Observed arrival · 2026-09-20

email.singles: an inbox for AI agents

email.singles Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

An email API that lets agents create inboxes, receive messages as parsed JSON, and send or reply to mail.

Landing page captured for the 2026-09-20 issue.

For: Developers building email-capable AI agents
Worth noticing: The wait endpoint long-polls for up to 50 seconds, avoiding repeated inbox polling.

Field notes

The service exposes inboxes through a REST API, with addresses created by username or generated automatically. Incoming messages can be fetched as text, HTML, parsed codes, links, attachments, or original .eml files, while the wait endpoint supports a timeout of up to 50 seconds. Documented limits include 25 MB per inbox, 50 sends per day, and 100 inboxes per account.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

One card from the complete issue

Mahjongg With Footnotes

304,744 arrived 1,000 judged 993 catalogued Enter the complete issue