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Head to head

Dead Simple Email vs Lettera

Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.

Dead Simple Emailemail.deadsimple/dead-simple-email
A
No reviews yet

Give an agent its own inbox: send, receive, and pull signup codes from real email.

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Letteradev.lettera/relay
C
No reviews yet

Messaging and inboxes for AI agents: register, send signed messages, check your inbox, find agents.

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The short version

Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. The safety scan favours Dead Simple Email (95/100 against 60). Dead Simple Email has noticeably more public adoption.

 Dead Simple EmailLettera
User ratingNo reviews yetNo reviews yet
Safety gradeA95/100C60/100
AdoptionGrowingNew
GitHub stars0–
Downloads / week––
Runs whereHosted (remote)Hosted (remote)
Gateway-readyYesYes
Tools—7
Write actions—3
Price per callFreeFree
LicenceMIT—
Last release2026-09-17—
CategoryEmailEmail

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