# bot.mailbox/mailbox

> Use this tool when you need to send physical mail programmatically, solving problems such as automated customer correspondence, official document delivery, and personalized marketing outreach. It takes digital inputs, such as letter content and recipient addresses, and produces physical mail outputs, like letters, certified mail, and postcards. Ideal for use cases requiring tangible communication, such as legal notices, invitations, or greeting cards.

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

## Description

Physical mail API for AI agents. Send letters, certified mail, postcards from code via MCP.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-13

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/bot.mailbox%2Fmailbox)

## Use it

MCP endpoint published by the skill: `https://mailbox.bot/api/mcp`

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": "bot-mailbox-mailbox"
    }
  }
}
```

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