How do I find my Handwrytten API Key?

Log in to your Handwrytten dashboard, go to **Settings**, and then to the **API Keys** section. You can generate a new key or copy your existing one from there.

Can I use realistic handwriting fonts?

Yes! Handwrytten uses robots with real pens. You can list all available styles using the `list_fonts` tool and specify the `font_id` when sending a card.

How do I check if my card was sent?

Use the `list_orders` tool to see your history of sent cards or `get_order` with a specific order ID to check its current fulfillment status.

Is it possible to include gifts with the cards?

Yes, Handwrytten offers various gifts. You can list available items using the `list_gifts` tool and include the gift ID in your order request.

Handwrytten MCP Server for Pydantic AI 10 tools — connect in under 2 minutes

Name: Handwrytten
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 10 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Handwrytten through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

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 Handwrytten "
            "(10 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Handwrytten?"
    )
    print(result.data)

asyncio.run(main())

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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 Handwrytten MCP Server

Connect your Handwrytten account to any AI agent and take full control of your physical outreach and relationship management through natural conversation.

Pydantic AI validates every Handwrytten tool response against typed schemas, catching data inconsistencies at build time. Connect 10 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

Card Selection — Browse and list all available stationery and card categories for any occasion.
Font Management — List and select from various realistic handwriting styles to personalize your notes.
Order Automation — Send single or bulk handwritten cards with personalized messages directly from the chat.
Address Book Access — Manage your saved recipients and retrieve address details for quick sending.
Credit Monitoring — Instantly check your account credit balance to manage your outreach budget.
Template Insights — Browse your message templates to maintain brand consistency in your physical mail.

The Handwrytten MCP Server exposes 10 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.

How to Connect Handwrytten to Pydantic AI via MCP

Follow these steps to integrate the Handwrytten MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 10 tools from Handwrytten with type-safe schemas

Why Use Pydantic AI with the Handwrytten MCP Server

Pydantic AI provides unique advantages when paired with Handwrytten 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 Handwrytten integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your Handwrytten connection logic from agent behavior for testable, maintainable code

Handwrytten + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the Handwrytten MCP Server delivers measurable value.

Type-safe data pipelines: query Handwrytten with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple Handwrytten tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query Handwrytten and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock Handwrytten responses and write comprehensive agent tests

Handwrytten MCP Tools for Pydantic AI (10)

These 10 tools become available when you connect Handwrytten to Pydantic AI via MCP:

get_credit_balance

Check current account credit balance

get_order

Get details for a specific order

list_address_book

List recipients in your address book

list_cards

List all available cards/stationery

list_categories

List all card categories

list_fonts

List all available handwriting fonts

list_gifts

List available gifts that can be included with cards

list_orders

List history of card orders

list_templates

List message templates

send_card

Requires card_id, font_id, message, and recipient details. Send a single handwritten card

Example Prompts for Handwrytten in Pydantic AI

Ready-to-use prompts you can give your Pydantic AI agent to start working with Handwrytten immediately.

"Send a 'Thank You' card to John Doe using font hwDavid."

"Check my current credit balance."

"List all available handwriting fonts."

Troubleshooting Handwrytten MCP Server with Pydantic AI

Common issues when connecting Handwrytten to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Handwrytten + Pydantic AI FAQ

Common questions about integrating Handwrytten MCP Server with Pydantic AI.

How does Pydantic AI discover MCP tools?

Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.

Does Pydantic AI validate MCP tool responses?

Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.

Can I switch LLM providers without changing MCP code?

Absolutely. Pydantic AI abstracts the model layer. your Handwrytten MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.