Laying out the streets…STEP 1 OF 3

Helo · House #28,412

An independent email API from former Postmark folks

In the Building and consuming APIs neighborhood (Developer). In town since 1 Oct 2026.

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What Tablif read on Helo's site

Helo describes itself as: “Fast, reliable, and affordable email API + SMTP | Helo”

What it is

Calls itself “email API”.

  • Calls itself: email API
“Helo is an email API built for developers and platforms that send on behalf of their customers.”

What it costs

Monthly subscription. A free tier up to a usage limit. No yearly plan. Prices quoted: $0.00035 per email, $5/mo.

  • Monthly: yes
  • Yearly: no
  • Free plan: free up to a limit
  • Price: $0.00035 per email · $5/mo
“$0.00035 per email”
“$5 /mo”

Who it sells to

Sells to developers. Made for developer.

  • Sells to: developers
  • Made for: developer
“Helo is an email API built for developers and platforms that send on behalf of their customers.”

How it runs

A API. Hosted in the cloud. Offers an API. Built with Webflow.

  • Kind: api
  • Runs where: cloud / hosted
  • API: yes
  • Built with: Webflow
“It also covers the fundamentals: REST API and SMTP, SDKs in popular languages”
“Helo is an email API built for developers and platforms”

What it works with

Names Postmark on its pages.

  • Names: Postmark
“Helo is an email API built for developers and platforms”
“An independent email API from former Postmark folks”

What it offers as proof

Live, no waitlist. Trying it asks for an email. Publishes docs and a blog.

  • Instant signup: yes
  • Trial asks for: an email address
“Sign up & start sending”
“Read the docs -> https://docs.helohq.com/”

Sources

Tablif read these pages, last on 1 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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