Dead Letter vs Feishu User Plugin

Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.

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Dead Letter
BigCactusLabs
💬 Communication
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💬 Communication
SummaryConvert .eml email exports to clean Markdown with YAML front matter — thread splitting, signature stripping, attachment extraction, and calendar parsing. Tuned for feeding archived email into RAG/LLM pipelines.All-in-one Feishu/Lark MCP server (84 tools). Send messages as the actual user (not bot), plus full official-API coverage of docs, bitable, wiki, drive, calendar, tasks, OKR. Cookie + OAuth UAT + app-credential auth.
Quality signal24/100 (Emerging)24/100 (Emerging)
Install pathnpx · lownpx · high
Engagement 0 0 0 5 0 0 0 7
ToolsNot listed yetNot listed yet
Verified / officialNoNo
Open listingView Dead LetterView Feishu User Plugin
More alternatives to Dead LetterMore alternatives to Feishu User PluginCommunication category

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