4,000+ servers built on MCP Fusion
Vinkius
Mastra AISDK
Mastra AI
Why use Handwrytten MCP Server with Mastra AI?

Bring Direct Mail
to Mastra AI

Create your Vinkius account to connect Handwrytten to Mastra AI and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

MCP Inspector GDPR Free for Subscribers
Get Credit BalanceGet OrderList Address BookList CardsList CategoriesList FontsList GiftsList OrdersList TemplatesSend Card
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
Handwrytten

What is the 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.

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.

How it works

  1. Subscribe to this server
  2. Enter your Handwrytten API Key (found in Settings > API Keys)
  3. Start sending handwritten notes from Claude, Cursor, or any MCP-compatible client

No more manual data entry or ordering through the web interface. Your AI assistant acts as a dedicated outreach coordinator or relationship manager.

Who is this for?

  • Sales & Marketing Teams — automate personalized follow-ups and high-touch outreach campaigns.
  • Customer Success Managers — send 'Thank You' or 'Birthday' cards to clients without leaving the CRM flow.
  • Executive Assistants — manage the sending of physical holiday or appreciation cards effortlessly.

Built-in capabilities (10)

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

Why Mastra AI?

Mastra's agent abstraction provides a clean separation between LLM logic and Handwrytten tool infrastructure. Connect 10 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.

  • Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Handwrytten without touching business code

  • Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation

  • TypeScript-native: full type inference for every Handwrytten tool response with IDE autocomplete and compile-time checks

  • One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure

M
See it in action

Handwrytten in Mastra AI

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run Handwrytten with Vinkius?

The Handwrytten connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

Handwrytten
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect Handwrytten using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Why Vinkius

Handwrytten and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect Handwrytten to Mastra AI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

How Vinkius secures Handwrytten for Mastra AI

Every request between Mastra AI and Handwrytten is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

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.

02

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.

03

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.

04

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.

05

How does Mastra AI connect to MCP servers?

Create an MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.

06

Can Mastra agents use tools from multiple servers?

Yes. Pass multiple MCP clients to the agent constructor. Mastra merges all tool schemas and the agent can call any tool from any server.

07

Does Mastra support workflow orchestration?

Yes. Mastra has a built-in workflow engine that lets you chain MCP tool calls with branching logic, error handling, and parallel execution.

08

createMCPClient not exported

Install: npm install @mastra/mcp

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