Bring Direct Mail
to OpenAI Agents SDK
Learn how to connect MailboxPower to OpenAI Agents SDK and start using 9 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the MailboxPower MCP Server?
Connect your MailboxPower account to any AI agent and manage direct mail marketing through natural conversation.
What you can do
- Gift Sending — Send personalized gifts, cards, and promotional items
- Campaign Management — Create and manage direct mail campaigns
- Product Catalog — Browse available products, cards, and promotional items
- Delivery Tracking — Monitor shipment status and delivery confirmations
- Contact Management — Manage recipient lists and contact information
How it works
1. Subscribe to this server
2. Enter your MailboxPower API Key
3. Start sending mail from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Sales Teams — send personalized gifts to prospects
- Marketing — run direct mail campaigns with tracking
- Customer Success — send thank-you cards and retention gifts
Built-in capabilities (9)
Start an automation for a contact
Add a contact to a group
Create a new contact
Create a new group
Get contact details
List all automations
List all contacts
List all contact groups
Send a card or gift
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 9 tools from MailboxPower through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries MailboxPower, another analyzes results, and a third generates reports, all orchestrated through Vinkius.
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Native MCP integration via
MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety - —
Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure
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Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate
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First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output
MailboxPower in OpenAI Agents SDK
MailboxPower and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect MailboxPower to OpenAI Agents SDK 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 MailboxPower in OpenAI Agents SDK
The MailboxPower 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 9 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in OpenAI Agents SDK 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
MailboxPower for OpenAI Agents SDK
Every tool call from OpenAI Agents SDK to the MailboxPower 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 personalized gifts and cards?
Yes. Browse the product catalog, personalize gifts and cards with custom messages, and send to any US address with delivery tracking.
Can I run direct mail campaigns?
Yes. Create campaigns with recipient lists, schedule mailings, and track delivery status for each piece.
What API does MailboxPower use?
Bearer authentication against api.mailboxpower.com/v1.
How does the OpenAI Agents SDK connect to MCP?
Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.
Can I use multiple MCP servers in one agent?
Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.
Does the SDK support streaming responses?
Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.
MCPServerStreamableHttp not found
Ensure you have the latest version: pip install --upgrade openai-agents
Agent not calling tools
Make sure your prompt explicitly references the task the tools can help with.