freeapis

Atomic Mail

Email for AI agents: programmatic inbox creation and send/receive over JMAP

Authentication
API Key
HTTPS
Yes
CORS
Unknown
Category
Email
Data source
public-apis

Overview

Atomic Mail provides programmatic email — key-based.

⚠️ Status (verified 2026-08): the API host was unreachable from our network (connection failures). Verify from your network before relying on it.

What it provides

curl "https://api.atomicmail.app/v1/inboxes?key=YOUR_KEY"

Notes

  • Inbox creation/JMAP.
  • Key-based auth.

FAQ

Is Atomic Mail free? Key-based with a free tier per the docs.

Why can’t I reach it? Our 2026-08 check hit connection failures — verify from your network.

What does it return? Email data.

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