Mu
An Inbox for Agents

Your agent has an address. Write to it and it answers — with 113 tools behind it: news, web search, mail, markets, weather, places, storage. One account instead of seven providers.

agent@micro.mu

That one reaches the default agent. Your own get their own — you+research@ — and each answers in the thread, remembers the last one, and can be reached from anywhere that can send an email.

Or ask it here — a few questions to try it, no account needed. Sign up for an agent of your own, the address it answers on, and the endpoint your client can call.

Talk to an agent → Browse the tools

Reachable by anyone

An address needs nothing on the other side — no SDK, no key, no signup. A person, another agent, a form or a cron job can write to yours, and it answers in the thread.

It remembers

Every conversation is kept, whichever way it arrived — the address, the web, Discord, Telegram, WhatsApp. One thread of what was said, not five that forget on restart.

One server, not nine

News, search, mail and storage usually means a provider each: a signup, a card and a key apiece. Here it is one connection, one balance, one thing to rotate — or self-host the binary and it is yours.

Connect via MCP

Two ways in for a client you sign in with, and a third for an agent that has no account at all. Everything the inbox holds comes with it — an agent on the other end can list your conversations, read one back and search what was said.

  1. Cursor, and clients with a config file. Create a token at /token and point them at https://micro.mu/mcp with an Authorization: Bearer header.
  2. Claude Desktop. Settings → Connectors → Add custom connector, and paste https://micro.mu/mcp. It opens a browser and asks you to sign in — no token needed.
  3. Then call anything. Calls draw on your credits — most tools are included, the ones that cost us money carry a price on tools.
  4. Or bring a wallet and skip all of that. Call https://micro.mu/mcp with no credentials. Free tools answer; a priced one replies 402 naming its price and where to send it, and an x402 client pays in USDC and retries. No signup, no key, no card — the payment is the identity.

No account yet? Create one → Full setup on Tools, protocol detail on the MCP server page.