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Head to head

Email Inbox API + Sending by Sendmux vs Usero

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

Email Inbox API + Sending by Sendmuxio.github.Sendmux/sendmux-mcp
A
No reviews yet

AI email inbox and sending tools with attachments, search, live events, and webhooks.

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Useroio.usero/usero
B
No reviews yet

Read your Usero feedback inbox and clusters, file feedback, build forms, and open an AI PR.

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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 Email Inbox API + Sending by Sendmux (96/100 against 81). Email Inbox API + Sending by Sendmux has noticeably more public adoption.

 Email Inbox API + Sending by SendmuxUsero
User ratingNo reviews yetNo reviews yet
Safety gradeA96/100B81/100
AdoptionEstablishedGrowing
GitHub stars650
Downloads / week327–
Runs whereHosted (remote)Hosted (remote)
Gateway-readyYesYes
Tools—2
Write actions——
Price per callFreeFree
LicenceMITMIT
Last release2026-09-192026-09-19
CategoryEmailEmail

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