Mmcp.market

Head to head

Lettera vs three.ws Notifications

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

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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three.ws Notificationsio.github.nirholas/notifications-mcp
B
No reviews yet

Read the inbox, mark items read, manage delivery preferences, and register Web Push devices.

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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 three.ws Notifications (83/100 against 60). Lettera is hosted and callable through the gateway; three.ws Notifications runs on your own machine. three.ws Notifications has noticeably more public adoption.

 Letterathree.ws Notifications
User ratingNo reviews yetNo reviews yet
Safety gradeC60/100B83/100
AdoptionNewEstablished
GitHub stars206
Downloads / week39
Runs whereHosted (remote)Your machine (local)
Gateway-readyYesNo
Tools7
Write actions3
Price per callFreeFree
LicenceApache-2.0
Last release2026-09-22
CategoryEmailEmail

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