Postals MCP

Name: Postals MCP
Author: instaclaw

postals-mcp · by instaclaw

Postals — the agent skill that turns any AI into a direct mail machine. One MCP tool call mails a physical handwritten postcard (real pen-and-ink, USPS 3-5 day delivery, $4.99 per card). Works with Claude Desktop, Cursor, Claude Code, OpenClaw, n8n, LangC

2 41/wk 7 tools GitHub npm

No known CVEs

No license

Maintained

Last commit 133d ago

Works with most clients

Transport: stdio

7 tools · ~207 tok

Grade A · 0.1% of 200K ctx

MCPpedia last refreshed this data 36d ago

Edit this pageView history

Postals MCP is an MCP server that postals — the agent skill that turns any AI into a direct mail machine. One MCP tool call mails a physical handwritten postcard (real pen-and-ink, USPS 3-5 day delivery, $4.99 per card). Works with Claude Desktop, Cursor, Claude Code, OpenClaw, n8n, LangC. Its tool list has not been published yet over stdio, requires no API key, and scores 75/100 on MCPpedia's security, maintenance and efficiency rubric.

AI / ML Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "postals-mcp": {
      "args": [
        "-y",
        "postals-mcp"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/postals-mcp)](https://mcppedia.org/s/postals-mcp)

Read me

What Postals Mcp does

The agent skill that turns any AI into a direct mail machine. > One tool call. Real handwritten postcards. Delivered by USPS.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'postals-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

75/100across 5 weighted dimensions

How we score →

0255075100

−25

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked postals-mcp against OSV.dev.

Inventory

Tools (7)

Click any tool to inspect its schema.

~207 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Postals Mcp safe to use?: Postals Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Postals Mcp?: Postals Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Postals Mcp do?: Postals Mcp provides 7 tools: Cursor, Variations, Troubleshooting, FAQ, Contributing and 2 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Postals Mcp?: Postals Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is Postals Mcp actively maintained?: Postals Mcp is less actively maintained — last commit was 133 days ago. It has 2 GitHub stars.

Similar servers

Others in ai-ml / communication

View all →

Dsh MCP Client97

MCP client bridge: connects to MCP servers and registers their tools on ctx.tools

196.7k 4

Gpt Researcher97

An autonomous agent that conducts deep research on any data using any LLM providers

29.2k 5

Modelcontextprotocol96

The official MCP server implementation for the Perplexity API Platform

2.5k 4

io.github.mims-harvard/tooluniverse96

1000+ scientific tools for AI scientists: life science, reserach, literature, and more.

1.7k 4

MCP Security Weekly

Get CVE alerts and security updates for Postals Mcp and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Frequently Asked Questions

Is Postals Mcp safe to use?

Postals Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install Postals Mcp?

Postals Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Postals Mcp do?

Postals Mcp provides 7 tools: Cursor, Variations, Troubleshooting, FAQ, Contributing and 2 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Postals Mcp?

Postals Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is Postals Mcp actively maintained?

Postals Mcp is less actively maintained — last commit was 133 days ago. It has 2 GitHub stars.