About arbengine/mailbox-mcp
arbengine/mailbox-mcp is an MCP server in the Commerce category: physical mail API for AI agents. Send letters, certified mail, postcards, and batch mailings with cost previews, approval controls, tracking, and webhooks.
Install
git clone https://github.com/arbengine/mailbox-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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