Show HN: Mu – Tools for Agents
Mu is a new open-source toolset that provides AI agents with direct access to internet services like email, search, and weather via a single MCP endpoint. Unlike API wrappers, Mu functions as a self-hosted server that manages its own infrastructure and capabilities.
Why it matters
It simplifies the integration of AI agents with real-world tools, potentially accelerating the adoption of autonomous digital assistants.
Mu gives an agent the everyday internet as tools: news, web search, mail, markets, weather, video, places, images, files, calendar, contacts. 67 of them, behind one MCP endpoint. Connect once and your agent has all of them, instead of wiring up a server for each.
Real tools, not wrappers. Most things offering an agent tools are a thin layer over somebody else's API. Mu runs the mail server (SMTP with DKIM), the feed aggregator, the search index, the app sandbox and the wallet it hands you. mail_inbox reads a real inbox. db_create writes to real storage. The tools aren't a catalogue of other people's products — they're this instance's own capabilities, exposed.
There is also a web app on the same tools, because the operator is a person too. Use it hosted at micro.mu , or self-host the single Go binary — same product either way. Open source, AGPL-3.0.
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