Email API

SMTPfast

Send transactional email, manage contacts and broadcasts, free 3,000 emails/month

Official docs on smtpfa.st Show on the wall

Docs link reachable when ApiWall checked it on Oct 19, 2026.

Docs link history

Reachable: Oct 18, 2026 – Oct 19, 2026

Catalog facts

Authentication: apiKeyNeeds an API key, usually issued after you create an account with the provider.
HTTPS: YesServed over HTTPS, so traffic to the API is encrypted.
CORS: YesBrowser code on other websites can call it directly.

Access and pricing

ApiWall has not verified pricing, free access or usage terms for this API. A listing here does not mean it is free, available or safe to call. Check the provider's current terms.

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Show a card for SMTPfast on your own site (it links back here):

<div data-apiwall-api="api-smtpfast-0nkhost0t3"></div>
<script src="https://eziodevio.github.io/ApiWall/embed.js" async></script>

As JSON: /api/v1/apis/api-smtpfast-0nkhost0t3.json · Developers

From the public-apis community catalog (MIT), README line 971. ApiWall is independent and not affiliated with this provider.