# mailbox-mcp

> Use this tool when you need to send and receive physical mail programmatically, enabling automated communication and workflow integration. The mailbox-mcp server allows AI agents to dispatch letters, certified mail, and postcards, and receive scanned inbound mail with features like tracking, approval controls, and webhooks. Ideal for automating business correspondence, document delivery, and mail-based workflows.

Canonical page: https://skillsregistry.net/skills/arbengine-mailbox-mcp  
JSON: https://api.skillsregistry.net/v1/skills/arbengine-mailbox-mcp

## Description

Official mailbox.bot MCP server for AI agents. Send letters, certified mail, postcards, and receive scanned inbound physical mail with sandbox keys, approval controls, tracking, and webhooks.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** verified
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/ewqlqignmw)
- **Repository:** <https://github.com/arbengine/mailbox-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "arbengine-mailbox-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/arbengine-mailbox-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/arbengine-mailbox-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt