
Mailchimp
8.3#1 in email marketing softwareFrom $13 a monthFree planAndroidiOSWebAPI
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| Fact | Mailchimp | Prelude Transactional SMS API |
|---|---|---|
| API | Mailchimp exposes open Marketing and Transactional APIs authenticated with OAuth or API keys. | The API uses REST and supports single or bulk message sending through POST requests. |
| Founded | 2001 | 2022 |
| Security | Mailchimp says its SOC 2 reports cover security, availability and processing integrity, and it maintains ISO 27001 certification and a VPAT. | Prelude states that communications use HTTPS/TLS encryption and token-based API authentication, with hosting in U.S. and EU data centers. |
Mailchimp suits people who need email campaigns alongside automation, segmentation, landing pages, or A/B testing. Its free plan may fit smaller contact lists and modest monthly sending needs.
You want what its maker publishes above — check its page for the details.