Install mailbox.bot in Claude Code
claude mcp add --transport http mailbox-bot https://mailbox.bot/api/mcp{
"mcpServers": {
"mailbox-bot": {
"url": "https://mailbox.bot/api/mcp"
}
}
}Frequently asked questions
What does the mailbox.bot MCP server do?
Physical mail API for AI agents: send letters, certified mail, postcards and batch mailings with cost previews, approval controls, tracking and webhooks.
Is the mailbox.bot MCP server free?
The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.
Does mailbox.bot run locally or remotely?
Remote. Hosted by the provider. You connect with a URL, nothing to install.
How do I add mailbox.bot to Claude Code?
Run: claude mcp add --transport http mailbox-bot https://mailbox.bot/api/mcp
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