Can I send a physical letter using my AI agent?

Yes! Use the `create_physical_letter` action. Provide the recipient details and a template ID to trigger printing and mailing programmatically.

INSTANT PLUG AND PLAY

Stannp MCP Server for OpenAI Agents SDKGive OpenAI Agents SDK instant access to 11 tools to Create Physical Letter, Create Postcard, Create Recipient, and more

Name: Stannp
Availability: InStock
Author: Vinkius

Built by Vinkius GDPR 11 Tools SDK

The OpenAI Agents SDK enables production-grade agent workflows in Python. Connect Stannp through Vinkius and your agents gain typed, auto-discovered tools with built-in guardrails. no manual schema definitions required.

Use with Your AI Agent

Ask AI about this App Connector for OpenAI Agents SDK

Open in ChatGPT Open in Claude Open in Perplexity

The Stannp app connector for OpenAI Agents SDK 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

python

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerStreamableHttp

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MCPServerStreamableHttp(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as mcp_server:

        agent = Agent(
            name="Stannp Assistant",
            instructions=(
                "You help users interact with Stannp. "
                "You have access to 11 tools."
            ),
            mcp_servers=[mcp_server],
        )

        result = await Runner.run(
            agent, "List all available tools from Stannp"
        )
        print(result.final_output)

asyncio.run(main())

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* 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.

The OpenAI Agents SDK auto-discovers all 11 tools from Stannp through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Stannp, another analyzes results, and a third generates reports, all orchestrated through Vinkius.

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 OpenAI Agents SDK 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 OpenAI Agents SDK

When OpenAI Agents SDK 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 OpenAI Agents SDK via MCP

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

Install the SDK

Run pip install openai-agents in your Python environment

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token from cloud.vinkius.com

Run the script

Save the code above and run it: python agent.py

Explore tools

The agent will automatically discover 11 tools from Stannp

Why Use OpenAI Agents SDK with the Stannp MCP Server

OpenAI Agents SDK provides unique advantages when paired with Stannp through the Model Context Protocol.

Native MCP integration via `MCPServerSse`, pass the URL and the SDK auto-discovers all tools with full type safety

Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

Stannp + OpenAI Agents SDK Use Cases

Practical scenarios where OpenAI Agents SDK combined with the Stannp MCP Server delivers measurable value.

Automated workflows: build agents that query Stannp, process the data, and trigger follow-up actions autonomously

Multi-agent orchestration: create specialist agents. one queries Stannp, another analyzes results, a third generates reports

Data enrichment pipelines: stream data through Stannp tools and transform it with OpenAI models in a single async loop

Customer support bots: agents query Stannp to resolve tickets, look up records, and update statuses without human intervention

Example Prompts for Stannp in OpenAI Agents SDK

Ready-to-use prompts you can give your OpenAI Agents SDK agent to start working with Stannp immediately.

"List my sent letters in Stannp."

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

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

Troubleshooting Stannp MCP Server with OpenAI Agents SDK

Common issues when connecting Stannp to OpenAI Agents SDK through the Vinkius, and how to resolve them.

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

Stannp + OpenAI Agents SDK FAQ

Common questions about integrating Stannp MCP Server with OpenAI Agents SDK.

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.

Can I use multiple MCP servers in one agent?

Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.

Does the SDK support streaming responses?

Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.