mailbox.bot MCP MCP server

An official MCP server provided by mailbox.bot that enables AI agents to manage physical mail operations. It supports sending outbound letters via USPS and FedEx, processing inbound mail and packages with OCR, managing a physical mailing address (PMB), and handling digital context forwarding. The server includes safety features like dry-run cost previews and approval workflows to prevent unauthorized spending.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by mailbox.bot

MCP endpoint (Streamable HTTP)

https://mailbox.bot/api/mcp

Vendor documentation

What you can do with it

Send physical letters via USPS or FedEx using AI-generated documents
Search and read inbound mail items with OCR text extraction
Manage a physical mailing address and forward digital context
Preview mailing costs and require human approval before sending

Tools advertised by the last live check:

get_mailbox
get_usage
list_inbound_forwarding_addresses
list_inbound_mail
get_inbound_mail
list_postal_threads
get_postal_thread
get_mailbox_md
propose_mailbox_md_edit
send_facility_message
list_facility_conversations
get_facility_messages
update_webhook
send_outbound_mail
list_outbound_mail
get_outbound_mail
cancel_outbound_mail
create_test_outbound_mail
advance_test_outbound_mail
list_agent_inbox
get_agent_inbox_context
get_agent_inbox_sources
list_agent_inbox_scans
get_agent_inbox_scan
get_agent_inbox_activity
report_agent_inbox_outcome
get_agent_inbox_handling
propose_agent_inbox_handling
seed_agent_inbox_sandbox
list_webhook_endpoints
create_webhook_endpoint
update_webhook_endpoint
test_webhook_endpoint
test_webhook_endpoint_with_sample
rotate_webhook_endpoint_secret
list_webhook_deliveries
replay_webhook_delivery
list_inbound_items
get_inbound_item_sources
search_inbound_items
get_inbound_item
get_inbound_pages
quote_inbound_forward
request_inbound_action
get_inbound_activity

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http mailbox-bot-mcp https://mailbox.bot/api/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add mailbox-bot-mcp --url https://mailbox.bot/api/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable mailbox-bot-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "mailbox-bot-mcp": {
      "url": "https://mailbox.bot/api/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "mailbox-bot-mcp": {
      "type": "streamableHttp",
      "url": "https://mailbox.bot/api/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start mailbox-bot-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "mailbox-bot-mcp": {
      "type": "http",
      "url": "https://mailbox.bot/api/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http mailbox-bot-mcp https://mailbox.bot/api/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "mailbox-bot-mcp": {
      "url": "https://mailbox.bot/api/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "mailbox-bot-mcp": {
      "serverUrl": "https://mailbox.bot/api/mcp"
    }
  }
}

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