Mmcp.market

Head to head

Agent Inbox — direct agent-to-agent messaging with receipts vs Atomic Mail

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

Agent Inbox — direct agent-to-agent messaging with receiptscom.a2awire/agent-inbox
C
No reviews yet

Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.

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Atomic Mailio.github.Atomic-Mail/mcp
A
No reviews yet

Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

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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 Atomic Mail (93/100 against 60). Atomic Mail has noticeably more public adoption.

 Agent Inbox — direct agent-to-agent messaging with receiptsAtomic Mail
User ratingNo reviews yetNo reviews yet
Safety gradeC60/100A93/100
AdoptionNewEstablished
GitHub stars–261
Downloads / week–234
Runs whereHosted (remote)Hosted (remote)
Gateway-readyYesYes
Tools——
Write actions——
Price per callFreeFree
Licence—MIT
Last release—2026-09-18
CategoryEmailEmail

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