Bring Direct Mail
to Mastra AI
Learn how to connect Stannp to Mastra AI and start using 11 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the 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.
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
How it works
1. Subscribe to this server
2. Enter your Stannp API Key from your account settings
3. Start managing your direct mail from Claude, Cursor, or any MCP-compatible client
Built-in capabilities (11)
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
Why Mastra AI?
Mastra's agent abstraction provides a clean separation between LLM logic and Stannp tool infrastructure. Connect 11 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.
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Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Stannp without touching business code
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Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
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TypeScript-native: full type inference for every Stannp tool response with IDE autocomplete and compile-time checks
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One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
Stannp in Mastra AI
Stannp and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Stannp to Mastra AI through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Stannp in Mastra AI
The Stannp 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. All 11 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Mastra AI only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* 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
How Vinkius secures
Stannp for Mastra AI
Every tool call from Mastra AI to the Stannp MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I send a physical letter using my AI agent?
Yes! Use the create_physical_letter action. Provide the recipient details and a template ID to trigger printing and mailing programmatically.
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.
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.
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.
createMCPClient not exported
Install: npm install @mastra/mcp