Build with Mailchimp
Mailchimp’s developer tools provide everything you need to integrate your data with intelligent marketing tools and event-driven transactional email and SMS.

Mailchimp Marketing API
Send marketing campaignsMailchimp’s Marketing API powers timely, relevant marketing campaigns with custom data pulled directly from your app.
Mailchimp Transactional
Send transactional email and SMSMailchimp Transactional (formerly Mandrill) sends targeted and event-driven messages via the API or SMTP, fast—with best-in-class deliverability.
You’ll be in good company
When you build integrations with Mailchimp, you’re creating tools for a trusted and reliable platform that powers marketing, e-commerce, and more for millions of small businesses.
Trusted by fourteen million customers and counting
Rock-solid reliability delivers 1 billion emails daily
Dev teams have launched over 300 Mailchimp integrations so far
Mailchimp Integration Partner Program
A helping hand to scale your Mailchimp Integration
As an Integration Partner, you’ll have access to exclusive benefits, insights, and opportunities to grow your business.
Learn more
$1 Million to the Developer Community
We’ve invested in the developer community with a fund to power the creation of new Mailchimp integrations. Keep an eye on the integrations directory to see what’s new!
Browse IntegrationsOn the Mailchimp side, the fact that the API allows us to send automated emails to catch potential customers that might otherwise be lost is a great feature.
Developing the integration using the Mailchimp API 3.0 was a good experience, documentation is easy to understand and very detailed with proper examples of all requests/responses.
We use the Mailchimp API to simplify our onboarding. We were able to cut down our onboarding by 80% because now a user can just sign in and start listening to music and then we can relate back the music you listen to to your profile.