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SMTPfast

Sends transactional email over a REST API or SMTP bridge and traces each send, bounce, open and webhook event per email.

Free plan · From $9/moActively maintained

Developer toolsFor developersFree tier
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At a glanceswept Oct 14, 2026

≈ 133visits/mo

Little sign of use · estimate, read Oct 14, 2026

For
Developers sending transactional email, such as receipts and password resets, through an API
Price
Free plan · From $9/mopricing page, read Oct 18, 2026Trial & discounts: save 17% yearly
Activity
Actively maintainedrelease 7 days ago · site updated 2 weeks ago
Runs as
API
Used for
  • Send transactional email with one HTTP API call
  • Trace each email from send to delivery and open
  • Read bounce reasons from the receiving server
read off smtpfa.st on Oct 18, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 18, 2026

Free plan · From $9/mo

Trial & discounts save 17% yearly

pricing page

How a program reaches itfound, not claimed · read Oct 18, 2026

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is SMTPfast?

    Sends transactional email over a REST API or SMTP bridge and traces each send, bounce, open and webhook event per email. It is listed in the Atlas under Developer tools.

  • Who is SMTPfast for?

    Developers sending transactional email, such as receipts and password resets, through an API

  • How much does SMTPfast cost?

    SMTPfast has a free plan; paid plans start at $9/mo, per its pricing page on 2026-10-18.

  • Is SMTPfast free?

    Yes, SMTPfast has a free plan, per its pricing page on 2026-10-18.

  • Do people use SMTPfast?

    Little sign of use: ≈ 133 visits/mo · estimate, 2026-10.

  • Is SMTPfast still maintained?

    Actively maintained: release 7 days ago · site updated 2 weeks ago.

  • How do I cancel SMTPfast?

    In its own words (terms of service, 2026-10-18): “You may cancel your subscription at any time from your account settings.”

  • What are alternatives to SMTPfast?

    In Developer tools, by use: Twilio, Cosmic, Appwrite, Unitpost, BlindPay, Signbee.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk