Mcp_agent_mail
No CVEs96A
Asynchronous coordination layer for AI coding agents: identities, inboxes, searchable threads, and advisory file leases over FastMCP + Git + SQLite
6 toolsremote2.1k19441.9k/wk12h ago
Communication MCP Servers
715 servers in this category
MCPpedia tracks 715 communication MCP servers. 173 of them score at least 50 out of 100, and 80 clear 70 — about 11% of what has been published in this space. The remaining 542 are thinner: registry entries with no description, no published tool schema, or no commit in the last year. They are all still listed here, because knowing a server exists and is unmaintained is worth as much as knowing a good one exists.
Mcp_agent_mail leads the list at 96/100. io.github.Atomic-Mail/mcp (94) and Ms 365 MCP Server (91) follow. Every score is the same five weighted inputs: security (CVE scanning, tool-poisoning detection, and whether the server authenticates at all), maintenance (commit recency, release cadence, and download trend), documentation, client compatibility, and token efficiency — how much of your context window the tool definitions consume before you have asked anything.
5 of these servers are published by the vendor behind the underlying API rather than by a third party, which is usually the difference between an integration that tracks upstream changes and one that quietly stops working. 2 currently carry an open CVE; those are flagged on the server's own page with the advisory and its severity.
Also see: Best Communication MCP servers, Productivity, Developer Tools, Data, Finance
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