Stannp MCP Server for Pydantic AIGive Pydantic AI instant access to 11 tools to Create Physical Letter, Create Postcard, Create Recipient, and more
Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Stannp through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.
Ask AI about this App Connector for Pydantic AI
The Stannp app connector for Pydantic AI 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
import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
agent = Agent(
model="openai:gpt-4o",
mcp_servers=[server],
system_prompt=(
"You are an assistant with access to Stannp "
"(11 tools)."
),
)
result = await agent.run(
"What tools are available in Stannp?"
)
print(result.data)
asyncio.run(main())
* 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.
Pydantic AI validates every Stannp tool response against typed schemas, catching data inconsistencies at build time. Connect 11 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
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 Pydantic AI 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 Pydantic AI
When Pydantic AI 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.
Send a physical letter
Create and send a postcard
Create a new mailing recipient
Check account credit balance
Get details for a direct mail campaign
Get details for a specific letter
Get details for a specific recipient
List direct mail campaigns
List sent and drafted letters
List mailing recipients
List sent and drafted postcards
Connect Stannp to Pydantic AI via MCP
Follow these steps to wire Stannp into Pydantic AI. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.
Install Pydantic AI
pip install pydantic-aiReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenRun the agent
agent.py and run: python agent.pyExplore tools
Why Use Pydantic AI with the Stannp MCP Server
Pydantic AI provides unique advantages when paired with Stannp through the Model Context Protocol.
Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Stannp integration code
Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
Dependency injection system cleanly separates your Stannp connection logic from agent behavior for testable, maintainable code
Stannp + Pydantic AI Use Cases
Practical scenarios where Pydantic AI combined with the Stannp MCP Server delivers measurable value.
Type-safe data pipelines: query Stannp with guaranteed response schemas, feeding validated data into downstream processing
API orchestration: chain multiple Stannp tool calls with Pydantic validation at each step to ensure data integrity end-to-end
Production monitoring: build validated alert agents that query Stannp and output structured, schema-compliant notifications
Testing and QA: use Pydantic AI's dependency injection to mock Stannp responses and write comprehensive agent tests
Example Prompts for Stannp in Pydantic AI
Ready-to-use prompts you can give your Pydantic AI 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 Pydantic AI
Common issues when connecting Stannp to Pydantic AI through the Vinkius, and how to resolve them.
MCPServerHTTP not found
pip install --upgrade pydantic-aiStannp + Pydantic AI FAQ
Common questions about integrating Stannp MCP Server with Pydantic AI.
How does Pydantic AI discover MCP tools?
MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.