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Campaign Monitor vs Mailchimp

Campaign Monitor: Straightforward email marketing for growing businesses. Mailchimp: Email and SMS marketing minus the learning curve. Same fact set for both, straight from each vendor's docs.

Campaign Monitor

Free tier
Free tier framed as 30-day trial (500 contacts, 500 emails)
Paid from
$12/mo (Lite); subscriber-count based · pricing page
Public API
Yes docs
MCP server
Community · Community MCP servers only
Best for
Straightforward email marketing for growing businesses
Website
https://www.campaignmonitor.com

Mailchimp

Free tier
Free plan, up to 500 contacts (500 sends/mo)
Paid from
$13/mo (Essentials, 500 contacts); scales with contact count · pricing page
Public API
Yes docs
MCP server
Yes · Official MCP for Transactional (Mandrill) in dev docs; Marketing API MCPs are community
Best for
Email and SMS marketing minus the learning curve
Website
https://mailchimp.com

Which one?

Campaign Monitor suits straightforward email marketing for growing businesses. Mailchimp suits email and sms marketing minus the learning curve. Pricing changes; the fact tables above link both vendors' live pricing pages. For the rest of the field, see Campaign Monitor alternatives, Mailchimp alternatives, or the full table.