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 Google ADK 10 tools — connect in under 2 minutes

Name: Handwrytten
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 10 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Handwrytten as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

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

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="handwrytten_agent",
    instruction=(
        "You help users interact with Handwrytten "
        "using 10 available tools."
    ),
    tools=[mcp_tools],
)

Fully ManagedVinkius Servers

60%Token savings

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 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.

Google ADK natively supports Handwrytten as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 10 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

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 Google ADK 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 Google ADK via MCP

Follow these steps to integrate the Handwrytten MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 10 tools from Handwrytten via MCP

Why Use Google ADK with the Handwrytten MCP Server

Google ADK provides unique advantages when paired with Handwrytten through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Handwrytten

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine Handwrytten tools with BigQuery, Vertex AI, and Cloud Functions

Handwrytten + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Handwrytten MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Handwrytten and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Handwrytten tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Handwrytten regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Handwrytten

Handwrytten MCP Tools for Google ADK (10)

These 10 tools become available when you connect Handwrytten to Google ADK 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 Google ADK

Ready-to-use prompts you can give your Google ADK 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 Google ADK

Common issues when connecting Handwrytten to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Handwrytten + Google ADK FAQ

Common questions about integrating Handwrytten MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.