Physical mail API for AI agents. Send letters, certified mail. Sandbox + live keys via MCP.
Use this profile to copy client config, check auth requirements, review tools and resources, and compare related MCP servers before adding it to an AI client.
Get practical integration notes and launch examples for MCP servers like mailbox.
https://mailbox.bot/api/mcpHeaders: Authorization
Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.
{
"mcpServers": {
"bot-mailbox-mailbox": {
"url": "https://mailbox.bot/api/mcp"
}
}
}~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.jsonNo remote HTTP endpoint is advertised. Use the package or stdio setup shown in Install.
Paste an API key, bearer token, or session value from the provider. It is used once to list inventory and discarded after the request.
Bearer token. Use an agent key (sk_agent_...) for autonomous agents, a sandbox key (sk_agent_test_...) for zero-charge testing on production endpoints, or a member key (sk_live_...) for personal use. Mint keys at https://mailbox.bot/mcp-install.
mailbox is an MCP server for Physical mail API for AI agents. Send letters, certified mail. Sandbox + live keys via MCP.. It supports HTTP transport.
Use the generated config in Install. It points your client at the advertised remote endpoint shown on this page.
Choose the Claude Desktop tab in Install, copy the config, and add it to Claude Desktop's MCP server settings. Endpoint: https://mailbox.bot/api/mcp.
Choose the Claude Code tab in Install, copy the config, and add it to Claude Code's MCP server settings. Endpoint: https://mailbox.bot/api/mcp.
Choose the Codex tab in Install, copy the config, and add it to Codex's MCP server settings. Endpoint: https://mailbox.bot/api/mcp.
Choose the Cursor or VS Code tab in Install, copy the config, and add it to Cursor or VS Code's MCP server settings. Endpoint: https://mailbox.bot/api/mcp.
mailbox uses HTTP transport. Endpoint: https://mailbox.bot/api/mcp.
mailbox inventory is listed when the MCP endpoint exposes tools, resources, or prompts. Some servers require auth first.
mailbox is marked with Auth required by registry metadata auth. You may need provider login, an API key, a bearer token, or a session header.