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Email

Send transactional email over HTTPS with official JavaScript, Python and PHP SDKs.

MailChannels API is a free Email API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.

Authentication
apiKey
HTTPS
Yes
CORS
No
Category
Email
Uptime (30 days)
100%
Visit documentation ↗www.mailchannels.com

Online · 2088 msTested Nov 15, 2026 · checked dailyIs it down? Status & uptime

About MailChannels

Give every customer, tenant, and AI agent its own sending identity, rate limits, and suspension path. One compromised sender never takes down your account.

Provider
MailChannels
Website
mailchannels.com ↗

Details from mailchannels.com.

Key facts

  • 100% uptime (30 days)
  • HTTPS
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MailChannels API FAQ

Who provides the MailChannels API?

The MailChannels API is provided by MailChannels (mailchannels.com). Give every customer, tenant, and AI agent its own sending identity, rate limits, and suspension path. One compromised sender never takes down your account.

Is the MailChannels API free?

Yes. The MailChannels API is listed in the Email category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.

Does the MailChannels API require an API key?

Yes. The MailChannels API uses apiKey authentication, so you need to register for credentials before making requests.

Can I call the MailChannels API from the browser?

Not directly. The MailChannels API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.

Does the MailChannels API support HTTPS?

Yes. The MailChannels API is served over HTTPS, so it's safe to use in production.

Maintain the MailChannels API? Add a badge

Show that MailChannels is listed on Public APIs. The badge displays its developer rating once it has one.

MailChannels on Public APIs

Markdown

[![MailChannels on Public APIs](https://publicapis.lol/badge/mailchannels.svg)](https://publicapis.lol/apis/mailchannels)

HTML

<a href="https://publicapis.lol/apis/mailchannels"><img src="https://publicapis.lol/badge/mailchannels.svg" alt="MailChannels on Public APIs" height="20"></a>