TL;DR
Mailsnail is a Model Context Protocol (MCP) server. Send USPS letters, postcards & certified mail from any agent. No signup; pay-per-piece via Stripe. Install with: npx -y mailsnail. Source: https://github.com/iancollins27/mailsnail. It speaks the Model Context Protocol and works with any compatible client (Claude, Cursor, Cline, Windsurf, Warp and more).
Mailsnail
Send USPS letters, postcards & certified mail from any agent. No signup; pay-per-piece via Stripe.
Install Command
npx -y mailsnailFrequently Asked Questions
Mailsnail is a Model Context Protocol server that Send USPS letters, postcards & certified mail from any agent. No signup; pay-per-piece via Stripe.
You can install it by running the install command: `npx -y mailsnail`. It then becomes available to any MCP-compatible client such as Claude, Cursor, Cline, Windsurf.
The Mailsnail MCP Server is compatible with any client that speaks the Model Context Protocol — including Claude, Cursor, Cline, Windsurf.
Check the project license on its repository before use.
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Details
- Agent Rank
- 0.0
- License
- Last Updated
- Aug 12, 2026
- Languages
- TypeScript
Client Compatibility
Speaks the Model Context Protocol — works with any compatible client.