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Stannp MCP Server for Claude DesktopGive Claude Desktop instant access to 11 tools to Create Physical Letter, Create Postcard, Create Recipient, and more

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Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Use with Your AI Agent

Ask AI about this App Connector for Claude Desktop

Open in ChatGPT Open in Claude Open in Perplexity

The Stannp app connector for Claude Desktop is a standout in the Productivity category — giving your AI agent 11 tools to work with, ready to go from day one.

Vinkius delivers Streamable HTTP and SSE to any MCP client

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install Stannp and 3,400+ MCP Servers from a single visual interface.

Vinkius Desktop InterfaceVinkius Desktop InterfaceVinkius Desktop InterfaceVinkius Desktop Interface
Download Free Open SourceNo signup required
Classic Setup·json
{
  "mcpServers": {
    "stannp": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}
Stannp
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High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Stannp MCP Server

Connect your Stannp account to any AI agent and simplify your direct mail marketing, physical letter delivery, and mailing list management through natural conversation.

Claude Desktop is the definitive way to connect Stannp to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 11 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

What you can do

  • Physical Mail Delivery — Create and send single or bulk letters and postcards programmatically directly from your agent
  • Campaign Management — Query all configured direct mail campaigns and retrieve detailed metadata and status
  • Recipient Control — Query your database of contacts and mailing addresses to choose the right recipients for each piece
  • Account tracking — Access your real-time account balance to manage your mailing spend
  • Live Monitoring — Access a history of sent and drafted letters to stay on top of your physical outreach

The Stannp MCP Server exposes 11 tools through the Vinkius. Connect it to Claude Desktop in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 11 Stannp tools available for Claude Desktop

When Claude Desktop connects to Stannp through Vinkius, your AI agent gets direct access to every tool listed below — spanning direct-mail, physical-letters, postcards, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.

create_physical_letter

Send a physical letter

create_postcard

Create and send a postcard

create_recipient

Create a new mailing recipient

get_account_balance

Check account credit balance

get_campaign

Get details for a direct mail campaign

get_letter

Get details for a specific letter

get_recipient

Get details for a specific recipient

list_direct_mail_campaigns

List direct mail campaigns

list_letters

List sent and drafted letters

list_mailing_recipients

List mailing recipients

list_postcards

List sent and drafted postcards

Connect Stannp to Claude Desktop via MCP

Follow these steps to wire Stannp into Claude Desktop. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.

01

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json
02

Add the MCP Server

Paste the configuration above into the mcpServers section
03

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server
04

Start using Stannp

Look for the 🔌 icon in the chat. your 11 tools are now available

Why Use Claude Desktop with the Stannp MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with Stannp through the Model Context Protocol.

01

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

02

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

03

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

04

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

Stannp + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the Stannp MCP Server delivers measurable value.

01

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

02

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

03

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

04

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

Example Prompts for Stannp in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with Stannp immediately.

01

"List my sent letters in Stannp."

02

"Show me all direct mail campaigns with their delivery status and response rates."

03

"Create and send a personalized postcard to our top 50 customers with a loyalty discount code."

Troubleshooting Stannp MCP Server with Claude Desktop

Common issues when connecting Stannp to Claude Desktop through the Vinkius, and how to resolve them.

01

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).
02

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.
03

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

Stannp + Claude Desktop FAQ

Common questions about integrating Stannp MCP Server with Claude Desktop.

01

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.
02

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.
03

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.
04

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.
05

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.