# MailSnail Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## MailSnail

Mail physical letters and certified mail through USPS without a trip to the post office

- Record: https://musedirectory.ai/connector/mailsnail
- Category: Productivity
- Developer: Ian Collins (https://mailsnail.dev)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, sign-in needed, 217ms, checked 2026-11-07T04:26:16Z
- Endpoint: https://api.mailsnail.dev/mcp
- Auth: Sign in with your account; Pricing: unknown
- Screening: Screened, no issues found (2026-11-07T04:26:16Z)
- Source: Found in the official MCP Registry (io.github.iancollins27/mailsnail) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.iancollins27%2Fmailsnail

Connects to the mailsnail.dev service to send USPS letters and certified mail. After signing in, Muse can turn a document or note into a mailed letter, so you can post notices, contracts or paperwork without visiting a post office.

Example request: "Send this signed contract to my client by certified mail."

How to connect: MailSnail is not in Muse's Connectors list yet, and it needs you to sign in with your MailSnail account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.

Screening checks:
- MCP handshake: pass (Requires sign-in (publishes OAuth metadata))
- Domain against threat feeds (Cloudflare security DNS): pass (api.mailsnail.dev, mailsnail.dev not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: n/a (Tools are behind sign-in)
- Inputs asking for passwords, card numbers or seed phrases: n/a (Tools are behind sign-in)
- Domain and redirects: pass (Domain registered 173 days ago)
- AI review of purpose and tool behavior: pass (No concerns)