 2015
I’m Renzo Johnson, the developer behind Chimpmatic — the Contact Form 7 to Mailchimp integration plugin trusted by 50,000+ active WordPress installations.
Since 2015, I’ve been focused on one thing: making Mailchimp work seamlessly with WordPress contact forms. What started as a lightweight bridge between Contact Form 7 and the Mailchimp API has grown into a full integration platform handling merge tags, subscriber groups, interest categories, GDPR consent, and automated tagging.
By the Numbers
- 50,000+ active WordPress installations
- 191 plugin reviews on WordPress.org
- 10+ years building Mailchimp API integrations
- Thousands of support tickets resolved on Mailchimp + CF7 issues
Why I Write These Guides
Every guide on chimpmatic.com comes from real support experience. When I see the same API key error in 50 support tickets, I write a guide that fixes it. When Mailchimp changes their UI, I update the screenshots the same week. This isn’t generic content — it’s documentation from someone who works with the Mailchimp API every day.