Bring Direct Mail
to Vercel AI SDK
Create your Vinkius account to connect Handwrytten to Vercel AI SDK 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.
Compatible with every major AI agent and IDE
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
- Subscribe to this server
- Enter your Handwrytten API Key (found in Settings > API Keys)
- 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)
Check current account credit balance
Get details for a specific order
List recipients in your address book
List all available cards/stationery
List all card categories
List all available handwriting fonts
List available gifts that can be included with cards
List history of card orders
List message templates
Requires card_id, font_id, message, and recipient details. Send a single handwritten card
Why Vercel AI SDK?
The Vercel AI SDK gives every Handwrytten tool full TypeScript type inference, IDE autocomplete, and compile-time error checking. Connect 10 tools through Vinkius and stream results progressively to React, Svelte, or Vue components. works on Edge Functions, Cloudflare Workers, and any Node.js runtime.
- —
TypeScript-first: every MCP tool gets full type inference, IDE autocomplete, and compile-time error checking out of the box
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Framework-agnostic core works with Next.js, Nuxt, SvelteKit, or any Node.js runtime. same Handwrytten integration everywhere
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Built-in streaming UI primitives let you display Handwrytten tool results progressively in React, Svelte, or Vue components
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Edge-compatible: the AI SDK runs on Vercel Edge Functions, Cloudflare Workers, and other edge runtimes for minimal latency
Handwrytten in Vercel AI SDK
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.

* 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
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




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.
Handwrytten and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Handwrytten to Vercel AI SDK 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.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Handwrytten for Vercel AI SDK
Every request between Vercel AI SDK 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.
Frequently asked questions
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.
How does the Vercel AI SDK connect to MCP servers?
Import createMCPClient from @ai-sdk/mcp and pass the server URL. The SDK discovers all tools and provides typed TypeScript interfaces for each one.
Can I use MCP tools in Edge Functions?
Yes. The AI SDK is fully edge-compatible. MCP connections work on Vercel Edge Functions, Cloudflare Workers, and similar runtimes.
Does it support streaming tool results?
Yes. The SDK provides streaming primitives like useChat and streamText that handle tool calls and display results progressively in the UI.
createMCPClient is not a function
Install: npm install @ai-sdk/mcp
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